Postal reference / United States
81154South Fork, Colorado
ZIP code 81154 is a United States postal code for South Fork, Colorado. Its county association is Rio Grande County. The map reference point is at 37.6725, -106.6125.
- State / territory
- Colorado
- Recorded place name
- South Fork
- County association
- Rio Grande
- Estimated coordinate
- 37.6725, -106.6125
View on OpenStreetMap - ZIP prefix
- 811 · 32 ZIP codes share it
- Data source
- GeoNames postal reference, snapshot September 26, 2026
GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.
Area
- Land area
- 375.036 sq mi (2023 Census Gazetteer)
Figures are for the ZIP Code Tabulation Area (ZCTA) that most closely matches this ZIP code, not an exact match to USPS delivery boundaries. Source: U.S. Census Bureau, 2023 Gazetteer + 2023 ACS 5-Year Estimates, retrieved 2026-09-27. How to read this data.
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Browse the other 644 ZIP codes recorded for Colorado, sorted by code with place and county.
Colorado directoryNearby ZIP code reference points
| ZIP code | Place | State | County association | Miles |
|---|---|---|---|---|
| 81132 | Del Norte | CO | Rio Grande | 11.4 |
| 81130 | Creede | CO | Mineral | 19.9 |
| 81144 | Monte Vista | CO | Rio Grande | 26.7 |
| 81125 | Center | CO | Saguache | 28.8 |
| 81135 | Homelake | CO | Rio Grande | 29.0 |
| 81157 | Pagosa Springs | CO | Archuleta | 35.4 |
| 81147 | Pagosa Springs | CO | Archuleta | 37.3 |
| 81149 | Saguache | CO | Saguache | 37.4 |
Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.
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