Longmont zip code

Zip code in Longmont, CO

The location Longmont belongs to Boulder County, state of Colorado. Longmont has 4 zip codes which you can see in the following table.

Longmont is the official name of the location so if you want to use the US Postal Service you must use that name.

Zip code	Type	Population
80501	STANDARD	36,810
80502	PO BOX	1,663
80503	STANDARD	32,000
80504	STANDARD	54,760

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