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  1. The ZIP Codes in Boulder range from 80301 to 80503. Of the ZIP codes within or partially within Boulder there are 5 Standard ZIP Codes, 3 Unique ZIP Codes and 3 PO Box ZIP Codes. The total population of ZIP Codes in Boulder is 129521. Data Updated October 2, 2024. Map List Related.

  2. Oct 1, 2024 · The combined population for all ZIP Codes in Boulder, CO is 131,690. Population Density is 823.06 persons per square mile. Average Household Size is 2.20 persons and Average Family Size is 3.29 persons. The Census Designated Place population for Boulder city; Colorado is 108,250.

  3. Map of ZIP Codes in Boulder County Colorado - Updated October, 2024

  4. ZIP Codes for BOULDER, Colorado. Use our address lookup or code list to find the correct 5-digit or 9-digit (ZIP+4) code for your postal mails destination ...

  5. Jan 30, 2023 · State County City Zipcode; Colorado : Boulder: Eldorado Springs : 80025: Colorado : Boulder: Lafayette : 80026: Colorado : Boulder: Louisville : 80027: Colorado ...

  6. Boulder is one of the popular cities of Colorado, covers 11 zip codes of Boulder County and accommodates a total population of 106,598 residents, based on the 2022 American Community Survey (ACS 5-year) data. The 80302 ZIP code's location BOULDER is the most populated location having 30,569 residents, among all ZIP code locations in Boulder, CO.

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  8. Boulder, CO is a city located in Boulder County, Colorado and has a land area of 159.82 square miles (413.93 km2). The water area for the city is 4.12 square miles or 10.67 km2. There are 11 total unique zip codes in Boulder, Colorado. The area code(s) for Boulder is 303.

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