Olpe, Kansas Demographics & Population 2026

A note before these figures: with a population of 565, Olpe'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

Olpe is a small community located in Kansas, within Lyon County. The total population is 565. It ranks as the 278th most populous out of 721 Census-designated places in Kansas.

Age Demographics

The median age in Olpe is 35.2 years. This is 6% lower than the state median of 37.4 years. With 33.6% of the population under 18, Olpe has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Olpe is $89,479. This is 20% higher than the state median of $74,275. It is also 11% higher than the national median of $80,734. The poverty rate stands at 0.7%. This is 94% lower than the state poverty rate of 11.3%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 1.0%. This is 73% lower than the state rate of 3.9%. The median home value is $163,300. Housing costs are 25% lower than the state median of $217,200. With a home-value-to-income ratio of just 1.8x, Olpe is one of the most affordable housing markets in the area. 74.1% of occupied housing units are owner-occupied. This homeownership rate is 10% higher than the state average of 67.2%.

Race & Ethnicity

Olpe has a predominantly White (non-Hispanic) population, comprising 85.3% of all residents. Hispanic or Latino residents account for 10.1%. The Black or African American population (0.7%) is well below the state average of 5.1%.

Education

37.8% of residents aged 25 and older hold a bachelor's degree or higher. This places Olpe in the top 10% of all cities in the state for educational attainment. This is 6% higher than the state rate of 35.6%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 94.1%. Notably, 15.8% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Olpe, Kansas 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 Kansas state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 721 Census-designated places in Kansas. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.