Dona Ana County, New Mexico Genealogy
- 1 County Courthouse
- 2 Quick Facts
- 3 Places/Localities
- 4 Resources
- 5 Societies, Libraries and Museums
- 6 Websites
- 7 References
County CourthouseDoña Ana County Courthouse
180 West Amador;
Las Cruces, NM 88001
County Clerk has marriage and probate records from 1870 and land records from 1801; Clerk District Court has divorce and court records.
- Until 1821 - New Spain controlled land that later would become New Mexico and Arizona. Some records of early settlers may have been sent to an archives in Seville, Spain, or to archives in Mexico City.
- In 1821 - Mexico had jurisdiction over the land that later would become New Mexico and Arizona. Some records of this period may have been sent to archives in Mexico City. United States forces occupied New Mexico starting in 1846 during the Mexican-American War.
- 1848 - Land that became Doña Ana County formally became a part of the United States when the Mexican-American War ended with the signing of the Treaty of Guadalupe Hidalgo.
- 9 January 1852 - Doña Ana County was created from unorganized territory. Doña Ana county extended west onto land in present day Arizona.   Residents living far from the county seat, probably didn't send many records to the county offices.
- 3 February 1855 - Doña Ana County gained all of the Gadsden Purchase land from Mexico. This extended Dona Ana county west to the Baja California border, including land south of the Gila River in present day Arizona.
- 24 February 1863 Arizona was created from the western half of New Mexico Territory. Dona Ana county was reduced in size to the portion that was still in New Mexico Territory.
- 30 January 1868 - DOÑA ANA county lost land to creation of GRANT county. 
- 3 April 1884 - DOÑA ANA county lost land to creation of SIERRA county. 
- 30 January 1899 - DOÑA ANA county lost land to creation of OTERO county. 
- 16 March 1901 - DOÑA ANA county lost land to creation of LUNA county. 
- Cemeteries in Dona Ana County at Find A Grave
For tips on accessing Dona Ana County, New Mexico Genealogy census records online, see: New Mexico Census.
Church History and Records
LDS Ward and Branch Records
- Las Cruces
Dona Ana county online record search You do not need to Register, Sign on as Guest. Some records found online go back to the 1950's. But most are from the 1970 to the present. If searching for an older record, you may have to visit the County Clerks Office.
Societies, Libraries and Museums
Family History Centers
- Introduction to LDS Family History Centers
- Las Cruces New Mexico Family History Center
- Las Cruces, New Mexico
- Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), De Baca County, New Mexico page 473, At various libraries (WorldCat); FHL Book 973 D27e 2002.
- N.M. Terr. Laws 1851, 1st assy., 2d sess. /p. 291
- William Thorndale, and William Dollarhide, Map Guide to the U.S. Federal Censuses, 1790-1920 (Baltimore: Genealogical Publishing, 1987), 26. At various libraries (WorldCat); FHL Book 973 X2th.
- Original Counties of New Mexico Territory (map) at http://www.nmgs.org/Graphics/nmcoun-orig.jpg (accessed 9 August 2011).
- N.M. Terr. Laws 1854, 4th assy. /p. 57
- Wikipedia contributors, "1st Arizona Territorial Legislature" in Wikipedia: the Free Encyclopedia at http://en.wikipedia.org/wiki/1st_Arizona_Territorial_Legislature (accessed 8 August 2011).
- U.S. Stat., vol. 12, pp. 664-665; Van Zandt, 165
- N.M. Terr. Laws 1867-1868, 17th assy., ch. 20/p. 88
- N.M. Terr. Laws 1884, 26th assy., ch. 109/pp. 223-225
- N.M. Terr. Laws 1899, 33d assy., ch. 3/pp. 21-30
- N.M. Terr. Laws 1901, 34th assy., ch. 38/pp. 70-75