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County ProfileNM

Union County

Population: 4,079 · 8 ZIP codes

Demographics

Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.

People
Total population
4,079
People
Median age
42.6
Housing
Total households
1,438
Income
Median household income
$46,694
Housing
Total housing units
2,101
Employment
Employment rate
41.4%
Education
Bachelor’s degree or higher
18.4%
Healthcare
Insured population
89.6%
County details
Local time 23:52:56(MT)
NameUnion
Total ZIP codes8total
ZIP codes (by type)
8 Standard
Area code575
TimezoneMountain Time (MT)
Coordinates36.4880853, -103.4757229
Land area3,825.1 sq miles(9,906.8 km²)

Map of Union county, New Mexico with ZIP codes

Map of Union County, New Mexico and ZIP codes

Cities and Communities in Union County

Compare the largest cities in Union County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.

CityPopulation
Median incomeHousehold
ZIP codes
Clayton2,643$34,5001ZIPs
Sedan1341ZIPs
Des Moines117$63,8641ZIPs
Amistad921ZIPs
Capulin61$34,4641ZIPs
Folsom511ZIPs
Gladstone431ZIPs
Grenville22$115,6251ZIPs

Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.

ZIP Codes in Union County

Review the most populated postal areas across Union County. Use the ranking below to compare resident density and demographic scales between the county's major zones.

ZIPCity
Median incomeHousehold
Population (ZIP)
88415Clayton$44,9523,194
88418Des Moines$77,813303
88419Folsom$96,250183
88436Sedan134
88424Grenville121
88410Amistad$36,04292
88414Capulin50
88422Gladstone$61,34643

Data Sources & Citations

The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:

  • United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
  • United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS