Boulder County, Colorado
Boulder County, Colorado, has 34 towns and 26 ZIP codes, in area codes 303 (overlay 720) and 970.
Towns in Boulder County, A to Z
| Town | ZIP codes | Area codes |
|---|---|---|
| Allenspark | 80510 | 303, 720, 983 |
| Altona | nearest80304 | 303, 720, 983 |
| Bark Ranch | nearest80455 | 303, 720, 983 |
| Bonanza Mountain Estates | nearest80466, 80471 | 303, 720, 983 |
| Boulder | 80301, 80302, 80303, 80304, 80305, 80306 and more | 303, 720, 983 |
| Broomfield | 80020, 80021, 80023, 80038 | 303, 720, 983 |
| Crisman | nearest80302, 80304, 80455 | 303, 720, 983 |
| Eldora | nearest80466, 80474 | 303, 970, 720, 983, 748 |
| Eldorado Springs | 80025 | 303, 720, 983 |
| Gold Hill | nearest80302, 80455 | 303, 720, 983 |
| Gunbarrel | nearest80301, 80544 | 303, 720, 983 |
| Hidden Lake | nearest80455 | 303, 720, 983 |
| Hygiene | 80533 | 303, 720, 983 |
| Jamestown | 80455 | 303, 720, 983 |
| Lafayette | 80026 | 303, 720, 983 |
| Lazy Acres | nearest80302, 80304, 80455 | 303, 720, 983 |
| Leyner | nearest80026, 80516, 80544 | 303, 720, 983 |
| Longmont | 80501, 80502, 80503, 80504 | 303, 720, 983, 970, 748 |
| Louisville | 80027 | 303, 720, 983 |
| Lyons | 80540 | 303, 720, 983 |
| Mountain Meadows | nearest80302, 80455 | 303, 720, 983 |
| Nederland | 80466 | 303, 720, 983 |
| Niwot | 80544 | 303, 720, 983 |
| Paragon Estates | nearest80027, 80303, 80305 | 303, 720, 983 |
| Pine Brook Hill | nearest80302, 80304, 80310 | 303, 720, 983 |
| Pinecliffe | 80471 | 303, 720, 983 |
| Seven Hills | nearest80302, 80304, 80310 | 303, 720, 983 |
| St. Ann Highlands | nearest80466, 80471 | 303, 720, 983 |
| Sugarloaf | nearest80302 | 303, 720, 983 |
| Sunshine | nearest80302, 80304, 80455 | 303, 720, 983 |
| Superior | nearest80021, 80027, 80303 | 303, 720, 983 |
| Tall Timber | nearest80302, 80304, 80310 | 303, 720, 983 |
| Valmont | nearest80301, 80303, 80310 | 303, 720, 983 |
| Ward | 80481 | 303, 720, 983 |
ZIP codes in Boulder County
- 80025Eldorado Springs303, 720, 983
- 80026Lafayette303, 720, 983
- 80027Louisville303, 720, 983
- 80038Broomfield303, 720, 983
- 80301Boulder303, 720, 983
- 80302Boulder303, 720, 983
- 80303Boulder303, 720, 983
- 80304Boulder303, 720, 983
- 80305Boulder303, 720, 983
- 80306Boulder303, 720, 983
- 80307Boulder303, 720, 983
- 80308Boulder303, 720, 983
- 80309Boulder303, 720, 983
- 80310Boulder303, 720, 983
- 80314Boulder303, 720, 983
- 80455Jamestown303, 720, 983
- 80466Nederland303, 720, 983
- 80471Pinecliffe303, 720, 983
- 80481Ward303, 720, 983
- 80501Longmont303, 720, 983
- 80502Longmont303, 720, 983
- 80503Longmont303, 720, 983
- 80510Allenspark303, 720, 983
- 80533Hygiene303, 720, 983
- 80540Lyons303, 720, 983
- 80544Niwot303, 720, 983
Area codes in Boulder County
- Area code 303
In service since 1947. Shares its area with 720 and 983. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.
- Area code 720
In service since June 1, 1998. Shares its area with 303 and 983. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.
- Area code 970
In service since April 2, 1995. Shares its area with 748. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.
Local numbers in area code 303
Looking for a phone number with a Boulder County area code? These 303 numbers are for sale through Exclusive Digits. Portable to Verizon, AT&T, T-Mobile and all major US carriers.
- (303) 305-4111Denver, CO$199View & buy
- (303) 305-4222Denver, CO$199View & buy
- (303) 928-2444Denver, CO$199View & buy
- (303) 222-2202Denver, CO$249View & buy
- (303) 222-2211Denver, CO$249View & buy
- (303) 222-2212Denver, CO$249View & buy
- (303) 390-1100Denver, CO$299View & buy
- (303) 542-1700Denver, CO$299View & buy
- (303) 801-0003Denver, CO$299View & buy
- (303) 801-0004Denver, CO$299View & buy
- (303) 876-4300Denver, CO$299View & buy
- (303) 876-4433Denver, COAlso spells HIDE$299View & buy
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