Longmont, CO ZIP codes

3 ZIP/ZCTAs intersecting this Census place in Boulder County.

ACS 2023 population

98,958

Median household income

$89,724

Median home value

$541,400

U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: Census place Longmont (GEOID 0845970). Methodology

Combined population of ZIP/ZCTAs intersecting this place: 141,102 (3 ZIPs).

Combined population of ZIP/ZCTAs intersecting this place. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census place ACS headline above. Methodology

Map of Longmont, CO

Census place boundary and intersecting ZIP Code Tabulation Areas for Longmont, CO — Census place boundary for Longmont, CO. Intersecting ZCTAs may extend past the city limit. Not a USPS city limit. Boundaries: U.S. Census Bureau. Methodology · Data sources

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ZIP/ZCTA overlap with Longmont

Population overlap

Share of each ZIP/ZCTA’s population located within Longmont, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.

8050199.6%
USPS primary city
8050370.7%
USPS primary city
8050451.3%
USPS primary city

ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology

ZIP codes intersecting Longmont

ZIP	City	County	Population	Income
80501	Longmont	Boulder County	43,591	$77,705
80503	Longmont	Boulder County	36,206	$118,465
80504	Longmont	Boulder County	61,305	$109,671

USPS associates these ZIPs with Longmont

These codes list Longmont as a primary or acceptable city. They are not used for the ACS headline.

ZIP	City	County	Population	Income
80502	Longmont	Boulder County	1,452	—