Zip Code 81090 — Walsh, CO
81090 is a ZIP Code associated with Walsh, CO, located within Baca. 81090 ranks #2 out of 6 ZIP codes in Baca County by population (and #356 out of 527 in CO). The area supports an estimated population of 829 residents across Data Pending housing units, with a population density of 0.5 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (37.363110, -102.224340)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 81090 |
| Primary City | Walsh |
| State / Province | CO |
| County | Baca |
| Total Population | 829 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 0.5 people/sq mi |
| Timezone | America/Denver |
How 81090 Compares
| Metric | ZIP 81090 | Baca County | CO State Average |
|---|
| Population | 829 | 3,440 (Total) | 5,862,421 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 0.5 /sq mi | -- | -- |
| County Pop Rank | #2 of 6 | -- | -- |
Nearby ZIP Codes
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →