| Name | Union County |
| State | New Mexico |
| FIPS Code | 35059 |
| County Seat | Clayton |
| Timezone | Mountain Daylight Time (MDT) |
| Population (2024) | 3,972 |
| Population Growth Rate(2020-2024) | -2.82% |
| Majority Ethnicity | White 60.66% |
| Public School Majority Ethnicity | Hispanic 52% |
| Partisan Voting Index | Strongly Republican:+28 |
| Unemployment Rate (May 2026) | 4.5% |
| Sales Tax Rate (2025) | 5.82% |
| Area Code(s) | 575 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 60.66% |
| African American | 0.84% |
| Hispanic | 34.65% |
| Asian | 0% |
| Native American | 3.85% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 44.38% |
| African American | 2.13% |
| Hispanic | 51.94% |
| Asian | 0.39% |
| Native American | 0.97% |
| Hawaiin/Pacific Islander | 0% |