SearchSystems Editorial
Edited by Sam Rokni — Editor & Owner, SearchSystems.net. Public records professional since 1999. NAPBS founding member. Full bio & credentials.
Last reviewed: June 04, 2026 · Methodology: all Los Alamos County record-source URLs verified against the official local and New Mexico state publishers on the review date. 4 primary .gov / official sources cited below.
Los Alamos County — Key Numbers (2026)
Population, demographics, and county-seat data for Los Alamos County, New Mexico — verified against U.S. Census 2024 estimates.
19,675
Population
Census estimate
8,149
Households
Census estimate
$135,801
Median income
Annual household
$412,700
Median home value
Census ACS
Los Alamos
County seat
In New Mexico
Criminal records
see state portal
Court records
5 sources
Wants & warrants
see state portal
Property records
4 sources
Vital records
see state portal
Voter records
see state portal
Professional licenses
see state portal
Recorded documents
see state portal
Count of verified official sources per record type. Multiple sources One source Use state portal
Los Alamos County Records at a Glance
| Record type | Los Alamos County verified sources |
|---|---|
| Court records | Reminder: East Park and North Mesa Court Renovations Start M… Home - Incorporated County of Los Alamos, NM |
| Criminal records | No verified source — see Los Alamos County state portal below |
| Wants & warrants | No verified source — see Los Alamos County state portal below |
| Property records | Assessor FAQs - Incorporated County of Los Alamos, NM https://gis.losalamosnm.us/securegis/rest/services... |
| Vital records | No verified source — see Los Alamos County state portal below |
| Voter records | No verified source — see Los Alamos County state portal below |
| Professional licenses | No verified source — see Los Alamos County state portal below |
| Recorded documents | No verified source — see Los Alamos County state portal below |
Count of officially verified .gov / .us record sources cataloged for Los Alamos County. Data verified June 04, 2026.
What Changed in 2026 — Los Alamos County Records
2026
Los Alamos County official government portal active
The official Los Alamos County government website at www.losalamosnm.us continues to serve as the canonical local source.
2026
Los Alamos County court records portal verified
State court system links for Los Alamos County verified against the New Mexico judiciary portal in 2026.
2026
Los Alamos County property records online
Los Alamos County property assessment and recorder office online portal active in 2026.
2026
FBI Identity History Summary (federal complement)
For records that may exist outside New Mexico, the FBI Identity History Summary at fbi.gov complements all county-level state records.
The 4-Step Los Alamos County Records Pathway
1
Step 1 — Start at the Los Alamos County clerk/courthouse
For most local records (court cases, property deeds, marriage licenses), the Los Alamos County clerk's office is the first stop.
2
Step 2 — Use the New Mexico statewide systems
Criminal background, court case search, voter registration, and professional licensing are all run at the New Mexico state level — not by the county.
3
Step 3 — Federal sources for federal records
Federal court cases (PACER), federal tax liens (IRS), military records (NPRC), and immigration data (ICE) are all federal — not held by the county.
4
Step 4 — Cross-check before relying on data
Most county portals lag 24-48 hours behind the courthouse. For time-sensitive verification, call the clerk directly.
Five Things People Get Wrong About Los Alamos County Records
❌ Myth: "Los Alamos County maintains all criminal records."
✓ Truth: False. Criminal records for Los Alamos County are held by the New Mexico state repository, NOT the county. The county sheriff has only the local arrest log.
❌ Myth: "Records sealed in Los Alamos County are gone everywhere."
✓ Truth: False. Sealing removes records from public search but they still exist at the courthouse and may appear in FBI records (Identity History Summary).
❌ Myth: "Free 'instant background' sites have Los Alamos County data."
✓ Truth: False. Only the official New Mexico state repository has verified, current Los Alamos County data. Free sites often have stale data.
❌ Myth: "The Los Alamos County assessor's value is what I'll sell my home for."
✓ Truth: False. The Los Alamos County assessor's value is for property tax purposes only — usually below market value.
❌ Myth: "All county records older than 50 years are public."
✓ Truth: Partially false. Public-records rules vary by record type AND state. Court records and deeds are usually older-public; vital records remain restricted longer (often 75-125 years).
Primary Sources (All Verified)
- www.losalamosnm.us — Official Los Alamos County government website
- www.losalamosnm.gov — Court records — official source
- gis.losalamosnm.us — Property records — official source
- fbi.gov — FBI Identity History Summary (federal record)
Related — Los Alamos County & New Mexico Records
For records not specific to Los Alamos County, use New Mexico's statewide system or the national hub.
📍 New Mexico statewide record systems:
- New Mexico Court Records →
- New Mexico Criminal Records →
- New Mexico Property Records →
- New Mexico Vital Records →
- New Mexico Voter Records →
- New Mexico Wants & Warrants →
- New Mexico Licenses →
- New Mexico Recorded Documents →
🇺🇸 National hubs:
Related Public Records
New Mexico statewide records: Court records · Criminal records · Wants & warrants · Property records · Vital records · Voter records · Licenses · Recorded docs
National directories: Court records · Criminal records · Property records · Vital records · Federal databases
About Los Alamos County, New Mexico
Los Alamos County is located in north-central New Mexico. The county seat is Los Alamos (official site: http://www.losalamosnm.us/).
- Population: 19,675
- Households: 8,149
- Median household income: $135,801
- Median home value: $412,700
- Below poverty line: 3.7%
- Land area: 109.1 sq mi
- Population density: 180.3 people / sq mi
- Public libraries indexed: 2
- NCES schools indexed: 7
Los Alamos County
Official Free
Field notes are the narrative record of the cadastral survey . They are written in tabular format and contain the detailed descriptions of entire survey process including the instrumentation and procedures utilized, calling all physical evidence evaluated in the survey process, and listing all ...
Show me a bill - Incorporated County of Los Alamos, NM
Official Free
Once the TOU and the Residential Demand rate structure is in place, monthly bills will show three components: Service Charge of $22.50 Demand Charge at the rate of $1 per peak KWEnergy Charges $0.1970/kwh for energy used during peak hours$0.1100/kwh ...
Maps - Incorporated County of Los Alamos, NM
Official Free
Due to ongoing dry conditions and prevailing high winds, Fire Marshal Colorado Cordova of the Los Alamos Fire Department (LAFD) has enacted fire restrictions to Stage 1, effective April 28, within the boundaries of Los Alamos County to safeguard public health and safety, as well as protect ...
Government - Incorporated County of Los Alamos, NM
Official Free
Learn about your County Councilors, join a Board or Commission, explore department services, search the staff directory, apply for jobs, and access ordinances, financial reports, and other transparency resources.
Reminder: East Park and North Mesa Court Renovations Start March 5 - Incorporated County of Los Alamos, NM
Official Free
The IFB25-36 East Park Basketball Court and North Mesa Tennis Courts Renovation Project is set to begin today, March 5th as the first phase of this exciting upgrade.
Home - Incorporated County of Los Alamos, NM
Official Free
Due to ongoing dry conditions and prevailing high winds, Fire Marshal Colorado Cordova of the Los Alamos Fire Department (LAFD) has enacted fire restrictions to Stage 1, effective April 28, within the boundaries of Los Alamos County to safeguard public health and safety, as well as protect ...
NM Court Case Lookup
Official Free
Use of this site for any purpose other than viewing individual electronic court records, or attempts to download multiple records per transaction, are strictly prohibited. Data use is subject to NMSA 1978, Sec. 14-3-15.1 · If the information displayed on this site does not accurately reflect ...
Public Records - First Judicial District Court - New Mexico Courts
Official Free
See current electronic court records from all New Mexico Courts.
NM Case Lookup - New Mexico Courts
Criminal & Court Records
.gov
Statewide New Mexico court case lookup.
caselookup.nmcourts.gov
Assessor FAQs - Incorporated County of Los Alamos, NM
Official Free
Q. Why did my property taxes increase this year?Your property tax is determined in part by the net taxable value of your property, which varies with fluctuations in the real estate market and any modifications you may have made to the property, in part by the revenue needs of...
https://gis.losalamosnm.us/securegis/rest/services...
Official Free
{ "currentVersion": 10.91, "serviceDescription": "This map service provides base layers for the LA County parcel viewer application.", "mapName": "Layers", "description": "", "copyrightText": "LA County GIS ", "supportsDynamicLayers": true, "layers": [ { "id": 0, "name": "AddressLabels", ...
INCORPORATED COUNTY OF LOS ALAMOS RESOLUTION NO. 24-01
Official Free
regularly scheduled meeting as required under this Resolution. All agendas shall be posted on · the County’s website, provided the website is operational during the period of seventy-two (72) Incorporated County of Los Alamos Resolution No.
Ontario
Official Free
This site will not function properly if IE Compatibility Mode is enabled. Please disable Compatibility Mode and refresh the page. If you do not know how to disable Compatibility Mode please submit a ticket to our support team and they will be happy to assist you. Technical Data:
New Mexico Department of Public Safety
Official Free
Case Lookup · Exit · ©2007-2010 New Mexico Courts
New Mexico Public Health Offices
Official Free
Vital Records(birth certificates) Please call to verify hours · Women, Infants and Children(special supplemental nutrition assistance program) Return to Top · Los Alamos · 1183 Diamond Drive, Suite D Los Alamos, NM 87544 505-662-4038 - Phone 505-662-3899 - Fax ·
My Registration Information
Official Free
Voter Information Portal · New Mexico Office of the Secretary of State · New Mexico Capitol Annex North / 325 Don Gaspar, Suite 300 / Santa Fe, NM 87501 · (505) 827-3600 / (800) 477-3632 / Email SOS Elections · Visit Secretary of State Website · Contact your County Clerk ·
Online Services | NM Regulation and Licensing Department
Official Free
For an alcohol liquor license, alcohol delivery permit, tobacco/tobacco products license and expiration date, or Server Permits, search the RLD database by selecting Regulation Type (Alcohol or Tobacco), Entity Type (busines/premises, Alcohol Server or Instructor) and enter the Business Type & Name for Establishments or First Name and Last Name for Server (do not search for old permit number). Click on the link below: The New Mexico Regulation and Licensing Department has implemented an online licensing system called NM-PLUS for 28 professions regulated under the Boards and Commissions…
Maggie Toulouse Oliver - New Mexico Secretary of State | New Mexico Secretary of State
Official Free
View your voter registration and your county clerk contact information. Find a list of voter registration agents near you. Enter a street number and zip code to find the closest voting locations near you. Visit our one-stop shop for Business Services. You can use this site to: The Secretary of State is pleased to offer many of its services online. You can search public business information, E-File corporate and partnership reports. Visit the New Mexico Secretary of
Codes
Official Free
The new EDGAR advanced search gives you access to the full text of electronic filings since 2001 · Refine search results by: · Entity · Incorporated in · Principal executive offices located in · Click headings to show top filters. Document counts shown in # · Show Columns · Filed · ...
Frequently Asked Questions
How do I look up court cases in Los Alamos County?
Los Alamos County court cases are searchable through the Reminder: East Park and North Mesa Court Renovations Start March 5 - Incorporated County of Los Alamos, NM portal: https://www.losalamosnm.gov/News-media/Reminder-East-Park-and-North-Mesa-Court-Renovations-Start-Today-March-5. New Mexico also operates a state-level case lookup through the NM Courts Case Lookup system. For federal matters, see PACER.
Can I find out if someone is divorced in New Mexico?
Yes. Search the court case index for the person's name in the county where they lived. Most New Mexico counties offer free online case-search portals. The state vital records office also issues divorce verifications for a fee.
How long does an arrest stay on my record in New Mexico if I wasn't convicted?
In New Mexico, an arrest stays on your record indefinitely unless you petition the court to seal or expunge it, even if charges were dropped or you were found not guilty. New Mexico's rules for clearing non-conviction records are stricter than for convictions — start with the New Mexico Department of Public Safety.
How do I run a New Mexico background check?
New Mexico background checks are handled by the New Mexico Department of Public Safety. Name-based searches are available through the official state portal (per-search fee applies). Fingerprint-based checks — required for licensing, foster care, and many employers — must be submitted through an approved vendor.