Zip Code 80303
Boulder, Colorado — Boulder County
📍 ZIP code 80303 is in Boulder, Boulder County, Colorado.
ZIP code 80303 is located in Boulder, Boulder County, Colorado. It is a zip code in the Mountain (MST/MDT) Time Zone with an estimated population of 24,934. The area code for ZIP code 80303 is 303.
Quick Answer
Zip code 80303 is in Boulder, Colorado (Boulder County). It has a population of 24,934, median household income of $77,344, and median home value of $941,600.
Population
24,934
Income
$77,344
Home Value
$941,600
Climate
88°F / 22°F
About Zip Code 80303
Zip code 80303 is located in Boulder, Colorado, within Boulder County. Home to approximately 24,934 residents, this area sits at an elevation of 5437 ft and falls within the Mountain (MST/MDT) timezone. The local area code is 303.
The median household income is $77,344 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $941,600, and the cost of living index is 231 (131% above the national average of 100).
Summers average a high of 88°F while winters drop to 22°F. The area receives about 21 in of rain and 93 in of snow annually. The zip code covers 22 square miles of land area and 0.9 square miles of water.
Key Statistics
24,934
$77,344
$941,600
Mountain (MST/MDT)
303
5437 ft
22 sq mi
29.8
12,583
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Compare With Nearby Zip Codes
| Metric | 80303 | 80027 | 80025 | 80301 | 80026 | 80304 |
|---|---|---|---|---|---|---|
| City | Boulder, CO | Superior, CO | Eldorado Springs, CO | Boulder, CO | Lafayette, CO | Boulder, CO |
| Population | 24,934 | 33,998 | 101 | 25,252 | 32,549 | 25,634 |
| Median Income | $77,344 | $153,165 | $128,145 | $92,974 | $115,031 | $121,534 |
| Home Value | $941,600 | $822,700 | $643,800 | $761,500 | $664,000 | $1,166,100 |
| Cost of Living | 231 | 239 | 100 | 196 | 193 | 250 |
| Median Age | 29.8 | 39.4 | 40.1 | 37.4 | 40.2 | 41.5 |
Cost of Living
100 = National Average. Boulder's cost of living is 131% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
12.2x
Demographics
Zip code 80303 has a population of 24,934 people with a median age of 29.8. There are 12,583 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Boulder (80303) population trend from 2010 to 2024
↑ 17.8%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
88°F
22°F
21 in
93 in
Boulder experiences warm summers with average highs around 88°F. Winters are cool with lows averaging 22°F. With 93 in of annual snowfall, residents should be prepared for significant winter weather.
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Housing & Economy
Median Home Value
$941,600
Median Household Income
$77,344
With 12,583 housing units across 22 square miles, 80303 has a housing density of 572 units per square mile. The home price-to-income ratio is 12.2x.
Location & Geography
Latitude
39.9732°
Longitude
-105.2093°
Land Area
22 sq mi
Water Area
0.9 sq mi
Nearby Zip Codes
Zip codes closest to 80303 (Boulder, CO) with distances:
All Zip Codes in Boulder, CO
Other zip codes serving Boulder:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 80303's $77,344. A way to compare Boulder to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 80303 (Boulder, CO). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Boulder, Colorado?
Boulder, Colorado uses zip code 80303 along with 3 other zip codes.
What county is zip code 80303 in?
Zip code 80303 is located in Boulder County, Colorado.
What is the population of zip code 80303?
The population of zip code 80303 is 24,934 with a median age of 29.8.
Is 80303 in Boulder, Colorado?
Yes, zip code 80303 is in Boulder, Boulder County, Colorado. The area code is 303.
Frequently Asked Questions
What city is zip code 80303 in?
Zip code 80303 is in Boulder, Colorado. It is part of Boulder County and uses the Mountain (MST/MDT) timezone.
What is zip code 80303?
Zip code 80303 is a U.S. postal code in Boulder, Colorado (Boulder County). It has a population of 24,934 and covers 22 square miles.
What is the population of zip code 80303?
The population of zip code 80303 (Boulder, CO) is 24,934 with a median age of 29.8. There are approximately 12,583 housing units in this area.
What is the median income in zip code 80303?
The median household income in zip code 80303 (Boulder, CO) is $77,344 per year. The cost of living index is 231 (100 = national average).
What is the average home price in zip code 80303?
The median home value in zip code 80303 (Boulder, CO) is $941,600. The cost of living index is 231 compared to the national average of 100.
What county is zip code 80303 in?
Zip code 80303 is located in Boulder County, Colorado. The primary city is Boulder.
What is the area code for zip code 80303?
Zip code 80303 in Boulder, CO uses area code 303. It is located in the Mountain (MST/MDT) timezone.
Is zip code 80303 a good place to live?
Zip code 80303 (Boulder, CO) has a cost of living index of 231 (100 = national average), a median household income of $77,344, and median home values of $941,600. The median age is 29.8. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 80303?
The cost of living index for zip code 80303 (Boulder, CO) is 231, where 100 represents the national average. This area is above the national average. Median home value: $941,600.
What schools serve zip code 80303?
Zip code 80303 in Boulder, Colorado is served by the local school district of Boulder County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.