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Where am ILOCATED

Rio Arriba County, New Mexico

Rio Arriba County, New Mexico, has 39,832 residents (July 2025 estimate). Its county seat is Tierra Amarilla. It uses Mountain Time and covers 5,861 sq mi (15,180 km²) of land.

AlbuquerqueLas CrucesRio Rancho
Rio Arriba County in New Mexico
Taos CountyEspañolaDulceDixon
Rio Arriba County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
39,832
Land area
5,861 sq mi (15,180 km²)
County seat or government
Tierra Amarilla
Time zone
Mountain TimeUTC-07:00 in January; UTC-06:00 in July
Median household income
$57,155 ± $4,325
Median home value
$243,700 ± $17,840
Median rent, with utilities
$740 ± $85
Homes lived in by their owners
80% ± 1.6 points
County type
County
Metro or micro area
Española, NM micro areaCentral county
Water area
35.3 sq mi (91.5 km²)
State
New Mexico
County code (FIPS)
35039
Coordinates (central point)
36.509669, -106.693983
Open this point in the location finder

These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in Rio Arriba County

Time zoneLocal time and UTC offsetNext clock change
Mountain TimeAmerica/DenverUTC-07:00 in January; UTC-06:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.

Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

  1. 8753218,948 people
  2. 870135,251 people
  3. 875283,756 people
  4. 875113,108 people
  5. 875662,684 people
  6. 875222,595 people
  7. 875372,038 people
  8. 811201,832 people
  9. 875271,534 people
  10. 870371,481 people
  11. 875211,261 people
  12. 875201,148 people
All 37
  1. 875301,102 people
  2. 875481,024 people
  3. 87510979 people
  4. 87575938 people
  5. 87549933 people
  6. 87582899 people
  7. 87412779 people
  8. 87577711 people
  9. 87018561 people
  10. 87578528 people
  11. 87419458 people
  12. 87523389 people
  13. 87017350 people
  14. 87515333 people
  15. 87012321 people
  16. 87539250 people
  17. 87029237 people
  18. 87064224 people
  19. 87551219 people
  20. 87531144 people
  21. 8704694 people
  22. 8751668 people
  23. 875180 people
  24. 875540 people
  25. 875810 people

37 ZIP Code areas overlap Rio Arriba County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Official county information

We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

School districts in Rio Arriba County, largest first

  1. Española Municipal Schools36,215 people
  2. Dulce Independent Schools4,022 people
  3. Peñasco Independent Schools3,993 people
  4. Mesa Vista Consolidated Schools2,694 people
  5. Chama Valley Independent Schools2,665 people
  6. Jemez Mountain Public Schools1,783 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Tribal areas in Rio Arriba County, largest first

  1. Santa Clara Pueblo and Off-Reservation Trust Land11,709 people
  2. Ohkay Owingeh6,434 people
  3. Jicarilla Apache Nation Reservation and Off-Reservation Trust Land3,626 people

American Indian, Alaska Native and Native Hawaiian areas as the Census Bureau maps them, with at least 2% of their area here, water included. These lines don’t decide membership, jurisdiction or land status.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

  1. Española, New Mexico (city)10,473 people
  2. Dulce, New Mexico (CDP)3,218 people
  3. La Mesilla, New Mexico (CDP)2,697 people
  4. Chimayo, New Mexico (CDP)2,390 people
  5. Dixon, New Mexico (CDP)1,623 people
  6. La Villita, New Mexico (CDP)1,534 people
  7. Ohkay Owingeh, New Mexico (CDP)1,194 people
  8. Los Luceros, New Mexico (CDP)1,136 people
  9. El Rito, New Mexico (CDP)1,102 people
  10. Chamita, New Mexico (CDP)867 people
  11. Chama, New Mexico (village)776 people
  12. San Jose, Rio Arriba County, New Mexico (CDP)776 people
All 41
  1. Hernandez, New Mexico (CDP)769 people
  2. Santa Clara Pueblo, New Mexico (CDP)733 people
  3. Truchas, New Mexico (CDP)528 people
  4. El Duende, New Mexico (CDP)454 people
  5. Canova, New Mexico (CDP)452 people
  6. Tierra Amarilla, New Mexico (CDP)429 people
  7. Cordova, New Mexico (CDP)389 people
  8. Gallina, New Mexico (CDP)318 people
  9. Alcalde, New Mexico (CDP)285 people
  10. Medanales, New Mexico (CDP)280 people
  11. Velarde, New Mexico (CDP)229 people
  12. Ensenada, New Mexico (CDP)225 people
  13. Chili, New Mexico (CDP)209 people
  14. Rio Chiquito, New Mexico (CDP)187 people
  15. Canjilon, New Mexico (CDP)185 people
  16. La Madera, Rio Arriba County, New Mexico (CDP)171 people
  17. Lumberton, New Mexico (CDP)130 people
  18. Ojo Sarco, New Mexico (CDP)112 people

See all 41 cities, towns and communities in Rio Arriba County, largest first

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Los Alamos County, New Mexico49 mi southeast
  2. Archuleta County, Colorado52 mi north
  3. Conejos County, Colorado56 mi northeast
  4. Sandoval County, New Mexico58 mi south
  5. Taos County, New Mexico59 mi east
  6. Santa Fe County, New Mexico80 mi southeast
  7. San Juan County, New Mexico91 mi west
  8. Mora County, New Mexico105 mi east

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.