Longmont, CO Demographics & ZIP Codes
Longmont, Colorado demographics and median household income by ZIP code (in Boulder County) — 2 ZIP codes — population 79,797 — median income $98,085 — avg. home value $583,100. Compare income, housing, and population across ZIP codes on US5.
Longmont demographics
Longmont, Colorado covers 2 ZIP codes primarily in Boulder County, with a combined ZIP-area population of about 79,797.
Across ZIP codes with age data, the average median age is about 41.0 years.
Median household income in Longmont
The average median household income across ZIP codes in Longmont, Colorado is about $98,085 — about 17% above the CO ZIP average ($84,127), and about 31% above the U.S. median ($75,149).
Among ZIPs with income data, 80503 is near the top at about $118,465, while 80501 is near the bottom at about $77,705.
Housing in Longmont
For housing in Longmont, Colorado, the average median home value is about $583,100 and the average median rent is about $1,597.
The most populous ZIP in this set is 80501 (about 43,591 residents). Use the table below to compare population, income, and home values across codes.
ZIP codes in Longmont
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 80501 | Longmont | Boulder County | CO | 43,591 | $77,705 | $461,400 |
| 80503 | Longmont | Boulder County | CO | 36,206 | $118,465 | $704,800 |
Frequently asked questions
What are the demographics of Longmont?
Longmont, Colorado has a combined ZIP-area population of about 79,797 across 2 ZIP codes (primarily Boulder County). Browse the ZIP table below for population, income, and housing by code.
What is the median household income in Longmont?
The average median household income across ZIP codes in Longmont, Colorado is about $98,085, about 17% above the state ZIP average ($84,127), and about 31% above the U.S. median ($75,149). Average median home value is about $583,100. Among ZIPs with data, 80503 is near the top ($118,465) and 80501 is near the bottom ($77,705).
How many ZIP codes are in Longmont?
Longmont, Colorado includes 2 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for Longmont?
This page lists ZIP codes in Longmont, Colorado with population, median household income, and home value. Select a ZIP for a full demographics profile.