Luna County, New Mexico

A county in New Mexico, ranked 18 of 33 by population.

CountyFIPS 35029

Within New Mexico
Luna County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data. The dot marks Deming, the county seat, located via the 2025 Census Gazetteer.

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Population
25,407
-45 (-0.2%) since 2020
Land area
2,965
square miles. A further 0.0% of the total area is water
Population density
8.6
people per square mile, computed rather than published
County seat
Deming
Seat of county government.
Established
1901
124 years ago
Largest city
Deming city
Population 14,944.

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

Satellite view

Aerial imagery of Luna County with its boundary drawn on top. A map shows you the shape; this shows you what is inside it, and which side of the line a place falls on.

Aerial view of Luna County, New Mexico from the USGS National Map, with its boundary outlined
Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 772 by 800 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

Where Luna County ranks

Position among the 33 counties of New Mexico, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn New MexicoNationally
Population25,40718th of 331,610th of 3,144
Land area2,965 sq mi22nd of 33174th of 3,144
Population density8.6 per sq mi15th of 332,619th of 3,144
Median household income$36,41932nd of 323,108th of 3,143

Full data for Luna County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population25,407Vintage 2025 Population Estimates
Population in 202025,452Vintage 2025 Population Estimates
2020 estimates base?25,419Vintage 2025 Population Estimates
Land area2,965 sq mi2025 Gazetteer Files
Water area0.17 sq mi2025 Gazetteer Files
Total area2,965 sq mi2025 Gazetteer Files
Population density?8.6 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$36,419American Community Survey 2020-2024 5-Year Estimates
Median home value$128,000American Community Survey 2020-2024 5-Year Estimates
Median age36.3American Community Survey 2020-2024 5-Year Estimates
Households9,223American Community Survey 2020-2024 5-Year Estimates
Housing units11,621American Community Survey 2020-2024 5-Year Estimates

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026. Population density is computed here, not published: it divides the Vintage 2025 population estimate by the 2025 Gazetteer land area, which are two different Census products. Retrieved 30 August 2026.

How the population changed

The Census Bureau publishes the components behind an estimate, not just the total. For the year to July 2025:

Births minus deaths
+16
372 births, 356 deaths
Net migration
-230
More people moved out than moved in.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 4 areas bordering Luna County

Ordered by the length of the border actually shared, which the Census Bureau publishes in its county adjacency file and which no other county reference presents.

Bordering areaStateShared borderPopulation
Grant CountyNew Mexico88 mi27,252
Doña Ana CountyNew Mexico57 mi229,091
Sierra CountyNew Mexico18 mi11,395
Hidalgo CountyNew Mexico6.1 mi3,929

Source: US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. Retrieved 30 August 2026.

All 33 counties of New Mexico

Open the interactive New Mexico county map, or jump straight to any of them.

Data on this page last rebuilt 30 August 2026. How these figures are produced.