County Maps US

Quay County, New Mexico

A county in New Mexico, ranked 26 of 33 by population.

CountyFIPS 35037

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

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Population
8,454
-260 (-3.0%) since 2020
Land area
2,874
square miles. A further 0.2% of the total area is water
Population density
2.9
people per square mile, computed rather than published
County seat
Tucumcari
Seat of county government.
Established
1887
138 years ago
Largest city
Tucumcari city
Population 5,082.

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 Quay 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 Quay 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 645 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 Quay 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
Population8,45426th of 332,544th of 3,144
Land area2,874 sq mi23rd of 33180th of 3,144
Population density2.9 per sq mi24th of 332,908th of 3,144
Median household income$41,94629th of 323,029th of 3,143

Full data for Quay County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population8,454Vintage 2025 Population Estimates
Population in 20208,714Vintage 2025 Population Estimates
2020 estimates base?8,744Vintage 2025 Population Estimates
Land area2,874 sq mi2025 Gazetteer Files
Water area7.2 sq mi2025 Gazetteer Files
Total area2,881 sq mi2025 Gazetteer Files
Population density?2.9 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$41,946American Community Survey 2020-2024 5-Year Estimates
Median home value$87,200American Community Survey 2020-2024 5-Year Estimates
Median age48.9American Community Survey 2020-2024 5-Year Estimates
Households4,389American Community Survey 2020-2024 5-Year Estimates
Housing units5,536American 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
-36
71 births, 107 deaths
Net migration
-51
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 10 areas bordering Quay 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
Curry CountyNew Mexico64 mi46,655
San Miguel CountyNew Mexico42 mi26,260
Harding CountyNew Mexico39 mi617
Oldham CountyTexas30 mi1,783
Guadalupe CountyNew Mexico25 mi4,343
De Baca CountyNew Mexico22 mi1,647
Union CountyNew Mexico19 mi3,844
Deaf Smith CountyTexas16 mi18,626
Roosevelt CountyNew Mexico12 mi18,615
Hartley CountyTexas8.1 mi4,904

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.