South Jacksonville, IL Demographics

Population 3,773 · Census ACS 2020–24

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

Household size in South Jacksonville

Household size, people per household
PeriodSouth JacksonvilleIllinoisU.S.
2006–102.152.692.68
2010–142.152.712.73
2015–192.092.662.71
2020–242.072.582.65
Change−0.08−0.11−0.03
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South Jacksonville is a place of small households, averaging 2.07 people against 2.65 for the U.S., which points to many singles, couples and roommates and relatively few children.

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 South Jacksonville

Median age, years
PeriodSouth JacksonvilleIllinoisU.S.
2006–1043.437.637.7
2010–1444.338.538.6
2015–1943.639.639.6
2020–2443.440.240.1
Change+0.1+2.6+2.3
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The median resident of South Jacksonville is 43.4 years old, older than the national median of 40.1.

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 South Jacksonville

Single-parent households, % of households
PeriodSouth JacksonvilleIllinoisU.S.
2006–107.7%11.7%12.3%
2010–146.2%11.7%12.3%
2015–1915.9%11.1%11.6%
2020–2416.0%11.3%11.6%
Change+8.3 pts−0.4 pts−0.6 pts
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Single-parent households are common in South Jacksonville: 16.0% of all households, against 11.6% nationally. Since 2006–10, the single-parent share has risen 8.3 points, but in a place this small, survey estimates can swing a lot from one release to the next.

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 South Jacksonville

Renters in South Jacksonville

Renters, % of occupied homes
PeriodSouth JacksonvilleIllinoisU.S.
2006–1030.3%30.8%33.3%
2010–1422.3%33.1%35.6%
2015–1933.1%33.9%36.0%
2020–2430.1%32.9%34.8%
Change−0.2 pts+2.1 pts+1.5 pts
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Most households in South Jacksonville own their homes; 30.1% rent, a little below the national share of 34.8%. The picture is much the same across Illinois. About four in ten owners (39.4%) have paid off their mortgages, about the same as nationally.

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 South Jacksonville

Vacant homes, % of all homes
PeriodSouth JacksonvilleIllinoisU.S.
2006–103.9%10.0%11.4%
2010–146.8%10.1%11.4%
2015–1910.7%9.8%11.1%
2020–247.5%8.1%9.6%
Change+3.5 pts−1.9 pts−1.8 pts
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Fewer homes sit empty in South Jacksonville than nationally: 7.5%, against 9.6% for the U.S. The picture is much the same across Illinois.

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 South Jacksonville

Age of homes, median year built
PeriodSouth JacksonvilleIllinoisU.S.
2006–10196519661974
2010–14196719671975
2015–19196719681977
2020–24196619701980
Change+1+4+6
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The housing in South Jacksonville is old by national standards: the median home dates to 1966, against 1980 for the U.S., so buyers will find more older houses, some of them due for updates. 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 South Jacksonville

Rent, per month
PeriodSouth JacksonvilleIllinoisU.S.
2006–10$484$953$965
2010–14$554$1,028$1,040
2015–19$757$1,165$1,213
2020–24$731$1,428$1,571
Change+$247+$475+$606
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The median renter in South Jacksonville pays $731 a month for rent and utilities, well below the national median of $1,571. Rent takes 26.3% of the typical renter's income, comfortably under 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 South Jacksonville

Bachelor's degrees in South Jacksonville

Bachelor's degrees, % of adults 25+
PeriodSouth JacksonvilleIllinoisU.S.
2006–1019.1%31.2%28.4%
2010–1427.6%32.4%29.6%
2015–1924.9%34.7%32.1%
2020–2424.2%37.7%35.6%
Change+5.0 pts+6.5 pts+7.2 pts
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College degrees are relatively uncommon in South Jacksonville: 24.2% of adults 25 and older hold a bachelor's or higher, well 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 South Jacksonville

High school graduates, % of adults 25+
PeriodSouth JacksonvilleIllinoisU.S.
2006–1088.6%86.3%84.9%
2010–1493.4%87.5%86.1%
2015–1993.3%89.1%87.7%
2020–2493.2%90.3%89.3%
Change+4.6 pts+4.0 pts+4.3 pts
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High school completion in South Jacksonville is above the national rate: 93.2% of adults have a diploma or equivalent, against 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 South Jacksonville

Unemployment, % of the labor force
PeriodSouth JacksonvilleIllinoisU.S.
2006–104.4%8.7%8.1%
2010–143.7%10.2%9.4%
2015–191.4%6.1%5.6%
2020–2416.4%6.0%5.4%
Change+12.0 pts−2.7 pts−2.7 pts
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Unemployment in South Jacksonville runs well above the national rate: 16.4% of the labor force was out of work and looking, against 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).

South Jacksonville compared with nearby cities

CityHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
South Jacksonville2.0743.416.0%30.1%7.5%1966$73124.2%93.2%16.4%
Jacksonville2.3941.010.5%32.7%15.9%1962$76223.6%86.8%4.3%
Arnold2.2758.52.9%4.2%13.8%1968$1,03331.1%87.5%1.8%
Pisgah2.7451.81.8%11.7%12.8%1989$1,02235.2%98.0%0.4%
Woodson2.3649.410.6%9.7%14.9%1990$1,08030.1%98.4%1.0%
Lynnville2.5646.76.0%6.1%16.2%1970$1,07130.3%89.0%2.7%
Sinclair2.2158.82.8%3.4%15.1%1964$1,04530.2%86.0%1.7%
Murrayville2.6946.411.9%12.3%15.0%1974$96416.5%86.1%5.7%
Merritt2.4043.88.2%20.4%15.4%1960$76918.8%91.5%1.3%
Alexander2.5751.15.8%13.1%8.7%1964$99324.6%89.2%2.9%
Literberry2.4452.42.0%9.7%17.8%1965$1,07128.1%89.5%0.5%

All figures 2020–24.

Cities with similar populations: Richmond, IL · Palmyra, VA · Starr, SC · Palo Cedro, CA · Riverton, IL · Riverside, MO · Riverdale, MD · River Falls, AL · Riva, MD · Rio Bravo, 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 South Jacksonville. 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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