County ZIP codes · Colorado · FIPS 08113
San Miguel County, CO ZIP Codes
San Miguel County, Colorado has 6 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 5 of the residential ones lie mainly in San Miguel County and 1 mainly in a neighboring county; 3 cross the county line.
- ACS2020-24
- Census2020
Where are the ZIP codes of San Miguel County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All 6 residential ZIP codes in San Miguel County
5 ZIP codes lie mainly in San Miguel County; 1 more reaches into it from a neighboring county and follows the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 81435 | Telluride | 5,876 | 31 | $83k | $983k | 100% |
| 81423 | Norwood | 1,176 | 2 | $62k | $425k | 90% |
| 81431 | Redvale | 745 | 6 | $83k | $263k | 65% |
| 81430 | Placerville | 708 | 3 | $74k | $1.23M | 100% |
| 81426 | Ophir | 120 | 12 | $135k | $906k | 100% |
Partly in San Miguel County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 81325 | Egnar | 95 | 0 | $57k | $400k | 49% |
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 San Miguel County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In San Miguel | Elsewhere |
|---|---|---|
| 81423 | 90% | Montrose County10% |
| 81431 | 65% | Montrose County35% |
| 81325 | 49% | Dolores County51% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do San Miguel County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. San Miguel County's ZIP codes use 2 prefixes: 813 and 814.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.