Union County District Court Jurisdiction
New Mexico District Courts are general-jurisdiction trial courts. The state judiciary describes them as courts with jury trials and authority over tort, contract, real-property, estate, domestic-relations, mental-health, administrative-agency appeal, lower-court appeal, misdemeanor appeal, and juvenile matters. For Union County, District Court also handles formal or contested probate matters when the limited Probate Court route is not enough.
Union County belongs to the Eighth Judicial District with Colfax and Taos Counties. The district's site links court hearing schedules, jury duty, Case Lookup, self-representation, forms, and fines and fees. The local District Court contact is the Union County Courthouse at 100 Court St., Suite 5 in Clayton. Court hours are Monday through Friday, 8 a.m. to 4 p.m., open through lunch.
Union County District Court
Union County Courthouse
100 Court St., Suite 5
Clayton, NM 88415
575-374-9577
Fax: 575-374-2089
Monday-Friday, 8 a.m.-4 p.m., open through lunch
Union County District Court Table
Union County court records are spread across District Court, Magistrate Court, Municipal Court, Probate Court, and the County Clerk. These are near each other in Clayton, but they do not keep the same records. The table uses the official addresses and caveats from the research. The Magistrate Court address has a conflict between two official pages, so litigants should verify the courtroom before appearing.
| Court or office | Type | Address | Phone |
|---|---|---|---|
| Eighth Judicial District Court, Union County | General jurisdiction: civil, criminal, domestic, juvenile, formal probate, appeals | 100 Court St., Suite 5, Clayton, NM 88415 | 575-374-9577 |
| Clayton Magistrate Court / Union County Magistrate Court | Limited civil, landlord-tenant, misdemeanor, DWI/DUI, traffic, felony preliminary hearings | Eighth District lists 100 Court Street, Suite 5; facilities inventory lists 836 Main St. | 575-374-9472 |
| Clayton Municipal Court | Petty misdemeanors, DWI/DUI, traffic, municipal ordinances | 124 North Front St, Clayton, NM 88415 | 575-207-0445 |
| Union County Probate Court | Informal probate and uncontested estates | 200 Court Street, Clayton, NM 88415 | 575-374-9491 Ext. 2 |
| Union County Clerk | Marriage, land records, county records, elections, informal probate clerk function | 200 Court Street; PO Box 430, Clayton, NM 88415 | 575-374-9491 Ext. 2 |
Union County District Court vs Lower Courts
District Court is not the first stop for every Union County legal matter. Magistrate Court and Municipal Court handle many lower-level cases, especially traffic, misdemeanor, DWI/DUI, ordinance, landlord-tenant, and limited civil issues. Probate Court handles informal estate matters without jury trials, while contested estate cases move to District Court. The court named on a citation, docket, notice, or case number often tells the user where to search.
| Point | District Court | Magistrate Court | Municipal Court | Probate Court |
|---|---|---|---|---|
| Civil scope | General civil jurisdiction, real property, tort, contract, appeals | Tort, contract, and landlord-tenant matters from $0 to $10,000 | Municipal ordinance matters | Informal estate matters only |
| Criminal scope | Felonies, serious criminal filings, lower-court appeals | Misdemeanors, DWI/DUI, felony preliminary hearings | Petty misdemeanors, DWI/DUI, traffic, ordinance violations | No criminal jurisdiction |
| Family and probate | Domestic relations, formal or contested probate | No general domestic-relations jurisdiction | No divorce or formal probate jurisdiction | Informal probate and estates |
| Jury trials | Yes | Yes | No jury trials | No jury trials |
| Main public search | New Mexico Case Lookup and re:SearchNM where eligible | Case Lookup and Eighth District docket pages | Municipal court data is limited in statewide systems | Union County Official Records Search for informal probate |
Union County District Case Flow
District Court case flow depends on case type. A felony matter may begin with law enforcement and a Magistrate Court preliminary stage before it becomes a District Court prosecution. A civil case begins with a complaint or petition, service, an answer, motions, hearings, judgment, and any appeal. A divorce begins as a domestic-relations case and may include temporary orders, parenting issues, property terms, and a final decree.
Criminal flow: Arrest or citation › Magistrate first appearance or preliminary hearing › indictment or information › District Court arraignment › pretrial hearings › plea or trial › disposition › sentencing › appeal.
Civil flow: Complaint or petition filed › service › answer › motions › hearing or trial › judgment or order › post-judgment action › appeal.
District Court case numbers in Union County examples include formats such as D-818-CV-2026-00010 and D-818-DM-2026-00002. The prefix points to District Court, the middle code identifies the case type, and the year and sequence follow. Magistrate Court examples use a different prefix, such as M-58-TR for traffic matters.
Search Union County District Court
Public District Court case information starts with New Mexico Case Lookup. The disclaimer says the system is for viewing individual electronic court records and prohibits attempts to download multiple records in one transaction. It cites NMSA 1978, Section 14-3-15.1 for data-use limits. Public Case Lookup does not provide documents, and the New Mexico Courts public access page says personal identifying information such as Social Security numbers and address information is not available for security purposes.
Actual document access uses a different path. re:SearchNM provides registered-user access to Odyssey court case information and documents based on user profile and case type. Attorneys with a New Mexico Supreme Court CAID number can self-register for Attorney of Record or Tier 1 access, while staff and justice partners follow separate application paths. Older records, especially pre-1997 records, and missing records can require the New Mexico Courts IPRA request portal or direct District Court Clerk contact.
PACER provides a federal CM/ECF lookup source, but it is separate from Union County District Court records.
That federal system is useful only when the case belongs to the U.S. District Court, not the New Mexico District Court in Clayton.
Union County District Court Context
The Eighth Judicial District links Union County with Colfax and Taos Counties. Shared district resources include judges, jury duty information, hearing schedules, self-representation materials, forms, fines and fees links, and planning for programs such as pretrial services. That regional structure means a Union County District Court case may involve district-wide administration even though the courthouse counter is in Clayton.
Lower-court access remains local. The Eighth Judicial District maintains separate public docket pages for Union County District Court and Union County Magistrate Court. Those docket pages show upcoming hearings for the current day and near future, with fields such as date, time, case number, case caption, judge, courtroom, and hearing type. They are hearing schedules, not full case-file databases.
Note: A docket entry can confirm a hearing, but it does not replace the full District Court record or a certified copy from the clerk.
Federal Court Records Distinction
Union County is also within the federal District of New Mexico, but federal cases are not filed in Union County District Court. The U.S. District Court for the District of New Mexico serves the entire state and has federal courthouses in Albuquerque, Las Cruces, Roswell, and Santa Fe. Federal criminal cases, federal civil-rights cases, federal-question suits, diversity cases, habeas proceedings, tax matters, and federal agency disputes use the federal court system.
Bankruptcy is also federal. Union County residents and businesses with bankruptcy matters use the U.S. Bankruptcy Court for the District of New Mexico, not the Union County District Court. Federal appeals from the U.S. District Court for the District of New Mexico go to the U.S. Court of Appeals for the Tenth Circuit. Federal prisoners are searched through federal custody systems, not through the county courthouse.
The U.S. District Court for the District of New Mexico is the official federal trial court serving the state.
Its records are separate from state District Court records kept in the Eighth Judicial District.
The U.S. Bankruptcy Court is the federal bankruptcy forum for Union County residents and businesses.
Bankruptcy case searches should not be routed to the Union County District Court Clerk.
The Tenth Circuit is the appellate court for federal cases from New Mexico.
That federal appellate path is different from New Mexico Court of Appeals review of state trial-court cases.
Union County Courthouse History
Union County's courthouse history is unusually concrete. The National Park Service National Register nomination says the Union County Courthouse was built in 1909 for $30,000 to replace an 1894 courthouse that had been severely damaged by a tornado. The contractors were J.W. Wooten and N.V. Bundy, and the architects were D.P. Kaufman and Son Architects of Amarillo, Texas. That history connects today's court address with the county's early twentieth-century courthouse replacement after a severe weather event.
Union County itself sits in northeastern New Mexico, with Clayton as the county seat and a rural service area near the Colorado, Oklahoma, and Texas borders. Modern District Court administration ties the county to Colfax and Taos Counties through the Eighth Judicial District, but the courthouse remains the local courtroom and clerk access point for higher-level state cases in Union County.
The New Mexico Historic Preservation Division registers page is an official state source tied to historic resource documentation.
Historic-register context supports the courthouse history without changing the current District Court record request path.