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Clickable map of Colorado area codes in blue (with bordering states). The U.S. state of Colorado is served by five telephone area codes of the North American Numbering Plan (NANP). Area code 303 is the original area code assigned to the entire state when the first nationwide telephone numbering plan was created in 1947.
Boulder is the principal city of the Boulder metropolitan statistical area, which had 330,758 residents in 2020, and is part of the Front Range Urban Corridor. Boulder is located at the base of the foothills of the Rocky Mountains , at an elevation of 5,430 feet (1,655 m) above sea level.
That list also includes the county websites, links to Colorado Department of Transportation county maps, and the geographic coordinates of the counties. As of July 1, 2023, El Paso County remains the most populous county in Colorado with a population estimate of 744,215, while Hinsdale County with a 2023 population of 765 is now the least populous.
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:
Photo Map. Boulder is a college town of about 106,000 in the Front Range region of Colorado. Boulder has about 107,000 residents and an elevation of 5,328 feet.
Get information about area code of Boulder County in Colorado. Also find all the counties located in Colorado through area codes map.
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2 days ago · See a county map of Colorado on Google Maps with this free, interactive map tool. This Colorado county map shows county borders and also has options to show county name labels, overlay city limits and townships and more.
