South Haven, Kansas Demographics & Population 2026

A note before these figures: with a population of 276, South Haven'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

South Haven is a small community located in Kansas, within Sumner County. The total population is 276. It ranks as the 384th most populous out of 721 Census-designated places in Kansas.

Age Demographics

The median age in South Haven is 41.5 years. This is 11% higher than the state median of 37.4 years.

Economy, Income & Housing

The median household income in South Haven is $78,750. This is 6% higher than the state median of $74,275. It is also 2% lower than the national median of $80,734. The poverty rate stands at 2.5%. This is 77% 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 2.2%. This is 43% lower than the state rate of 3.9%. The median home value is $81,700. Housing costs are 62% lower than the state median of $217,200. With a home-value-to-income ratio of just 1.0x, South Haven is one of the most affordable housing markets in the area. 71.9% of occupied housing units are owner-occupied. This homeownership rate is 7% higher than the state average of 67.2%.

Race & Ethnicity

The largest racial or ethnic group in South Haven is White (non-Hispanic), making up 81.5% of the population. Hispanic or Latino residents account for 2.2%. The Black or African American population (0.4%) is well below the state average of 5.1%. The Hispanic or Latino population (2.2%) is well below the state average of 13.6%.

Education

33.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 6% lower 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 97.5%.

Data Sources & Methodology

All demographic data for South Haven, 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.