Los Alamos ZIP codes — Los Alamos County, New Mexico

Los Alamos County is a mid-size town in New Mexico, with 19,374 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates. The median age here is 41.1 years against 39.1 nationally, a slightly older profile than the country as a whole. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.

Households in Los Alamos County earn a median of $143,188 a year, 82.3% above the national figure of $78,538. Median household income counts every pre-tax dollar arriving at an address — wages, self-employment, Social Security, pensions, interest and public assistance — for everyone living there, so multi-earner households pull the figure up even where individual pay is modest. Poverty reaches 2.9% of residents here, less than half the 12.4% national rate.

The typical owner-occupied home in Los Alamos County is valued at $452,500, 49.1% above the national figure, while median gross rent runs $1,308 a month, 7% below the national figure, or roughly $15,696 across a full year. A household on the local median income would put about 11% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 3.2×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 74.5% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. Gross rent folds in the utilities a tenant pays separately, so it is closer to the real monthly outlay than a headline rent figure.

Every value on this page is published directly by the Census for this area — nothing is modelled or interpolated. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.