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County ZIP codes · Colorado · FIPS 08021

Conejos County, CO ZIP Codes

Conejos County, Colorado has 8 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 6 of the residential ones lie mainly in Conejos County and 2 mainly in a neighboring county; 3 cross the county line. Median household income ranges from $47,546 in 81120 (Antonito) to $59,539 in 81141 (Manassa) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Conejos County?

81101 · Alamosa: $55k81120 · Antonito: $48k81124 · Capulin: $89k81129 · Conejos: –81140 · La Jara: $47k81141 · Manassa: $60k81148 · Romeo: $46k81151 · Sanford: $43k811208110181151811408114181101 · Alamosa: $55k81120 · Antonito: $48k81124 · Capulin: $89k81129 · Conejos: –81140 · La Jara: $47k81141 · Manassa: $60k81148 · Romeo: $46k81151 · Sanford: $43k811208110181151811408114181101 · Alamosa: $55k81120 · Antonito: $48k81124 · Capulin: $89k81129 · Conejos: –81140 · La Jara: $47k81141 · Manassa: $60k81148 · Romeo: $46k81151 · Sanford: $43k81120811018115181140
The residential ZIP codes of Conejos County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024).<$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

They carry 8 postal town names: Alamosa, La Jara, Antonito, Sanford, Manassa, Romeo, Capulin, Conejos.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 8 residential ZIP codes in Conejos County

6 ZIP codes lie mainly in Conejos County; 2 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Conejos County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
81140 La Jara 1,893 7 $47k $240k 100%
81120 Antonito 1,832 2 $48k $188k 92%
81141 Manassa 1,406 55 $60k $203k 100%
81148 Romeo 387 1,661 $46k $124k 100%
81124 Capulin 259 89 $89k $79k 100%
81129 Conejos 118 45 – – 100%

Partly in Conejos County

Residential ZIP codes mainly in another county that reach at least 1% into Conejos County, by their share here
In this county
81151 Sanford 1,716 6 $43k $189k 43%
81101 Alamosa 15,550 42 $55k $240k 6%

Download the 8 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

3 ZIP codes of Conejos County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Conejos County and in the neighboring counties
ZIPIn ConejosElsewhere
811016%Alamosa County94%
8112092%Rio Arriba County8%
8115143%Costilla County57%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do Conejos County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Conejos County starts with 811.

Three-digit prefixes of Conejos County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Conejos County's
PrefixSectional centerHereAll codes
811Colorado Springs, CO (SCF 808)832

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.