ZIP code 88431: San Miguel County, NM
ZIP code 88431 is in San Miguel County (51%) and Guadalupe County (49%), New Mexico, outside any city or Census-designated place. It is in New Mexico's 3rd congressional district (51%) and New Mexico's 1st congressional district (49%). Its state senate district is State Senate District 8; its state house districts are State House District 63 (49%), State House District 70 (30%) and State House District 67 (22%).
See it on the mapAll of New Mexico
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| San Miguel County | 51% |
| Guadalupe County | 49% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Santa Rosa CCD | 49% |
| Trementina CCD | 30% |
| Conchas Dam CCD | 22% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| New Mexico's 3rd congressional district (NM-03) | 51% |
| New Mexico's 1st congressional district (NM-01) | 49% |
This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (NM-03) | Teresa Leger Fernandez (D) | 202-225-6190 | 51% |
| U.S. Representative (NM-01) | Melanie A. Stansbury (D) | 202-225-6316 | 49% |
| U.S. Senator | Ben Ray Luján (D) | 202-224-6621 · contact form | statewide |
| U.S. Senator | Martin Heinrich (D) | 202-224-5521 · contact form | statewide |
| State Senator (State Senate District 8) | Pete Campos (Democratic) | 100% | |
| State Representative (State House District 63) | Martin Zamora (R) | 575-309-2334 | 49% |
| State Representative (State House District 70) | Anita Gonzales (Democratic) | 30% | |
| State Representative (State House District 67) | Jack Chatfield (R) | 22% |
Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).
Local government
- San Miguel County laws: search for the San Miguel County, New Mexico code of ordinances
- Guadalupe County website: https://www.guadalupecountynm.org/
- Guadalupe County laws: search for the Guadalupe County, New Mexico code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 8 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 63 | 49% |
| State House District 70 | 30% |
| State House District 67 | 22% |
Voting precincts
3 voting precincts overlap ZIP 88431. Map them, with each precinct's share of the ZIP's residents.
Get this in your AI agent
Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:zcta:88431")
ZIP 88431 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.