ZIP codes
18
Boulder County, CO Demographics & ZIP Codes
Boulder County, Colorado demographics and median household income by ZIP code — 18 ZIP codes — population 285,296 — avg. income $111,732 — avg. home value $772,160. Compare income, housing, and ZIP-level data on US5.
Population
285,296
Median household income (avg.)
$111,732
149% of U.S. median
Average home value
$772,160
222% of U.S. median
Average rent
$1,687
145% of U.S. median
Boulder County demographics
Boulder County, Colorado covers 18 ZIP codes, with a combined ZIP-area population of about 285,296.
Median household income in Boulder County
The average median household income across ZIP codes in Boulder County, Colorado is about $111,732 — about 33% above the CO ZIP average ($84,127), and about 49% above the U.S. median ($75,149).
Among ZIPs with income data, 80455 (Glendale) is near the top at about $175,438, while 80302 (Lazy Acres) is near the bottom at about $60,649.
Housing in Boulder County
For housing in Boulder County, Colorado, the average median home value is about $772,160 and the average median rent is about $1,687.
The most populous ZIP is 80501 (Longmont) with about 43,591 residents. Use the table below to compare ZIP codes across the county.
ZIP codes in Boulder County
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 |
| 80027 | Louisville | Boulder County | CO | 33,998 | $153,165 | $822,700 |
| 80026 | Lafayette | Boulder County | CO | 32,549 | $115,031 | $664,000 |
| 80302 | Lazy Acres | Boulder County | CO | 29,751 | $60,649 | $1,123,800 |
| 80304 | Boulder | Boulder County | CO | 25,634 | $121,534 | $1,166,100 |
| 80301 | Boulder | Boulder County | CO | 25,252 | $92,974 | $761,500 |
| 80303 | Boulder | Boulder County | CO | 24,934 | $77,344 | $941,600 |
| 80305 | Boulder | Boulder County | CO | 16,101 | $120,933 | $985,700 |
| 80310 | Boulder | Boulder County | CO | 7,530 | — | — |
| 80540 | Allenspark | Boulder County | CO | 4,620 | $136,109 | $787,800 |
| 80466 | Eldora | Boulder County | CO | 3,469 | $84,236 | $659,900 |
| 80510 | Allenspark | Boulder County | CO | 705 | $122,143 | $772,100 |
| 80481 | Bark Ranch | Boulder County | CO | 477 | $92,105 | $551,500 |
| 80455 | Glendale | Boulder County | CO | 378 | $175,438 | $535,700 |
| 80025 | Eldorado Springs | Boulder County | CO | 101 | $128,145 | $643,800 |
| 80471 | — | Boulder County | CO | — | — | — |
| 80544 | Niwot | Boulder County | CO | — | — | — |
Frequently asked questions
What are the demographics of Boulder County?
Boulder County, Colorado has a combined ZIP-area population of about 285,296 across 18 ZIP codes. Browse the ZIP table for population, income, and housing by code.
What is the median household income in Boulder County?
The average median household income across ZIP codes in Boulder County, Colorado is about $111,732, about 33% above the state ZIP average ($84,127), and about 49% above the U.S. median ($75,149). Average median home value is about $772,160. Among ZIPs with data, 80455 (Glendale) is near the top ($175,438) and 80302 (Lazy Acres) is near the bottom ($60,649).
How many ZIP codes are in Boulder County?
Boulder County, Colorado includes 18 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for Boulder County?
This page lists ZIP codes in Boulder County, Colorado with population, median household income, and home value. Select a ZIP for a full demographics profile.