Warrensburg, IL Demographics

Population 1,290 · Census ACS 2020–24

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Median age by neighborhoodHistory and comparison ↓︎
Warrensburg, IL map of median age by neighborhood
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Population and households in Warrensburg

Household size in Warrensburg

Household size, people per household
PeriodWarrensburgIllinoisU.S.
2006–102.582.692.68
2010–142.492.712.73
2015–192.722.662.71
2020–242.532.582.65
Change−0.06−0.11−0.03
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Households in Warrensburg run a little small, averaging 2.53 people against 2.65 nationally, which usually means more singles and couples and fewer children. The picture is much the same across Illinois.

Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).

Median age in Warrensburg

Median age, years
PeriodWarrensburgIllinoisU.S.
2006–1042.037.637.7
2010–1440.138.538.6
2015–1940.739.639.6
2020–2447.440.240.1
Change+5.4+2.6+2.3
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Warrensburg skews older: half of its residents are older than 47.4, well above the national median of 40.1. That usually means more empty nesters and retirees, and fewer young families. The median age has climbed from 42.0 in 2006–10, but in a place this small, much of that may be survey noise rather than real change.

Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).

Single-parent households in Warrensburg

Single-parent households, % of households
PeriodWarrensburgIllinoisU.S.
2006–109.6%11.7%12.3%
2010–1422.0%11.7%12.3%
2015–1911.0%11.1%11.6%
2020–246.8%11.3%11.6%
Change−2.8 pts−0.4 pts−0.6 pts
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Single-parent households are relatively rare in Warrensburg: 6.8% of households, against 11.6% nationally.

Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).

Housing in Warrensburg

Renters in Warrensburg

Renters, % of occupied homes
PeriodWarrensburgIllinoisU.S.
2006–1012.7%30.8%33.3%
2010–1428.6%33.1%35.6%
2015–1917.8%33.9%36.0%
2020–2416.2%32.9%34.8%
Change+3.5 pts+2.1 pts+1.5 pts
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Only 16.2% of households in Warrensburg rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. About half of owners (50.7%) have paid off their mortgages, well above the national share of 39.8%.

Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).

Vacant homes in Warrensburg

Vacant homes, % of all homes
PeriodWarrensburgIllinoisU.S.
2006–106.6%10.0%11.4%
2010–148.2%10.1%11.4%
2015–195.4%9.8%11.1%
2020–2412.9%8.1%9.6%
Change+6.3 pts−1.9 pts−1.8 pts
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More homes sit empty in Warrensburg than nationally: 12.9%, against 9.6%. The count includes vacation homes and homes between owners or tenants, not just abandoned ones.

Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).

Age of homes in Warrensburg

Age of homes, median year built
PeriodWarrensburgIllinoisU.S.
2006–10196019661974
2010–14196719671975
2015–19196919681977
2020–24197119701980
Change+11+4+6
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Warrensburg is a place of older homes: half were built before 1971, while the national median is 1980. That means established neighborhoods, and more houses that may need updating. The picture is much the same across Illinois.

Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).

Rent in Warrensburg

Rent, per month
PeriodWarrensburgIllinoisU.S.
2006–10$454$953$965
2010–14$587$1,028$1,040
2015–19$628$1,165$1,213
2020–24$775$1,428$1,571
Change+$320+$475+$606
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The median renter in Warrensburg pays $775 a month for rent and utilities, well below the national median of $1,571. The typical renter here spends 31.9% of household income on rent, just over the 30% mark often used to define affordable rent.

Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).

Education in Warrensburg

Bachelor's degrees in Warrensburg

Bachelor's degrees, % of adults 25+
PeriodWarrensburgIllinoisU.S.
2006–1021.0%31.2%28.4%
2010–1427.4%32.4%29.6%
2015–1929.9%34.7%32.1%
2020–2427.9%37.7%35.6%
Change+6.9 pts+6.5 pts+7.2 pts
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More than a quarter of adults 25 and older in Warrensburg (27.9%) have a bachelor's degree or higher, below the national share of 35.6%.

Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

High school graduates in Warrensburg

High school graduates, % of adults 25+
PeriodWarrensburgIllinoisU.S.
2006–1092.4%86.3%84.9%
2010–1491.5%87.5%86.1%
2015–1993.7%89.1%87.7%
2020–2495.4%90.3%89.3%
Change+3.0 pts+4.0 pts+4.3 pts
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High school completion is high in Warrensburg: 95.4% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%.

High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

Jobs in Warrensburg

Unemployment, % of the labor force
PeriodWarrensburgIllinoisU.S.
2006–108.5%8.7%8.1%
2010–144.0%10.2%9.4%
2015–198.3%6.1%5.6%
2020–242.7%6.0%5.4%
Change−5.8 pts−2.7 pts−2.7 pts
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Unemployment in Warrensburg has been low: just 2.7% of the labor force was out of work and looking, well below the national rate of 5.4%. Each figure pools five years of surveys (2020–24), so it describes that whole stretch rather than today's job market.

Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).

Warrensburg compared with nearby cities

CityHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
Warrensburg2.5347.46.8%16.2%12.9%1971$77527.9%95.4%2.7%
Forsyth2.7842.25.7%12.2%4.6%1994$85859.2%98.2%4.5%
Latham2.3139.06.8%13.9%5.7%1960$70316.5%95.6%0.9%
Harristown2.5739.47.5%13.4%12.3%1964$84015.7%94.5%4.8%
Niantic2.9140.310.7%14.8%15.5%1949$98911.4%87.0%13.4%
Decatur2.2841.012.5%34.8%13.8%1961$90321.8%91.6%8.6%
Maroa2.6643.56.8%22.6%10.2%1969$86128.4%95.2%4.0%
Chestnut2.5247.09.1%12.5%4.7%1959$71018.4%82.2%1.2%
Oreana2.4740.98.8%10.3%11.9%1971$92626.2%95.1%2.8%
Kenney2.1853.53.1%11.2%7.2%1961$70119.8%94.8%2.4%
Illiopolis2.5042.27.3%14.7%4.4%1965$78528.2%91.3%3.6%

All figures 2020–24.

Cities with similar populations: Hettinger, ND · Lake View, IA · Kopperl, TX · Key Center, WA · Akeley, MN · Keosauqua, IA · Irwinton, GA · Huson, MT · Hunt, TX · Hull, TX

About these numbers

Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Warrensburg. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.

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