Westminster, CO population, income and ZIP codes

Westminster city is a mid-size city in Colorado, with 115,546 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #8 of 482 ranked by population — larger than 98% of them. The median age here is 37.5 years against 39.1 nationally, a slightly younger profile than the country as a whole. At this size the Census also publishes one-year estimates; the five-year values used here are steadier and let you compare against smaller neighbours on the same basis.

Households in Westminster city earn a median of $96,145 a year, 22.4% above the national figure of $78,538 and 11% above the $86,484 median for the 223 Colorado cities we cover. This figure covers the household, not the worker: two people on ordinary wages at one address outrank a single professional in the same table. Poverty reaches 7% of residents here, below the 12.4% national rate.

The typical owner-occupied home in Westminster city is valued at $497,400, 63.9% above the national figure and 10% above the $453,600 peer median, while median gross rent runs $1,816 a month, 29.2% above the national figure, or roughly $21,792 across a full year. A household on the local median income would put about 22.7% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is within the standard affordability guideline. The home-price-to-income ratio works out to 5.2×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 63.7% of occupied homes are owner-occupied versus 65% nationally, so the market leans more heavily on renters. Gross rent folds in the utilities a tenant pays separately, so it is closer to the real monthly outlay than a headline rent figure.

Every value on this page is published directly by the Census for this area — nothing is modelled or interpolated. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.