Gem, Kansas Demographics & Population 2026

A note before these figures: with a population of 98, Gem'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

Gem is a small community located in Kansas, within Thomas County. The total population is 98. It ranks as the 550th most populous out of 721 Census-designated places in Kansas.

Age Demographics

The median age in Gem is 44.0 years. This is 18% higher than the state median of 37.4 years.

Economy, Income & Housing

The ACS records no residents below the poverty line in Gem. 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 Gem, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $56,500. Housing costs are 74% lower than the state median of $217,200. 91.1% of occupied housing units are owner-occupied. This homeownership rate is 36% higher than the state average of 67.2%.

Race & Ethnicity

Gem has a predominantly White (non-Hispanic) population, comprising 95.9% of all residents. Hispanic or Latino residents account for 2.0%. The Hispanic or Latino population (2.0%) is well below the state average of 13.6%.

Education

20.0% of residents aged 25 and older hold a bachelor's degree or higher. This is 44% lower than the state rate of 35.6%. 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 Gem, 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.