Centennial, Wyoming Demographics & Population 2026

A note before these figures: with a population of 521, Centennial'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

Centennial is a small community located in Wyoming, within Albany County. The total population is 521. It ranks as the 82nd most populous out of 192 Census-designated places in Wyoming.

Age Demographics

The median age in Centennial is 65.6 years. This is 68% higher than the state median of 39.1 years. 20.3% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Centennial is $110,579. This is 45% higher than the state median of $76,176. It is also 37% higher than the national median of $80,734. The poverty rate stands at 9.0%. This is 14% lower than the state poverty rate of 10.5%. The survey records no unemployed residents in Centennial, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $288,600. Housing costs are 7% lower than the state median of $309,700. With a home-value-to-income ratio of just 2.6x, Centennial is one of the most affordable housing markets in the area. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 39% higher than the state average of 71.8%.

Race & Ethnicity

Every resident counted in Centennial was recorded as White (non-Hispanic). A figure of exactly 100.0% reflects a survey sample too small to capture the community's full composition rather than a precise measurement.

Education

82.2% of residents aged 25 and older hold a bachelor's degree or higher. This places Centennial in the top 10% of all cities in the state for educational attainment. This is 169% higher than the state rate of 30.6%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 90.7%. Notably, 20.5% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Centennial, 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.