Grantville, Kansas Demographics & Population 2026

A note before these figures: with a population of 122, Grantville'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

Grantville is a small community located in Kansas, within Jefferson County. The total population is 122. It ranks as the 521st most populous out of 721 Census-designated places in Kansas.

Age Demographics

The median age in Grantville is 66.5 years. This is 78% higher than the state median of 37.4 years.

Economy, Income & Housing

The median household income in Grantville is $65,063. This is 12% lower than the state median of $74,275. It is also 19% lower than the national median of $80,734. The ACS records no residents below the poverty line in Grantville. In a community this small the estimate rests on very few survey responses, so it should be read as an absence of measurement rather than a measured absence of poverty. The survey records no unemployed residents in Grantville, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $212,500. Housing costs are 2% lower than the state median of $217,200. The home-value-to-income ratio is 3.3x. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 49% higher than the state average of 67.2%.

Race & Ethnicity

Every resident counted in Grantville 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

0.0% of residents aged 25 and older hold a bachelor's degree or higher. This is among the lowest rates in the state, which may correlate with employment and income patterns. 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 Grantville, 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.