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Longmont Area Codes

About Longmont Area Codes

The city of Longmont, located in Colorado, is served by 2 telephone area code(s) in this dataset. These calling codes connect residential neighborhoods, business districts, and surrounding communities.

Major phone area codes used in Longmont include 303 and 720. The city falls under the America/Denver time zone(s), depending on the exact location and provider routing.

List of Area Codes in Longmont, Colorado

The table below lists all telephone area codes used in Longmont, Colorado, along with the associated counties and time zones from this dataset.


S.N. Area Code Counties Time Zone(s)
1 303 Weld America/Denver
2 720 Weld America/Denver


ZIP Codes in Longmont, Colorado

Zip code data is not available for this city in the current dataset.



Related Area Code Pages

Explore related area code resources on Burning Compass:

  • All area codes in Colorado
  • Individual area code details are available from the table above.

Cities in Colorado (Area Codes)

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  2. Aurora Area Codes
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  25. Pueblo West Area Codes
  26. Security-Widefield Area Codes
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  29. Westminster Area Codes
  30. Wheat Ridge Area Codes

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