Los Alamos County is a small county in north-central New Mexico, situated on the Pajarito Plateau along the eastern flank of the Jemez Mountains, west of the Rio Grande and northwest of Santa Fe. Established in 1949, it developed around the former wartime Los Alamos Laboratory and remains closely associated with national scientific research. The county is one of the least populous in the state, with roughly 19,000 residents, and is highly urbanized relative to its size, with most development concentrated in the communities of Los Alamos and White Rock. Its economy is dominated by federal employment and research activity centered on Los Alamos National Laboratory, alongside supporting services and education. The landscape includes mesas, canyon systems, and extensive surrounding public lands, contributing to a mix of developed areas and protected open space. The county seat is Los Alamos.

Los Alamos County Local Demographic Profile

Los Alamos County is a small county in north-central New Mexico, located on the Pajarito Plateau west of the Rio Grande and northwest of Santa Fe. It is best known for the community of Los Alamos and the presence of Los Alamos National Laboratory.

Population Size

Age & Gender

Age distribution (percent of total population, 2023) — reported by the U.S. Census Bureau (QuickFacts):

  • Under 18 years: 18.1%
  • 18 to 64 years: 66.9%
  • 65 years and over: 15.0%

Gender (percent of total population, 2023) — reported by the U.S. Census Bureau (QuickFacts):

  • Female persons: 44.5%
  • Male persons: 55.5% (calculated as the remainder from QuickFacts female share)

Racial & Ethnic Composition

Race (percent of total population, 2023) — reported by the U.S. Census Bureau (QuickFacts):

  • White alone: 84.8%
  • Black or African American alone: 0.7%
  • American Indian and Alaska Native alone: 0.7%
  • Asian alone: 8.3%
  • Native Hawaiian and Other Pacific Islander alone: 0.1%
  • Two or more races: 4.2%

Ethnicity (percent of total population, 2023) — reported by the U.S. Census Bureau (QuickFacts):

  • Hispanic or Latino (of any race): 17.4%
  • White alone, not Hispanic or Latino: 70.7%

Household & Housing Data

Households and housing (most recent figures shown in QuickFacts) — from the U.S. Census Bureau (QuickFacts):

  • Households (2019–2023): 8,114
  • Persons per household (2019–2023): 2.36
  • Owner-occupied housing unit rate (2019–2023): 66.9%
  • Median value of owner-occupied housing units (2019–2023, in 2023 dollars): $393,100
  • Median gross rent (2019–2023, in 2023 dollars): $1,595
  • Housing units (2023): 9,223

For local government and planning resources, visit the Los Alamos County official website.

Email Usage

Los Alamos County is a small, mountainous county on the Pajarito Plateau, with development concentrated in Los Alamos and White Rock; limited corridors and rugged terrain can constrain last‑mile broadband buildout and redundancy, shaping day‑to‑day digital communication. Direct county-level email usage statistics are not routinely published, so broadband and device access are used as proxies for likely email access and adoption.

Digital access indicators for the county (household broadband subscriptions and computer ownership) are available from the U.S. Census Bureau’s data.census.gov (American Community Survey). These measures generally track the practical ability to use email reliably at home.

Age distribution data from the American Community Survey provides context for adoption: older populations tend to rely heavily on email for formal communication, while younger residents often diversify across messaging platforms; age mix therefore influences overall email reliance even when access is high. Gender distribution is also available via the ACS but is not typically a primary driver of email access relative to age and connectivity.

Connectivity constraints and infrastructure context can be referenced through Los Alamos County government planning and broadband-related materials and federal mapping such as the FCC National Broadband Map.

Mobile Phone Usage

Los Alamos County is a small, high-elevation county in north-central New Mexico on the Pajarito Plateau, best known for Los Alamos National Laboratory. The county’s settlement pattern is concentrated in Los Alamos and White Rock, surrounded by rugged canyon-and-mesa terrain and extensive federal lands. This topography, combined with mountainous relief and limited road corridors, can create localized cellular coverage constraints even where statewide networks are robust. Population density is higher than many rural New Mexico counties but remains low relative to major urban counties, which influences the economics of tower placement and backhaul.

Key distinction: network availability vs. adoption

Network availability refers to where mobile carriers report service (coverage) and where measured signal/service exists. Adoption refers to whether residents/households actually subscribe to mobile service and use mobile broadband devices. These two measures often diverge: an area can show broad “availability” on coverage maps while having lower household adoption due to affordability, device access, or preferences for fixed broadband.

Mobile penetration and access indicators (adoption)

Household internet subscriptions and mobile-only reliance (county-level where available)

County-level “mobile penetration” is not typically published as a single statistic. The most standardized adoption indicators come from the U.S. Census Bureau’s American Community Survey (ACS), which reports household internet subscription types, including cellular data plans and smartphone-only access in many ACS tables.

Limitations: ACS internet subscription estimates are survey-based and subject to sampling error, particularly in smaller counties. ACS does not directly publish a universal “mobile penetration rate” comparable to some international measures; it publishes household subscription categories that can be used to infer mobile access and smartphone-only reliance.

Mobile internet usage patterns (4G/5G) and network availability

Reported mobile broadband coverage (availability)

The most authoritative U.S. coverage reporting framework is the FCC’s Broadband Data Collection (BDC), which includes mobile broadband availability by provider and technology generation (e.g., LTE, 5G). Reported availability can be examined at fine geography and aggregated to counties.

Interpretation notes:

  • FCC mobile availability reflects provider-submitted coverage polygons and associated service parameters, not guaranteed in-building performance.
  • Terrain like mesas and canyons can cause meaningful variation within short distances; countywide availability summaries may mask local dead zones.

4G LTE and 5G presence

At the county scale, 4G LTE is generally the baseline technology used for wide-area coverage, with 5G availability varying by provider, spectrum type, and proximity to populated corridors. The FCC map provides the most consistent way to distinguish where providers report LTE versus 5G in Los Alamos County.

Limitations: Public county-level statistics describing the share of residents actively using 4G vs 5G are not typically published. Device telemetry datasets exist in the private sector but are not standard public references for county reporting. As a result, reliable discussion at the county level generally focuses on availability (coverage) rather than usage share.

Common device types (smartphones vs. other devices)

Household device and subscription indicators

Public county-level device-type indicators are most commonly inferred from ACS measures such as:

  • households with smartphones
  • households with cellular data plans
  • households that are smartphone-only for internet access (where tabulated)

These indicators describe access, not necessarily the full device mix (e.g., tablets, dedicated hotspots, or IoT devices), which are not comprehensively captured at county level in public datasets.

Limitations: The ACS focuses on household access and does not enumerate all device categories used outside the home (work devices, enterprise-issued devices, IoT endpoints). County-level breakdowns of smartphone OS, handset models, or 5G handset penetration are not standard in public statistical releases.

Demographic and geographic factors influencing mobile usage and connectivity

Geography, terrain, and land ownership

Los Alamos County’s plateau-and-canyon terrain can affect radio propagation and line-of-sight, producing coverage variability between mesa tops, canyon bottoms, and built-up areas. The presence of large federal and laboratory-managed lands can also influence where infrastructure is placed and how backhaul routes are engineered.

Population distribution and settlement pattern

The county’s population is concentrated in a small number of communities rather than dispersed across many rural settlements. This concentration typically supports stronger coverage and capacity in the main population centers than in peripheral or undeveloped areas, while still leaving terrain-driven gaps.

  • County population and density are available from the Census Bureau’s county profiles and ACS: Census QuickFacts

Socioeconomic characteristics and digital adoption

Los Alamos County is frequently characterized by higher educational attainment and income relative to many counties in New Mexico, attributes that are often associated (in ACS-based research) with higher broadband subscription and smartphone access. The ACS provides county-level socioeconomic measures used to contextualize adoption patterns.

Limitations: While socioeconomic indicators correlate with adoption in many analyses, the ACS tables themselves are the appropriate reference for direct estimates of household internet and device access types in the county.

State and planning context relevant to Los Alamos County

New Mexico’s statewide broadband planning and mapping efforts provide additional context for infrastructure investment and unserved/underserved identification, which can intersect with mobile coverage and adoption initiatives.

Summary of what is known vs. not available at county resolution

  • Well-supported at county level (public sources):

    • Household internet subscription categories that include cellular data plans and smartphone access (ACS via data.census.gov).
    • Provider-reported mobile broadband availability by technology (LTE/5G) via the FCC National Broadband Map.
    • Core demographics, population density, and settlement concentration (Census profiles via QuickFacts).

  • Commonly unavailable or not standardized publicly at county level:

    • A single “mobile penetration rate” for the county analogous to subscriber-per-100 metrics.
    • Direct measurement of actual 4G vs 5G usage share among residents (as opposed to coverage).
    • Comprehensive device mix beyond household-reported smartphone/computer access (e.g., hotspots, wearables, IoT endpoints).

Social Media Trends

Los Alamos County is a small, high‑income county in north‑central New Mexico anchored by the town of Los Alamos and the adjacent unincorporated community of White Rock. Its economy is strongly shaped by scientific and technical employment associated with Los Alamos National Laboratory, contributing to high educational attainment, widespread broadband access, and routine use of digital communication tools that typically correlate with higher social media adoption.

User statistics (penetration and active use)

  • Local (county-specific) social media penetration: Public, county-representative estimates of “active social media users” for Los Alamos County are generally not published as a standalone statistic in major U.S. surveys; most authoritative sources report at the national level or at broader geographic levels (state/metro).
  • Best available benchmark (U.S. adults): Nationally, about 7 in 10 U.S. adults report using social media, based on ongoing survey work from the Pew Research Center’s Social Media Fact Sheet. This serves as the most widely cited benchmark for adult social media use.
  • Local context factors associated with higher adoption: Los Alamos County’s comparatively high income and educational attainment (as measured in official county profiles) are characteristics that, in national research, tend to align with higher internet and social media use. County demographic and economic profile context is available from U.S. Census Bureau QuickFacts for Los Alamos County, New Mexico.

Age group trends (who uses social media most)

National survey findings consistently show the highest usage among younger adults, with gradual declines by age:

  • 18–29: highest adoption; heavy multi-platform use
  • 30–49: high adoption; strong use of Facebook, Instagram, and YouTube
  • 50–64: moderate-to-high adoption; Facebook and YouTube tend to dominate
  • 65+: lower adoption than younger groups, though usage continues to rise over time
    Source: Pew Research Center (platform use by age).

Gender breakdown

National patterns show modest but consistent gender skews by platform (rather than a single uniform split across all social media):

  • Women are more likely than men to use platforms such as Pinterest and, in many surveys, Instagram.
  • Men are more likely than women to use platforms such as Reddit and, in some measures, X. Source: Pew Research Center (platform use by gender).

Most-used platforms (percentages where available)

County-level “most-used platform” shares are not typically reported in public probability surveys; the most defensible percentages come from national measures. Among U.S. adults, Pew reports the following approximate platform usage levels (share of U.S. adults who say they use each platform), updated periodically:

Local interpretation for Los Alamos County: Given the county’s strong concentration of STEM and professional employment, YouTube (general information/learning), Facebook (local community groups), and LinkedIn (professional networking) are commonly relevant platform categories in similar high‑education communities, though precise county platform shares are not published in major public datasets.

Behavioral trends (engagement patterns and preferences)

  • Multi-platform and video-centric behavior: Nationally, usage is increasingly multi-platform, and video consumption is a dominant mode of engagement, reflected in very high YouTube reach and growth in short-form video platforms. (Platform prevalence: Pew; broader digital trends: DataReportal’s Digital 2024: United States.)
  • Age-linked engagement styles: Younger adults tend to concentrate time on Instagram and TikTok-style feeds, while older groups are more concentrated on Facebook for community updates and network maintenance. Source: Pew Research Center.
  • Professional/interest-based usage: Higher educational attainment and professional specialization are associated with more frequent use of LinkedIn and topic-focused communities (e.g., Reddit-style forums) at the national level. Source: Pew (education and platform use).
  • Local community information seeking: In small counties with centralized population centers (Los Alamos and White Rock), social media commonly functions as a channel for local announcements, community groups, and event coordination, with Facebook Groups and local pages often serving as high-visibility nodes; this is a structural pattern seen broadly in U.S. local information ecosystems rather than a county-specific quantified metric.

Family & Associates Records

Los Alamos County does not generally maintain local “vital records” (birth, death, marriage, divorce) as county public files; in New Mexico these records are created and issued through the New Mexico Department of Health, Bureau of Vital Records and Health Statistics. Birth and death records are restricted and are typically available only to eligible requestors through the state. Adoption records are sealed under state law and are not available as open public records. Official access information is provided by the state at New Mexico DOH: Bureau of Vital Records.

For associate-related public records, Los Alamos County maintains property, tax, and certain court-related indexes that can help identify household members, co-owners, or related parties through addresses and transactions. County online resources include the Los Alamos County Assessor (property ownership and parcel data) and the Los Alamos County Treasurer (property tax accounts and payments). Recorded documents (deeds, liens) are handled by the County Clerk; access details are posted at Los Alamos County Clerk.

Public access is commonly provided through online search portals where available and in-person counter access during business hours. Privacy limits apply to restricted vital records, sealed adoption files, and some personal identifiers within public filings.

Marriage & Divorce Records

Types of records available

  • Marriage license and marriage certificate (county-level record)
    • Los Alamos County issues marriage licenses and maintains the associated county marriage record created from the license and returned certificate.
  • Divorce decree (court record)
    • Divorce actions (dissolution of marriage) are recorded by the district court as a final decree/judgment and related case filings.
  • Annulment decree (court record)
    • Annulments are recorded by the district court as a decree/judgment and related case filings.

Where records are filed and how they can be accessed

  • Marriage records

    • Filed/maintained by: Los Alamos County Clerk’s Office (marriage license issuance and returned certificate recording).
    • Access: Requests are handled through the County Clerk’s records services for certified or non-certified copies, subject to the office’s identification, fee, and request procedures. Index information may be available through the clerk’s public records access tools where provided by the county.
    • State-level verification: New Mexico maintains statewide vital records functions through the New Mexico Department of Health (NMDOH) Bureau of Vital Records and Health Statistics, which provides certified vital records services for eligible requestors.

  • Divorce and annulment records

    • Filed/maintained by: New Mexico district court serving Los Alamos County (case docket, pleadings, orders, and final decrees). Los Alamos County is within New Mexico’s First Judicial District.
    • Access: Copies of decrees and case documents are requested through the district court clerk. Case availability and document access depend on public access rules and any sealing or confidentiality orders.
    • Online docket access: New Mexico courts provide electronic case access through the statewide courts portal (availability varies by case type and document).

Typical information included in these records

  • Marriage license / recorded marriage record

    • Full legal names of the parties
    • Date and place of marriage (or intended place/date on the license and the certified return confirming the ceremony)
    • Ages or dates of birth (as recorded at the time of application)
    • Residences/addresses at time of application (commonly recorded)
    • Officiant’s name/title and certification/return of solemnization
    • Witness information (when recorded)
    • License number, filing/recording date, clerk/registrar details

  • Divorce decree

    • Caption and case number, court and county of filing
    • Names of parties
    • Date of filing and date of final decree/judgment
    • Findings and orders dissolving the marriage
    • Orders regarding child custody/parenting time, child support, spousal support (alimony), and division of property/debts (as applicable)
    • Name/signature of judge and certification by the court clerk

  • Annulment decree

    • Caption and case number, court and county of filing
    • Names of parties
    • Date of decree/judgment
    • Legal basis for annulment and resulting orders (often addressing status, property, and support-related issues where applicable)
    • Name/signature of judge and certification by the court clerk

Privacy or legal restrictions

  • Marriage records

    • Certified copies of vital records are generally restricted to eligible parties under New Mexico vital records law and NMDOH administrative rules; identification and relationship requirements commonly apply for certified issuance.
    • Non-certified informational copies and index information may be available through county public records practices, subject to New Mexico public records law and any applicable exemptions.

  • Divorce and annulment court records

    • Court case files are generally public records, but access can be limited by:
      • Sealing orders or statutory confidentiality for specific filings
      • Protection of minors’ information and other sensitive personal identifiers (redaction requirements)
      • Confidential exhibits or records governed by court rules (including certain domestic relations documents)
    • The publicly accessible portion of a domestic relations case may be narrower than the complete file when confidential information is present.

Record custody overview (Los Alamos County context)

  • Marriage licensing and local recording: Los Alamos County Clerk.
  • Statewide vital records certification: NMDOH Bureau of Vital Records and Health Statistics.
  • Divorce/annulment adjudication and decrees: New Mexico District Court (First Judicial District) clerk’s office and the New Mexico Courts case management/public access systems.

Education, Employment and Housing

Los Alamos County is a small, high-income county in north‑central New Mexico on the Pajarito Plateau, centered on the communities of Los Alamos and White Rock. It has a highly educated population and an economy dominated by federal scientific research activity associated with Los Alamos National Laboratory, which shapes school programming, occupational mix, commuting, and housing demand.

Education Indicators

Public schools (Los Alamos Public Schools)

Los Alamos County is served primarily by Los Alamos Public Schools (LAPS). Public school campuses commonly listed under LAPS include:

  • Los Alamos High School
  • Los Alamos Middle School
  • Mountain Elementary School
  • Aspen Elementary School
  • Barranca Elementary School
  • Chamisa Elementary School
  • Piñon Elementary School

School directory and district information are published by Los Alamos Public Schools. (School counts can vary slightly by year due to program locations and administrative changes; the LAPS directory is the authoritative roster.)

Student–teacher ratios and graduation

  • Student–teacher ratios: The most consistently cited county-level proxy is the district student–teacher ratio reported in education and community profiles (commonly around the mid‑teens students per teacher for LAPS). A single official “countywide” ratio is not always published in one place; district reporting is the best proxy.
  • Graduation rates: Los Alamos High School’s graduation rate is typically reported as high relative to state averages in state and school accountability reporting. For the most recent official values, the most direct source is the New Mexico Public Education Department dashboards and school report cards: New Mexico Public Education Department (PED).

Because annual values can change and PED is the authoritative publisher, PED reporting is the definitive source for “most recent year available” graduation and accountability measures.

Adult educational attainment (county residents)

Los Alamos County has one of the highest educational attainment profiles in New Mexico. The most recent widely used benchmark is the U.S. Census Bureau’s American Community Survey (ACS):

  • High school diploma or higher (age 25+): typically well above 95%
  • Bachelor’s degree or higher (age 25+): typically well above 60% (often among the highest in the state)

Authoritative county estimates are provided by U.S. Census Bureau data (ACS).

Notable programs (STEM, AP, career/technical)

  • The district’s program emphasis is commonly characterized by strong STEM offerings, reflecting the county’s research‑oriented workforce.
  • Advanced Placement (AP) coursework is offered at the high school level (course availability varies by year).
  • Career and technical education offerings exist in New Mexico public schools generally; local program specifics are best verified through LAPS secondary program guides and PED CTE reporting.

Program listings and course catalogs are maintained by LAPS.

School safety measures and counseling resources

  • District safety practices generally include controlled campus access, emergency preparedness protocols, and coordination with local public safety agencies; operational details are typically published in district policies and school handbooks.
  • Counseling resources generally include school counselors and student support services at the secondary level, with additional supports and referrals coordinated through district student services.

For definitive statements on current procedures and staffing models, the district’s published policies and campus handbooks (via LAPS) are the most direct sources; public “countywide” safety staffing ratios are not consistently reported in a single consolidated dataset.

Employment and Economic Conditions

Unemployment rate (most recent year available)

Los Alamos County typically reports one of the lowest unemployment rates in New Mexico. The authoritative source for the most recent annual and monthly unemployment rates is the U.S. Bureau of Labor Statistics Local Area Unemployment Statistics (LAUS) (county series).
(As published in recent periods, the county generally trends around low single‑digits.)

Major industries and sectors

Employment is concentrated in:

  • Scientific research and development / professional, scientific, and technical services
  • Federal government and federal contracting linked to Los Alamos National Laboratory
  • Education, health services, and public administration (supporting local services)
  • Retail and accommodation/food services (smaller share; largely local-serving)

A sector view is available through ACS industry tables at data.census.gov and regional labor market profiles.

Common occupations and workforce breakdown

Common occupational groupings include:

  • Management occupations
  • Computer, engineering, and science occupations
  • Business and financial operations
  • Education, training, and library
  • Office and administrative support and sales (supporting local services)

These distributions are reported in ACS occupation tables via the U.S. Census Bureau.

Commuting patterns and mean commute time

  • Commuting in Los Alamos County is shaped by concentrated employment at major worksites and limited roadway connections off the plateau.
  • Mean commute times for county residents are published by the ACS; Los Alamos County typically posts moderate average commute times compared with larger metro areas.

The definitive, most recent county mean commute time and mode share (drive alone, carpool, transit, walk, work from home) are available in ACS commuting tables at data.census.gov.

Local employment vs. out-of-county work

A substantial share of residents both work within the county (especially in research and education) and commute across county lines (notably to/from Santa Fe County and other nearby areas). The most standardized “inflow/outflow” measures come from LEHD OnTheMap (U.S. Census Bureau), which reports the residence–workplace geography of jobs.

Housing and Real Estate

Homeownership vs. renting

Los Alamos County is predominantly owner-occupied, with a rental market influenced by professional in‑migration and limited developable land. The most recent owner/renter shares are published in ACS housing tenure tables via data.census.gov.
(County profiles commonly show a majority of households owning rather than renting.)

Median property values and recent trends

  • Median home values in Los Alamos County are high for New Mexico, reflecting constrained supply and high incomes.
  • Recent trends in many New Mexico mountain/amenity and high‑income counties have included price appreciation since 2020, followed by slower growth as interest rates increased; the precise county trend is best measured using ACS median value time series and local transaction data.

The most consistent public benchmark is the ACS median value of owner‑occupied housing units at data.census.gov. (Transaction-based indices are often proprietary or vary by methodology.)

Typical rent prices

Typical rents (median gross rent) are reported by the ACS and are generally above state medians. The most recent values are available through ACS gross rent tables.
(Observed market rents can vary substantially by unit type and availability; ACS provides the standardized countywide median.)

Housing types

Housing stock includes:

  • Single‑family detached homes (a major share in Los Alamos and White Rock)
  • Townhomes/duplexes and small multifamily
  • Apartments and limited higher‑density multifamily compared with larger cities
  • Rural/large-lot properties exist but are constrained by topography, federal land holdings, and development limits on the plateau

Housing unit type distributions are reported in ACS structure-type tables via data.census.gov.

Neighborhood characteristics (schools and amenities)

  • Los Alamos concentrates civic services, schools, parks, and shopping in a relatively compact town pattern.
  • White Rock functions as a residential community with access to schools and local retail, with commuting ties to major employment sites.
  • Proximity to trails, open space, and community facilities is a common neighborhood feature due to the county’s layout and surrounding public lands.

These characteristics are primarily geographic/community-structure descriptions; standardized “neighborhood amenity indices” are not typically published as a single county dataset.

Property tax overview (rate and typical cost)

  • New Mexico property taxes are based on assessed value (a fraction of market value under state rules) multiplied by local mill rates.
  • Countywide effective property tax rates for owner-occupied housing can be benchmarked using ACS “selected monthly owner costs” and local assessor/treasurer information; however, a single “average rate” varies by jurisdictional overlays and is better represented via local tax authority documentation.

Local property valuation and billing context is provided by Los Alamos County’s assessor/treasurer resources: Los Alamos County. For statewide valuation framework, reference materials are available through New Mexico Taxation and Revenue Department. (A single definitive “typical homeowner tax bill” requires parcel-level valuation and mill rate; public summaries are not always published as one county median figure.)

Table of Contents

Other Counties in New Mexico