Boulder County, Colorado ZIP Codes

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

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

NOTE: LARGE COMPLEX ZIP CODE MAPS CAN BE SLOW LOADING!

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