South Fork Colorado ZIP Codes
South Fork holds a single ZIP code.
Every ZIP code in South Fork
| ZIP code | County |
|---|---|
| 81154 | Rio Grande County |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the South Fork codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for South Fork. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every South Fork ZIP code begins 811. Those first three digits identify the sectional center facility that processes mail for this part of Colorado. Statewide that range covers 32 ZIP codes, so South Fork accounts for 3% of it.
Every Colorado ZIP prefix and the region it covers →
Area codes covering South Fork
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground South Fork occupies.
South Fork Colorado area codes in full →
Where South Fork's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near South Fork
| City | Distance | ZIP codes |
|---|---|---|
| Del Norte Colorado ZIP codes | 16 mi | 1 ZIP code |
| Monte Vista Colorado ZIP codes | 28 mi | 1 ZIP code |
| Center Colorado ZIP codes | 30 mi | 1 ZIP code |
| Pagosa Springs Colorado ZIP codes | 34 mi | 2 ZIP codes |
| Saguache Colorado ZIP codes | 40 mi | 1 ZIP code |
| Hooper Colorado ZIP codes | 42 mi | 1 ZIP code |
| Lake City Colorado ZIP codes | 44 mi | 1 ZIP code |
| Alamosa Colorado ZIP codes | 44 mi | 2 ZIP codes |
Straight-line distance between place reference points, not driving distance.