Zip Code 80031
Westminster, Colorado — Adams County
📍 ZIP code 80031 is in Westminster, Adams County, Colorado.
ZIP code 80031 is located in Westminster, Adams County, Colorado. It is a zip code in the Mountain (MST/MDT) Time Zone with an estimated population of 36,350. The area code for ZIP code 80031 is 303.
Quick Answer
Zip code 80031 is in Westminster, Colorado (Adams County). It has a population of 36,350, median household income of $106,244, and median home value of $499,200.
Population
36,350
Income
$106,244
Home Value
$499,200
Climate
91°F / 19°F
About Zip Code 80031
Zip code 80031 is located in Westminster, Colorado, within Adams County. Home to approximately 36,350 residents, this area sits at an elevation of 5469 ft and falls within the Mountain (MST/MDT) timezone. The local area code is 303.
The median household income is $106,244 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $499,200, and the cost of living index is 158 (58% above the national average of 100).
Summers average a high of 91°F while winters drop to 19°F. The area receives about 15 in of rain and 45 in of snow annually. The zip code covers 8.4 square miles of land area.
Key Statistics
36,350
$106,244
$499,200
Mountain (MST/MDT)
303
5469 ft
8.4 sq mi
40.3
15,377
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Compare With Nearby Zip Codes
| Metric | 80031 | 80260 | 80030 | 80234 | 80003 | 80021 |
|---|---|---|---|---|---|---|
| City | Westminster, CO | Denver, CO | Westminster, CO | Northglenn, CO | Arvada, CO | Broomfield, CO |
| Population | 36,350 | 34,861 | 15,945 | 29,573 | 35,381 | 35,562 |
| Median Income | $106,244 | $62,929 | $61,964 | $88,714 | $82,754 | $105,645 |
| Home Value | $499,200 | $188,200 | $422,300 | $493,900 | $486,600 | $530,300 |
| Cost of Living | 158 | 76 | 113 | 145 | 139 | 156 |
| Median Age | 40.3 | 31.5 | 33.4 | 36.2 | 38.3 | 36.4 |
Cost of Living
100 = National Average. Westminster's cost of living is 58% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
4.7x
Demographics
Zip code 80031 has a population of 36,350 people with a median age of 40.3. There are 15,377 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Westminster (80031) population trend from 2010 to 2024
↑ 1.2%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
91°F
19°F
15 in
45 in
Westminster experiences hot summers with average highs around 91°F. Winters are cold with lows averaging 19°F. With 45 in of annual snowfall, residents should be prepared for significant winter weather.
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Housing & Economy
Median Home Value
$499,200
Median Household Income
$106,244
With 15,377 housing units across 8.4 square miles, 80031 has a housing density of 1,831 units per square mile. The home price-to-income ratio is 4.7x.
Location & Geography
Latitude
39.8739°
Longitude
-105.0388°
Land Area
8.4 sq mi
Water Area
0 sq mi
Nearby Zip Codes
Zip codes closest to 80031 (Westminster, CO) with distances:
All Zip Codes in Westminster, CO
Other zip codes serving Westminster:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 80031's $106,244. A way to compare Westminster 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 80031 (Westminster, 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 Westminster, Colorado?
Westminster, Colorado uses zip code 80031 along with 1 other zip codes.
What county is zip code 80031 in?
Zip code 80031 is located in Adams County, Colorado.
What is the population of zip code 80031?
The population of zip code 80031 is 36,350 with a median age of 40.3.
Is 80031 in Westminster, Colorado?
Yes, zip code 80031 is in Westminster, Adams County, Colorado. The area code is 303.
Frequently Asked Questions
What city is zip code 80031 in?
Zip code 80031 is in Westminster, Colorado. It is part of Adams County and uses the Mountain (MST/MDT) timezone.
What is zip code 80031?
Zip code 80031 is a U.S. postal code in Westminster, Colorado (Adams County). It has a population of 36,350 and covers 8.4 square miles.
What is the population of zip code 80031?
The population of zip code 80031 (Westminster, CO) is 36,350 with a median age of 40.3. There are approximately 15,377 housing units in this area.
What is the median income in zip code 80031?
The median household income in zip code 80031 (Westminster, CO) is $106,244 per year. The cost of living index is 158 (100 = national average).
What is the average home price in zip code 80031?
The median home value in zip code 80031 (Westminster, CO) is $499,200. The cost of living index is 158 compared to the national average of 100.
What county is zip code 80031 in?
Zip code 80031 is located in Adams County, Colorado. The primary city is Westminster.
What is the area code for zip code 80031?
Zip code 80031 in Westminster, CO uses area code 303. It is located in the Mountain (MST/MDT) timezone.
Is zip code 80031 a good place to live?
Zip code 80031 (Westminster, CO) has a cost of living index of 158 (100 = national average), a median household income of $106,244, and median home values of $499,200. The median age is 40.3. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 80031?
The cost of living index for zip code 80031 (Westminster, CO) is 158, where 100 represents the national average. This area is above the national average. Median home value: $499,200.
What schools serve zip code 80031?
Zip code 80031 in Westminster, Colorado is served by the local school district of Adams 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.