ZIP Codes of Rio Arriba County, NM

Population & People
Population & People
Total Population
43,816
Household Income
Household Income
Median Income
$63,370
Housing
Housing
Total Housing Units
21,908
Business & Economy
Business & Economy
Total Businesses
614
Employment
Employment
Employment Rate
50.55%
Education
Education
Bachelor's Degree+
19.47%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 28 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:28 ZIP Codes (18 Standard, 10 PO Box, 0 Unique) [See All]
Area Codes:505 / 575
Timezone:Mountain (GMT -07:00)
Local Time:2:13:12 PM
Population:43,816 [See All]
FIPS:35039
CBSA:Espanola, NM
Land Area:4,642 sq mi
Water Area:22 sq mi
Coordinates:36.2825, -106.2856
Quick Link:
https://www.zip-codes.com/county/nm-rio-arriba.asp
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Notable income spread
Median income ranges $35,896 to $98,329 across ZIPs — a 2.7× gap.

Standout ZIPs in this County


Most Populous
Espanola · 18,948 people
43.2% of county total
Highest Income
Tierra Amarilla · $98,329 median
1.6× county average
Largest Land Area
Dulce · 1,199.0 sq mi
Spans the most ground
Fastest Growth
Alcalde · 25.7% (10-yr)
2,473 → 3,108 residents
Most Educated
Espanola · 23.2% bachelor's+
2,904 of 12,506 adults 25+

Things worth knowing about Rio Arriba County


43,816 residents live across 28 ZIPs covering 4,642 sq mi, served by 27 distinct USPS-recognized cities.

Population moved from 44,936 to 43,816 from 2014 to 2024 — a -2.5% change. 12 ZIPs gained residents, 15 lost.

The county's wealthiest ZIP 87575 (Tierra Amarilla, $98,329 median) and poorest ZIP 87523 (Cordova, $23,395) are 62.1 miles apart — a 4.2× income gap across local geography.

Median home values vary 7.2× across this county — from $56,100 in 87528 (Dulce) to $406,300 in 87527 (Dixon).

Density varies 329× across the county — from 1 people/sq mi in 87029 (Lindrith) to 202 in 87532 (Espanola).

Educational attainment ranges from 2.9% bachelor's+ in 87537 (Hernandez) to 56.8% in 87582 (Velarde) — the breadth of educational profiles across the area.

Within New Mexico, this is the #12 most populous of 34 counties and ranks #12 for median household income .

Weighted by population, the typical household earns about $59,092 across the county — reflecting what a typical resident sees, not a simple ZIP average.

19.5% of adults age 25+ hold a bachelor's degree or higher (5,894 of 30,279 reporting).

18 Standard delivery, 10 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Rio Arriba County


Two counties in one

Median household income spans 4.2× between the wealthiest and poorest ZIPs — a sign of significant intra-county inequality.

Wealthiest ZIP
Tierra Amarilla
Median income: $98,329
Population: 938
Bachelor's+: 5.2%
vs
Poorest ZIP (pop >= 500)
Cordova
Median income: $23,395
Population: 389
Bachelor's+: 0.0%
For every $1 of household income in 87523, the typical household in 87575 earns $4.20.

Big & sparse

A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.

Total area
4,642
square miles
Avg density
9.4
people per sq mi
Population
43,816
across 28 ZIPs
Dulce
1,199.0 sq mi
3,756 residents
Chama
690.4 sq mi
1,148 residents
Lindrith
385.5 sq mi
237 residents

All ZIP Codes in Rio Arriba County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
87532EspanolaStandard18,948$58,44893.72.9%
87528DulceStandard3,756$41,6791,199.013.9%
87511AlcaldePO Box3,108$70,34665.225.7%
87566Ohkay OwingehStandard2,684$61,02926.5-22.8%
87522ChimayoStandard2,595$58,620139.1-6.0%
87537HernandezStandard2,038$48,228181.1-48.5%
87527DixonPO Box1,534$65,46126.9156.1%
87520ChamaStandard1,148$38,889690.4-6.1%
87530El RitoStandard1,102148.343.7%
87548MedanalesPO Box1,024$72,7887.9-10.6%
87510AbiquiuStandard979$85,453228.664.5%
87575Tierra AmarillaStandard938$98,329102.08.3%
87582VelardePO Box8996.3-45.0%
87578TruchasPO Box52837.1-42.8%
87523CordovaPO Box389$23,39512.428.0%
87017GallinaStandard350$78,060110.4-18.8%
87515CanjilonPO Box333$93,676158.432.7%
87012CoyoteStandard321$36,303139.420.7%
87539La MaderaStandard25085.9-14.1%
87029LindrithStandard237$70,435385.562.3%
87064YoungsvilleStandard224114.6128.6%
87551Los OjosStandard219$35,896154.9-33.4%
87531EmbudoStandard14437.3-59.3%
87516CanonesStandard68$103,62598.5-44.3%
87518CebollaPO Box0166.5-100.0%
87554PetacaPO Box0131.0-100.0%
87581VallecitosStandard094.8-100.0%
87533EspanolaPO Box0.0

Adjacent & Nearby Counties