Rock River, Wyoming Demographics & Population 2026

A note before these figures: with a population of 219, Rock River's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.

Population Overview

Rock River is a small community located in Wyoming, within Albany County. The total population is 219. It ranks as the 127th most populous out of 192 Census-designated places in Wyoming.

Age Demographics

The median age in Rock River is 33.7 years. This is 14% lower than the state median of 39.1 years.

Economy, Income & Housing

The median household income in Rock River is $49,500. This is 35% lower than the state median of $76,176. It is also 39% lower than the national median of $80,734. The poverty rate stands at 26.0%. This is 147% higher than the state poverty rate of 10.5%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The survey records no unemployed residents in Rock River, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $127,000. Housing costs are 59% lower than the state median of $309,700. With a home-value-to-income ratio of just 2.6x, Rock River is one of the most affordable housing markets in the area. 58.9% of occupied housing units are owner-occupied. This homeownership rate is 18% lower than the state average of 71.8%.

Race & Ethnicity

Rock River has a predominantly White (non-Hispanic) population, comprising 86.8% of all residents. Hispanic or Latino residents account for 0.5%. The Hispanic or Latino population (0.5%) is well below the state average of 10.7%.

Education

38.0% of residents aged 25 and older hold a bachelor's degree or higher. This is 24% higher than the state rate of 30.6%. Nationally, 35.7% of adults hold at least a bachelor's degree. No surveyed resident aged 25 or older reported leaving school before earning a high school diploma, though a rate of exactly 100% reflects the limits of a small sample.

Data Sources & Methodology

All demographic data for Rock River, Wyoming is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Wyoming state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 192 Census-designated places in Wyoming. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.