Union County, New Mexico
Located in New Mexico, Union County has a population of 4,013 residents and a median age of 42.6 years, making it the #2,964 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 16.6%. The median home value is $122,700, and the median household income is $46,694, which is 38% below the national median.
Demographics
Union County has a population of 4,013, making it the #2,964 most populous county in the US. The median age is 42.6 years, which is 9.5% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Union County is $46,694, ranking #2,911 out of 3,222 counties — 37.9% below the national median. The poverty rate is 16.6% and unemployment stands at 6.2%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Union County is $122,700 (-56.5% vs national). Renters pay a median of $683/mo and the homeownership rate is 72.4%.
Median Home Value Trend
Rankings →Household Type
Education
In Union County, 18.4% of adults age 25+ hold a bachelor's degree or higher, which is 45.5% below the national average, ranking #2,283 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Union County is 73.8 years. 24.8% of adults report poor or fair health and 12.1% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
20.7% of adults in Union County smoke , 35.4% are obese , and 17.8% report excessive drinking.
Adult Smoking Trend
Safety
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Families & Children
25.4% of children in Union County live in poverty . The teen birth rate is 25.4 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Union County is 56.0%. The mean commute time is 17.9 min, which is 35.0% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Union County voted Republican with a margin of 52.2%. The vote was 22.7% Dem / 74.9% Rep. Compared to 2020, the margin shifted +4.0 toward Democrats .
Vote Share Over Time
About Union County, New Mexico
Union County, New Mexico has a total population of 4,013, making it the 2,964th most populous county in the United States. The median age in Union County is 42.6 years, which is 9.5% above the national median of 38.9 years.
The median household income in Union County is $46,694, which ranks #2,911 of 3,222 counties nationwide. This is 37.9% below the national median of $75,149. The poverty rate is 16.6%, higher than the national rate of 12.6%. The unemployment rate stands at 6.2%.
The median home value in Union County is $122,700, 56.5% below the national median. Renters in Union County pay a median gross rent of $683 per month. The homeownership rate is 72.4%, compared to the national rate of 64.4%.
In Union County, 18.4% of residents aged 25 and older hold a bachelor's degree or higher, 45.5% below the national average of 33.7%. Health insurance coverage stands at 89.6% of the population. The average commute time for workers is 17.9 min.
Union County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 53.3% of the population, followed by Hispanic or Latino (40.1%) and Two or More Races (2.8%).
All data for Union County, New Mexico comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.