First three digits · Colorado
ZIP Codes Starting with
32 ZIP codes start with 811, sorted at the Colorado Springs, CO (SCF 808) sectional center (USPS labeling list L005, effective October 1, 2026) in Colorado: 29 residential ZIP codes across 8 counties and 3 PO Box or single-organization codes (Census 2020 ZCTAs and GeoNames postal codes, October 2026).
What do the digits 811 mean?
The first digit, 8, is one of ten national areas (Arizona, Colorado, Idaho, New Mexico, Nevada, Utah and Wyoming). The first three, 811, route mail to a sectional center: USPS labeling list L005 (effective October 1, 2026) sends letters for 811 to the Colorado Springs, CO (SCF 808) facility. The last two digits pick the delivery area. By residents, the largest town names among the 811 ZIP codes are Alamosa, Pagosa Springs, Bayfield, Monte Vista, Ignacio and Center.
The same facility sorts 5 prefixes, 217 ZIP codes in all: 808, 809, 810, 811, 812.
Where are the 811 ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All ZIP codes starting with 811
| County | ||||||
|---|---|---|---|---|---|---|
| 81101 | Alamosa | Alamosa County | 15,550 | 42 | $55k | $240k |
| 81102 | Alamosa | Alamosa County | PO Box or unique | – | – | – |
| 81120 | Antonito | Conejos County | 1,832 | 2 | $48k | $188k |
| 81121 | Arboles | Archuleta County | 376 | 84 | $43k | $332k |
| 81122 | Bayfield | La Plata County | 8,838 | 18 | $94k | $460k |
| 81123 | Blanca | Costilla County | 606 | 4 | $37k | $152k |
| 81124 | Capulin | Conejos County | 259 | 89 | $89k | $79k |
| 81125 | Center | Saguache County | 3,362 | 13 | $56k | $149k |
| 81126 | Chama | Costilla County | 506 | 51 | $53k | $170k |
| 81128 | Chromo | Archuleta County | 34 | 0 | $250k+ | – |
| 81129 | Conejos | Conejos County | 118 | 45 | – | – |
| 81130 | Creede | Mineral County | 727 | 1 | $55k | $406k |
| 81131 | Crestone | Saguache County | 1,051 | 3 | $45k | $334k |
| 81132 | Del Norte | Rio Grande County | 3,252 | 5 | $55k | $210k |
| 81133 | Fort Garland | Costilla County | 1,085 | 3 | $46k | $273k |
| 81135 | Homelake | Rio Grande County | PO Box or unique | – | – | – |
| 81136 | Hooper | Alamosa County | 305 | 4 | $47k | $193k |
| 81137 | Ignacio | La Plata County | 5,571 | 22 | $64k | $335k |
| 81138 | Jaroso | Costilla County | 17 | 1 | – | – |
| 81140 | La Jara | Conejos County | 1,893 | 7 | $47k | $240k |
| 81141 | Manassa | Conejos County | 1,406 | 55 | $60k | $203k |
| 81143 | Moffat | Saguache County | 796 | 2 | $31k | $169k |
| 81144 | Monte Vista | Rio Grande County | 6,543 | 23 | $65k | $234k |
| 81146 | Mosca | Alamosa County | 637 | 2 | $70k | $232k |
| 81147 | Pagosa Springs | Archuleta County | 13,091 | 10 | $84k | $486k |
| 81148 | Romeo | Conejos County | 387 | 1,661 | $46k | $124k |
| 81149 | Saguache | Saguache County | 1,183 | 2 | $57k | $198k |
| 81151 | Sanford | Costilla County | 1,716 | 6 | $43k | $189k |
| 81152 | San Luis | Costilla County | 1,244 | 3 | $32k | $120k |
| 81154 | South Fork | Rio Grande County | 1,363 | 4 | $77k | $511k |
| 81155 | Villa Grove | Saguache County | 228 | 1 | $75k | $610k |
| 81157 | Pagosa Springs | Archuleta County | PO Box or unique | – | – | – |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; GeoNames postal codes (CC BY 4.0) for codes without a residential area.