About Union County, New Mexico
County Seat: Clayton, New Mexico
Population: 5,929 (as of 2019)
Union County History & Notable Events
* 1848: The Treaty of Guadalupe Hidalgo is signed, ending the Mexican-American War and ceding the area that is now Union County to the United States.
* 1884: The Union County Courthouse is built in Clayton, New Mexico.
* 1887: The first post office in Union County is established in Clayton.
* 1895: The Union County Free Library is established in Clayton.
* 1901: The Union County Fair is held for the first time in Clayton.
Emergency & Safety
EMERGENCY: 911
Sheriff Non-Emergency
Emergency Alert System
FEMA Disaster Resources
DHS Threat Level LOW
Frequently Asked Questions
How do I request public records in Union County?
To request public records in Union County, New Mexico, contact the Union County Clerk-Recorder office by mail, in person, or through the online request portal. Under New Mexico public records law, agencies must respond within the required timeframe.
What court handles cases in Union County and where is it located?
Union County New Mexico court jurisdiction is located in Clayton, New Mexico. The court has jurisdiction over civil and criminal cases, including felonies, misdemeanors, and traffic violations. The court also has jurisdiction over small claims, probate, and juvenile matters. The address is: Union County Courthouse, 200 South First Street, Clayton, NM 88415. Union County New Mexico Court is located at 100 East Broadway, Clayton, NM 88415. It is a district court that serves Union County, New Mexico. It is a court of limited jurisdiction, handling civil and criminal cases, including traffic violations, small claims, probate, juvenile, and domestic relations matters.
How do I obtain vital records in Union County?
Vital records — birth certificates, death certificates, marriage licenses, and divorce decrees — are maintained by the Union County Clerk-Recorder. Certified copies can be requested in person, by mail, or online. State law determines which records are public and which require proof of relationship.
Where can I find property and tax records for Union County?
Property records in Union County are maintained by the county Assessor and Recorder office. You can search property ownership, tax assessments, deed transfers, and mortgage liens online through the county portal. The Treasurer-Tax Collector manages property tax payments.
Official Government Sources
Union County Public Records Directory
All links go directly to official Union government websites.
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