80031 ZIP Code Profile, Map, Data & Demographics

ZIP Code Type: STANDARD
County: Adams County
Centroid: Latitude 39.862, Longitude -105.041
Time Zone: Mountain Time Zone (UTC -7 hours)
Observes DST: Yes

ZIP Code 80031 has segments in 2 Counties (Adams, Jefferson).

Businesses Addresses: 581
PO Box Addresses: 0
Residential Addresses: 15,714

Multi-Family Addresses: 4,045
Single Family Addresses: 11,669

The ZIP Code maps and database are updated 4 times per year.
Database updated: October 1, 2025, Maps updated: May 1, 2024.

Westminster, CO 80031 Data & Demographics (As of July 1, 2025)

POPULATION
Total Population	41,651 (100%)
Population in Households	41,566 (99.8%)
Population in Families	32,265 (77.5%)
Population in Group Quarters¹	85 ( 0.2%)
Population Density	4,802
Diversity Index²	74


INCOME
Median Household Income	$108,621
Average Household Income	$140,769
% of Income for Mortgage⁴	34%
Per Capita Income	$55,923
Wealth Index⁵	128
Socioeconomic Status Index⁶	Moderate (52.7)

HOUSING
Total HU (Housing Units)	17,390 (100%)
Owner Occupied HU	10,441 (60.0%)
Renter Occupied HU	6,104 (35.1%)
Vacant Housing Units	845 ( 4.9%)
Median Home Value	$597,319
Average Home Value	$610,643
Housing Affordability Index³	70

HOUSEHOLDS
Total Households	16,545
Average Household Size	2.51
Family Households	10,266
Average Family Size	3.00

NOTES

Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

Westminster, CO 80031 - Peer Comparisons by Rank and Percentile

The table below compares 80031 to the other 524 ZIP Codes in Colorado by rank and percentile using July 1, 2025 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

GROWTH RATE / YEAR	2020-2025	2025-2030
Population	0.24%	0.07%
Households	0.73%	0.23%
Families		0.07%
Median Household Income		2.73%
Per Capita Income		1.84%
Owner Occupied HU		0.66%

Variable Description	Rank	Percentile
Total Population	# 36	93rd
Population Density	# 45	92nd
Median Household Income	# 123	77th
Housing Affordability Index	# 302	58th
Per Capita Income	# 140	73rd
Diversity Index	# 85	84th

80031 ZIP Code Profile, Map, Data & Demographics

ZIP Code 80031: Basic Data & USPS Preferred City Name

Westminster, CO 80031 Data & Demographics (As of July 1, 2025)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Westminster, CO 80031 - Peer Comparisons by Rank and Percentile

Popular Places Near ZIP Code 80031

Use HTL Address Research for a Colorado Address and get...

Quick & Easy Ways to...

Colorado Census Data Comparison Tool

More Tools and Resources:

Adams County