📍 View location on OpenStreetMap (40.231860, -105.393410)
| Data Metric | Local Statistic |
|---|---|
| Postal / Zip Code | 80540 |
| Primary City | Lyons |
| State / Province | CO |
| County | Boulder |
| Total Population | 4,642 |
| Population Density | 11.7 people/sq mi |
| Timezone | America/Denver |
| Metric | ZIP 80540 | Boulder County records | CO records |
|---|---|---|---|
| Population estimate | 4,642 | 285,786 (sum) | 5,862,421 (sum) |
| Population Density | 11.7 /sq mi | -- | -- |
| County population rank | #11 of 16 | -- | -- |
| State population rank | #233 of 512 | -- | -- |
Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.
| ZIP Code | City | Distance | Population estimate |
|---|---|---|---|
| ZIP 80455 | Jamestown | 8.4 mi | 501 |
| ZIP 80510 | Allenspark | 9.9 mi | 663 |
| ZIP 80503 | Longmont | 10.7 mi | 35,846 |
| ZIP 80481 | Ward | 11.2 mi | 484 |
| ZIP 80304 | Boulder | 14.0 mi | 25,383 |
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 →