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  1. Boulder Colorado ZIP Code Map. Click on the ZIP Codes in the interactive map to view more information. The map control in the upper right corner can be used to toggle map layers on and off. The red outline is the border of Boulder and can be turned on and off.

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      Data and Maps. Canada Postal Codes Area Codes US ZIP Codes...

  2. List of Colorado area codes. Coordinates: 38.9972°N 105.5478°W. Clickable map of Colorado area codes in blue (with bordering states). [1] The U.S. state of Colorado is served by five telephone area codes of the North American Numbering Plan (NANP).

  3. Boulder is a home rule city in and the county seat of Boulder County, Colorado, United States. With a population of 108,250 at the 2020 census , it is the most-populous city in the county and the 12th-most populous city in Colorado. [6]

  4. Sep 1, 2017 · Boulder, CO Area Codes: List, Map, and Phone Lookup. The city of Boulder is in the state of Colorado. It has the following active area codes:

  5. A Complete List of All 29 ZIP Codes in Boulder, CO.

  6. 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.

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  8. Jul 1, 2024 · 11 ZIP Codes in Boulder, CO of Boulder County, Area Codes 303 & 720, maps, demographics, population, businesses, geography, home values.>