County Maps US

Grant County, New Mexico

A county in New Mexico, ranked 15 of 33 by population.

CountyFIPS 35017

Within New Mexico
Grant County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data.

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Population
27,252
-951 (-3.4%) since 2020
Land area
3,961
square miles. A further 0.1% of the total area is water
Population density
6.9
people per square mile, computed rather than published
County seat
Silver City
Seat of county government.
Established
1868
157 years ago
Largest city
Silver City town
Population 9,284.

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 Grant 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 Grant 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 730 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 Grant 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
Population27,25215th of 331,536th of 3,144
Land area3,961 sq mi14th of 33124th of 3,144
Population density6.9 per sq mi17th of 332,692nd of 3,144
Median household income$44,95827th of 322,963rd of 3,143

Full data for Grant County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population27,252Vintage 2025 Population Estimates
Population in 202028,203Vintage 2025 Population Estimates
2020 estimates base?28,189Vintage 2025 Population Estimates
Land area3,961 sq mi2025 Gazetteer Files
Water area5.9 sq mi2025 Gazetteer Files
Total area3,967 sq mi2025 Gazetteer Files
Population density?6.9 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$44,958American Community Survey 2020-2024 5-Year Estimates
Median home value$175,600American Community Survey 2020-2024 5-Year Estimates
Median age49.5American Community Survey 2020-2024 5-Year Estimates
Households11,295American Community Survey 2020-2024 5-Year Estimates
Housing units14,755American 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
-151
244 births, 395 deaths
Net migration
-87
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 5 areas bordering Grant 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
Hidalgo CountyNew Mexico112 mi3,929
Luna CountyNew Mexico88 mi25,407
Sierra CountyNew Mexico70 mi11,395
Catron CountyNew Mexico61 mi3,827
Greenlee CountyArizona30 mi9,312

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.