Chestnut, Illinois Demographics & Population 2026

A note before these figures: with a population of 347, Chestnut'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

Chestnut is a small community located in Illinois, within Logan County. The total population is 347. It ranks as the 1039th most populous out of 1,445 Census-designated places in Illinois.

Age Demographics

The median age in Chestnut is 47.6 years. This is 22% higher than the state median of 39.0 years. With 33.4% of the population under 18, Chestnut has a notably young demographic profile, suggesting a family-oriented community. 12.1% 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 Chestnut is $54,091. This is 35% lower than the state median of $83,390. It is also 33% lower than the national median of $80,734. The poverty rate stands at 17.3%. This is 46% higher than the state poverty rate of 11.8%. The survey records no unemployed residents in Chestnut, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $135,600. Housing costs are 48% lower than the state median of $263,300. With a home-value-to-income ratio of just 2.5x, Chestnut is one of the most affordable housing markets in the area. 94.4% of occupied housing units are owner-occupied. This homeownership rate is 41% higher than the state average of 67.1%.

Race & Ethnicity

The largest racial or ethnic group in Chestnut is White (non-Hispanic), making up 52.7% of the population. Hispanic or Latino residents account for 47.3%. The Hispanic or Latino population is significantly higher than the state average (47.3% vs 18.8%).

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. The high school graduation rate (or equivalent) is 54.1%.

Data Sources & Methodology

All demographic data for Chestnut, Illinois 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 Illinois state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,445 Census-designated places in Illinois. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.