Harding County, New Mexico Genealogy

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United States Gotoarrow.png New Mexico Gotoarrow.png Harding County

Guide to Harding County, New Mexico ancestry, family history, and genealogy birth records, marriage records, death records, census records, and military records.


Harding County, New Mexico
Map of the U.S. highlighting New Mexico
Location of New Mexico in the U.S.
Founded March 4, 1921
County Seat Mosquero
Address County Courthouse
35 Pine Street
PO Box 1002
Mosquero, NM 87733-1002
Phone: 505.673.2301
Harding County Website

County Information

Harding County, New Mexico Record Dates

Beginning Dates for Major County Records
Birth Marriage Death Census Land Probate
1921 1930 1921 1921

County Courthouse

Harding County Courthouse
3rd & Pine; PO Box 1002
Mosquero, NM 87733-1002
Phone: 505.673.2301 

County Clerk has marriage, divorce, probate, court, and land records from 1921.[1]


Parent County

  • Up until 1821New 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.
  • From 1821 until 1846Mexico 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. Starting in 1846 United States forces occupied New Mexico during the Mexican-American War.
  • 1848 -  Land that became Harding County formally became a part of the United States when the Mexican-American War ended with ratification of the Treaty of Harding Hidalgo.
  • 1921--Harding County was created 4 March 1921 from Mora and Union counties.[1]


The county encompasses 2,138 square miles or 1,368,320 acres. 348,600 acres is State land, checker boarded throughout the county. Harding County is larger than either Delaware or Rhode Island but has less than one-half person per square mile. Only 26 of the nations' 3,142 counties have fewer people.

Ranching is the main industry. Most visible to visitors who venture off the beaten path into Harding County are the county's two villages. Otherwise, its miles and miles of ranchland for the some 50,000 beef cattle raised here each year. The county is Canadian River Canyon country to the west, high-plains prairie on the east. In the northern part of the county lies the Kiowa National Grasslands which contains 70,500 acres.[2]

Boundary Changes

For animated maps illustrating New Mexico County boundary changes, "Rotating Formation New Mexico County Boundary Maps" (1845-1981) may be viewed for free at the MapofUS.org website.

Record Loss

There is no known history of courthouse disasters in this county.


Populated Places[3]

  • Mills
  • Mosquero (county seat)
  • Roy
  • Solano

Neighboring Counties



Tombstone Transcriptions Online Tombstone Transcriptions in Print List of Cemeteries in the county
Findagrave.com Family History Library Findagrave.com
NMGenWeb WorldCat Billion Graves
NMGenWeb Archives
Tombstone Project
NM Interment
Billion Graves
See New Mexico Cemeteries for more information.
Search by Cemetery Name

Alamosa Cemetery, Armenta Plaza Cemetery, Bryantine Cemetery, Bueyeros Cemetery, Calvert Cemetery, Cejita Cemetery, David Cemetery, Garcia Cemetery, Hartley Ranch Cemetery, Immaculate Conception Catholic Church Cemetery, Johnson Cemetery, Kelly Cemetery, Maytum Cemetery, Mestenito Cemetery, Mills Cemetery, Mitchell Ranch Cemetery, Mofax Cemetery, Mosquero Cemetery, Rosebud Cemetery, Roy Cemetery, Saint Joseph Cemetery, Solano Cemetery, Trujillo Cemetery, Vigil Cemetery

Search by Location

Alamitos, Bates, Bueyeros, Gallegos, Mills, Mosquero, Roy, Solano,


Historical populations
Census Pop.  %±
1930 4,421
1940 4,374 −1.1%
1950 3,013 −31.1%
1960 1,874 −37.8%
1970 1,348 −28.1%
1980 1,090 −19.1%
1990 987 −9.4%
2000 810 −17.9%
2010 695 −14.2%
Source: "Wikipedia.org".
State Census Records
Federal Census Records

Federal Censuses were taken for New Mexico starting in 1850. For links to Federal census indexes, see New Mexico Census.


Church records and the information they provide vary significantly depending on the denomination and the record keeper. They may contain information about members of the congregation, such as age, date of baptism, christening, or birth; marriage information and maiden names; and death date. For general information about New Mexico denominations, view the New Mexico Church Records wiki page.



Land and property records can place an ancestor in a particular location, provide economic information, and reveal family relationships. Land records include: deeds, abstracts and indexes, mortgages, leases, grants and land patents.

See New Mexico Land and Property for additional information about early New Mexico land grants. After land was transferred to private ownership, subsequent transactions were usually recorded at the county courthouse and where records are currently housed.

Online Land Records

Local Histories

Local histories are available for Harding County, New Mexico Genealogy. County histories may include biographies, church, school and government history, and military information. For more information about local histories, see the wiki page section New Mexico Local Histories.




Revolutionary War
Civil War
World War I
World War II



Online Probate Records

Since statehood in 1912, probate matters have been under the jurisdiction of probate courts in each county. Records of guardianship and adoption have usually been transferred to the district courts. In 1953 the district courts were given concurrent jurisdiction with the probate court over all probate matters in each county.

See the wiki page New Mexico Probate Records for information about how to find earlier probate records.

The Family History Library does not have copies of the New Mexico county probate records. They are available at each county courthouse. You can obtain copies by contacting the county clerk.

Content: Probate Records may give the decedent's date of death, names of his or her spouse, children, parents, siblings, in-laws, neighbors, associates, relatives, and their place of residence.

Record types: Wills, estates, guardianships, naturalizations, marriage, and adoption.


New Mexico tax records complement land records and can be used to supplement the years between censuses. There may be gaps of several years in the tax records of some counties. For more information, see the Wiki page New Mexico Taxation.

Vital Records


Societies and Libraries

Family History Centers

Family History Centers provide one-on-one assistance and free access to premium genealogical websites. In addition, many centers have free how-to genealogy classes. See Family History Center for more information. Search the online FHC directory for a nearby family history center.



  1. 1.0 1.1 Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), Harding County, New Mexico page 473, At various libraries (WorldCat); FHL Book 973 D27e 2002.
  2. http://www.hardingcounty.org/live/attractions/harding-county-today/ accessed 09/29/2016
  3. https://en.wikipedia.org/wiki/Harding_County,_New_Mexico#Communities