Union County, New Mexico
Historic newspapers, landmarks, and county history layers for genealogists and local historians.
At a glance
SummaryThe National Register of Historic Places includes 12 listed properties in the county, first listed in 1966; 1 is also National Historic Landmark. Most listings are in or near Clayton, Amistad, Capulin.
Summary generated automatically from the source data on this page.
Newspapers
Library of CongressNewspaper directory data for New Mexico is not yet loaded on this site. Browse Union titles at the Library of Congress.
National Register of Historic Places
NPS NRHP3 of 12 listings mapped; some locations are restricted by NPS to protect sensitive sites.
12 listed properties
| Property | City | Listed |
|---|---|---|
| Amistad Gymnasium | Amistad | 1996 |
| Capulin Volcano National Monument Historic District | Capulin | 2025 |
| Clayton Public Library | Clayton | 2002 |
| Clayton Public Schools Historic District | Clayton | 1996 |
| Eklund Hotel | Clayton | 2002 |
| Folsom Hotel | Folsom | 1987 |
| Gate, Fence and Hollow Tree Shelter Designed by Dionicio Rodriguez | Clayton | 2008 |
| Goodson Memorial School | Seneca | 2003 |
| Luna Theater | Clayton | 2007 |
| Rabbit Ears NHL | Clayton | 1966 |
| Santa Fe Trail-Magazine Ruts Segment | Sofia | 2013 |
| Union County Courthouse | Clayton | 1987 |
Source: National Park Service, National Register of Historic Places. Property links open NRHP nomination files at the National Archives.
County formation
Newberry AHCBUnion was formed in 1894 (1894-01-01) from unknown / original county.
UNION created by New Mexico Terr. from COLFAX, MORA, and SAN MIGUEL.
Source: Newberry Library, Atlas of Historical County Boundaries.
Population by decade
CensusUnion County population from 1900 to 2020 (Census historical series).
| 1900 | 1920 | 1940 | 1950 | 1960 | 1980 | 2000 | 2020 |
|---|---|---|---|---|---|---|---|
| 4,528 | 16,680 | 9,095 | 7,372 | 6,068 | 4,725 | 4,174 | 4,079 |
Sources: U.S. Census Bureau historical county population (Forstall 1790–1990) and public-domain / CC0 county population series through 2020.
National Park Service sites nearby
NPSPark units within about 40 km of the county centroid (from NPS Public POIs; no API key).
| Site | Type | Dist. |
|---|---|---|
| Capulin Volcano National Monument | Park unit | 55.1 km |
Source: NPS National Datasets / Public POIs. The NPS Developer API requires a free key and was not used.
Cemeteries & historical places
USGS GNIS48 cemeteries and 7 historical populated places (ghost towns / former settlements) recorded in USGS GNIS for this county.
Cemeteries — 48 of 48 listed
| Name |
|---|
| Amistad Cemetery |
| Antioch Cemetery |
| Atencio Cemetery |
| Baker Cemetery |
| Brown Cemetery |
| Centerville Cemetery |
| Clayton Cemetery |
| Corrumpa Cemetery |
| County Cemetery |
| Creeds Chapel Cemetery |
| Cuates Cemetery |
| Dempsey Cemetery |
| Des Moines Catholic Cemetery |
| Des Moines Cemetery |
| Drew Cemetery |
| Drew Cemetery |
| Emery Gap Cemetery |
| Fairview Cemetery |
| Folsom Cemetery |
| Garcia Plaza Cemetery |
| Gladstone Cemetery |
| Grandview Cemetery |
| Grenville Cemetery |
| Hardesty Cemetery |
| Hayden Cemetery |
| Holy Trinity Catholic Cemetery |
| Independent Order of Odd Fellows Cemetery |
| La Morada Cemetery |
| Martinez Cemetery |
| Moses Cemetery |
| Ojo Bonito Cemetery |
| Ojo del Pinaveta Cemetery |
| Otto Cemetery |
| Overbay Cemetery |
| Padilla Cemetery |
| Pennington Cemetery |
| Pleasant Hill Cemetery |
| Puertocito Cemetery |
| Reeves Cemetery |
| Rinker Cemetery |
| Rivera Cemetery |
| San Juan Batista Church Cemetery |
| Sanchez Cemetery |
| Sedan Cemetery |
| Shaha Cemetery |
| Sofia Cemetery |
| Thomas Cemetery |
| Wanette Cemetery |
Historical populated places — 7 of 7
| Name |
|---|
| Corrumpa |
| Cuates |
| Emery Gap |
| Garcia |
| Madison |
| Tate |
| Willow Springs |
Source: USGS Geographic Names Information System (public domain). Cemeteries from the 2021 NationalFile archive; historical places from GNIS HistoricalFeatures topical extract.
Historical markers
HMdb linkMarker text and photos from the Historical Marker Database (HMdb) are not embedded here. HMdb allows non-commercial reuse with attribution, but commercial/compensated use needs written permission; this is a commercial site, so we only link out.
Search HMdb for Union County, New Mexico
Terms: hmdb.org/copyright.asp. Linking is encouraged by HMdb.