Westminster is a city located in California. With a 2020 population of 90,445, it is the 89th largest city in California and the 375th largest city in the United States. Westminster is currently declining at a rate of -0.11% annually but its population has increased by 0.83% since the most recent census, which recorded a population of 89,701 in 2010. Westminster reached it's highest population of 91,624 in 2013. Spanning over 10 miles, Westminster has a population density of 9,009 people per square mile.
The average household income in Westminster is $89,386 with a poverty rate of 15.46%. The median rental costs in recent years comes to $1,585 per month, and the median house value is $603,700. The median age in Westminster is 41.8 years, 40.8 years for males, and 42.7 years for females. For every 100 females there are 95.2 males.