Boulder County, Colorado
Boulder County profile, demographic data, and geographic information.
Local Government & Public Administration
Authoritative general-purpose local government units serving this area
U.S. Census Bureau GUS (2026) / GMAF
| Government Unit | Unit Type | Jurisdiction Role | Contact / Address |
|---|---|---|---|
|
GUS Population: 330,262 (2024)
ID: 161308
|
County | Official County Government |
Contact: CHAIRMAN
PO BOX 471, BOULDER CO 80306-0471
|
|
GUS Population: 106,803 (2024)
ID: 161337
|
Municipal | Municipal Government Within County |
Contact: MAYOR
PO BOX 791, BOULDER CO 80306-0791
|
|
GUS Population: 99,818 (2024)
ID: 194651
|
Municipal | Municipal Government Within County |
Contact: ASSISTANT CITY MANAGER
350 KIMBARK ST, LONGMONT CO 80501-5551
|
|
GUS Population: 30,587 (2024)
ID: 123724
|
Municipal | Municipal Government Within County |
Contact: MAYOR
1290 S PUBLIC RD, LAFAYETTE CO 80026-2706
|
|
GUS Population: 20,811 (2024)
ID: 161338
|
Municipal | Municipal Government Within County |
Contact: PUBLIC RELATIONS MANAGER
749 MAIN ST, LOUISVILLE CO 80027-1829
|
|
GUS Population: 13,654 (2024)
ID: 207620
|
Municipal | Municipal Government Within County |
Contact: ACCOUNTING MANAGER
124 E COAL CREEK DR, SUPERIOR CO 80027-9626
|
|
GUS Population: 2,155 (2024)
ID: 189728
|
Municipal | Municipal Government Within County |
Contact: TOWN CLERK
PO BOX 49, 432 5TH AVENUE, LYONS CO 80540
|
|
GUS Population: 1,487 (2024)
ID: 184579
|
Municipal | Municipal Government Within County |
Contact: TOWN CLERK
PO BOX 396, NEDERLAND CO 80466-0396
|
|
GUS Population: 246 (2024)
ID: 184578
|
Municipal | Municipal Government Within County |
Contact: TOWN CLERK/TREASURER
PO BOX 298, JAMESTOWN CO 80455-0298
|
|
GUS Population: 127 (2024)
ID: 161339
|
Municipal | Municipal Government Within County |
Contact: MAYOR
PO BOX 99, WARD CO 80481-0099
|