Los Alamos County property records
Where to look up owners, values, tax bills, parcel maps, deeds and value appeals in Los Alamos County, New Mexico. Each link goes to the county or state office that keeps the record.
Where each record lives
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Owner, land, building and value
Look up an owner’s name and mailing address, land and building details and the assessed value in the Los Alamos County property search.
These records are kept by the Los Alamos County Assessor's Office.
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Tax bills and payments
Contact details and how-tos are on the Los Alamos County property tax office page.
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Parcel maps
See parcel boundaries, parcel numbers and aerial imagery on the Los Alamos County GIS parcel map.
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Deeds, liens and recorded documents
Search deeds, mortgages, liens and other recorded documents in the Los Alamos County deed and lien search.
Deeds and liens are recorded by the Los Alamos County Clerk.
We haven’t found Los Alamos County’s value appeals online. Call the county at (505) 662-8333 or start at its website, losalamosnm.gov.
Links go to official county and state sites and were last checked in November 2026. Offices move their pages, so if one has changed, the county’s own website (losalamosnm.gov) is the place to start.