Rock Springs, WY population, income and ZIP codes

Rock Springs city is a mid-size town in Wyoming, with 23,229 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #5 of 205 ranked by population — larger than 98% of them. The median age here is 35.8 years against 39.1 nationally, a slightly younger profile than the country as a whole. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.

Households in Rock Springs city earn a median of $73,307 a year, 6.7% below the national figure of $78,538 and 5% above the $69,912 median for the 54 Wyoming cities we cover. The median is the midpoint household, not an average, so a handful of very high earners cannot drag it upward the way they distort a mean. Poverty reaches 15.7% of residents here, above the 12.4% national rate.

The typical owner-occupied home in Rock Springs city is valued at $245,600, 19.1% below the national figure and within a couple of points of the $251,500 peer median, while median gross rent runs $943 a month, 32.9% below the national figure, or roughly $11,316 across a full year. A household on the local median income would put about 15.4% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 3.4×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 71.8% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. Rent is reported gross — contract rent plus tenant-paid utilities — which is why it runs above the advertised price on a listing for the same unit.

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.