
Westminster
- County:
- Adams County
- County Seat:
- No
- Area (mi²):
- 31.618
- State:
- Colorado
Westminster is a city located in Adams County, Colorado. Westminster has a 2025 population of 113,729. Westminster is currently declining at a rate of -0.5% annually and its population has decreased by -2.46% since the most recent census, which recorded a population of 116,594 in 2020.
The average household income in Westminster is $122,877 with a poverty rate of 7.05%. The median age in Westminster is 37.5 years: 36.5 years for males, and 38.7 years for females.