Union County, New Mexico
Union County: county in New Mexico, United States.
About
Union County is a county located in the U.S. state of New Mexico. As of the 2010 census, the population was 4,549. After 10 years in 2020 county had an estimated population of 4,026 inhabitants. Its county seat is Clayton. The county was created 132 years ago in 1893.
County Snapshot
Union County at a glance
Union County currently has 1 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
1
These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.
New Mexico counties
33
Open related pagesLargest city
ClaytonPopulation 2,660
Top linked places
Quick Facts about Union County
| Population | 4,026 (2020) |
| Country | United States of America |
| State | New Mexico (United States) |
| Different from | Union County, Union County, Union County, Union Parish, Union County, Union County, Union County, Union County, Union County, Union County, Union County, Union County, Union County, Union County, Union County, Union County, Union County |
| Area | 9922 km2 |
| Water as percent of area | 0.2% |
| Land as percent of area | 99.8% |
| Latitude & Longitude | 36.4818,-103.4710 |
| Capital | Clayton |
| Establishment | January 01, 1894 |
| Time Zone | America/Denver |
| Local time | 06:03:16 (23rd September 2026) |
| Population growth | -11.5% (2010-2020) |
| Weather | 54℉ Showers And Thunderstorms 7-days weather |
Geography
Union County is located at 36°28'54"N 103°28'16"W (36.4817600, -103.4709900). It has 8 neighbors: Baca County, Las Animas County, Colfax County, Harding County, Quay County, Cimarron County, Dallam County and Hartley County.
Union County map
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The largest city of Union County is Clayton with a population of 2,660. . See all Union County cities & populated places.
Union County Populated Places
Cities, towns, neighborhoods & other populated places in Union County.
| City Name | Population | Title |
|---|---|---|
| Clayton | 2,660 | Town in New Mexico |
Weather
Showers and thunderstorms. Cloudy, with a low around 54. South wind 10 to 15 mph. Chance of precipitation is 90%.
7-Day ForecastOfficial website of Union County
Official Website- Clayton
Demographics
According to census records, the population of Union County decreased by 11.5% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 4,549 | - | census |
| 2011 | 4,410 | -3.06% | estimation process |
| 2012 | 4,400 | -0.23% | estimation process |
| 2013 | 4,347 | -1.2% | estimation process |
| 2014 | 4,246 | -2.32% | estimation process |
| 2015 | 4,163 | -1.95% | estimation process |
| 2016 | 4,154 | -0.22% | estimation process |
| 2017 | 4,180 | 0.63% | estimation process |
| 2018 | 4,108 | -1.72% | estimation process |
| 2019 | 4,059 | -1.19% | estimation process |
| 2020 | 4,026 | -0.81% | estimation process |
Other places with the same name (16)
- Union County, New Jersey county in Oregon, United States. with a population of 555,394 people.
- Union County, North Carolina county in North Carolina, United States. with a population of 244,562 people.
- Union County, Ohio county in Ohio, United States. with a population of 60,021 people.
- Union County, Pennsylvania county in Pennsylvania, United States. with a population of 44,294 people.
- Union County, Arkansas county in Arkansas, United States. with a population of 38,219 people.
- Union County, Mississippi county in Mississippi, United States. with a population of 28,866 people.
- Union County, South Carolina county in South Carolina, United States. with a population of 26,991 people.
- Union County, Oregon county in Oregon, United States. with a population of 26,551 people.
- Union County, Georgia county in Georgia, United States. with a population of 25,358 people.
- Union County, Tennessee county in Tennessee, United States. with a population of 20,187 people.
- Union County, Illinois county in Illinois, United States. with a population of 16,498 people.
- Union County, South Dakota county in South Dakota, United States. with a population of 16,192 people.
- Union County, Florida county in Florida, United States. with a population of 15,182 people.
- Union County, Kentucky county in Kentucky, United States. with a population of 14,443 people.
- Union County, Iowa county in Iowa, United States. with a population of 12,157 people.
- Union County, Indiana county in Indiana, United States. with a population of 7,119 people.
New Mexico Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| Bernalillo County | 681,666 | County in New Mexico, United States |
| Albuquerque | 562,540 | The third most populous city in New Mexico and the center of the Albuquerque metropolitan area. |
| Doña Ana County | 221,262 | County in New Mexico, United States |
| Santa Fe County | 151,946 | County in New Mexico, United States |
| Sandoval County | 148,904 | County in New Mexico, United States |
| San Juan County | 123,312 | County in southeastern Utah, United States |
| Las Cruces | 105,096 | The second most populous city in New Mexico. |
| Rio Rancho | 99,885 | The second most populous city in Sandoval County, New Mexico. |
| Santa Fe | 84,996 | The capital of New Mexico. |
| Valencia County | 77,574 | County in New Mexico, United States |
| Lea County | 71,830 | County in New Mexico, United States |
| McKinley County | 70,824 | County in New Mexico, United States |
| Otero County | 67,967 | County in New Mexico, United States |
| Chaves County | 64,711 | County in New Mexico, United States |
| Eddy County | 58,418 | County in New Mexico, United States |
| Curry County | 48,793 | County in Oregon, United States |