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Boulder County, Colorado ZIP Codes

ZIP Codes in Boulder County with Associated Cities & Towns

Boulder County, CO - Standard ZIP Codes

80020 | 80026 | 80027 | 80301 | 80302 | 80303 | 80304 | 80305 | 80403 | 80422 | 80455 | 80466 | 80481 | 80501 | 80503 | 80504 | 80510 | 80513 | 80516 | 80540

Boulder County, CO - PO Box ZIP Codes (NO DEMOGRAPHIC DATA)

80025 | 80306 | 80307 | 80308 | 80471 | 80502 | 80533 | 80544

Boulder County, CO - Unique - Single Entity ZIP Codes (NO DEMOGRAPHIC DATA)

80309 | 80310 | 80314

Note: Every ZIP Code has a single ACTUAL City Name assigned by the US Postal Service (USPS).
See the specific ZIP Code for acceptable Alternate City Names and spelling variations.

ZIP Codes in Boulder County Address Data

Businesses Addresses: 17,430
PO Box Addresses: 9,090
Residential Addresses: 201,892

Multi-Family Addresses: 40,844
Single Family Addresses: 158,106

Map of Boulder County, CO ZIP Codes With Actual (Default) City Names

Boulder
Eldorado Springs
Erie
Hygiene
Jamestown
Lafayette
Longmont
Louisville
Lyons
Nederland
Niwot
Pinecliffe
Ward

Boulder County, Colorado ZIP Codes

ZIP Codes in Boulder County with Associated Cities & Towns

ZIP Codes in Boulder County Address Data

Map of Boulder County, CO ZIP Codes With Actual (Default) City Names

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