Population 194,947 · Census ACS 2020–24
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Population and households in Sangamon County
Household size in Sangamon County
| Period | Sangamon County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 2.38 | 2.69 | 2.68 |
| 2010–14 | 2.38 | 2.71 | 2.73 |
| 2015–19 | 2.34 | 2.66 | 2.71 |
| 2020–24 | 2.34 | 2.58 | 2.65 |
| Change | −0.05 | −0.11 | −0.03 |
Sangamon County is a place of small households, averaging 2.34 people against 2.65 for the U.S., which points to many singles, couples and roommates and relatively few children. Since 2006–10, household size has edged down from 2.38, as it has nationally. Households are largest in the southwest and smallest in the center.
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 Sangamon County
| Period | Sangamon County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 39.4 | 37.6 | 37.7 |
| 2010–14 | 40.6 | 38.5 | 38.6 |
| 2015–19 | 41.4 | 39.6 | 39.6 |
| 2020–24 | 41.8 | 40.2 | 40.1 |
| Change | +2.3 | +2.6 | +2.3 |
The median resident of Sangamon County is 41.8 years old, a bit older than the national median of 40.1. Since 2006–10, the median age has climbed from 39.4, in line with the national trend.
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 Sangamon County
| Period | Sangamon County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 12.4% | 11.7% | 12.3% |
| 2010–14 | 12.2% | 11.7% | 12.3% |
| 2015–19 | 12.0% | 11.1% | 11.6% |
| 2020–24 | 10.8% | 11.3% | 11.6% |
| Change | −1.6 pts | −0.4 pts | −0.6 pts |
Single-parent households are about as common in Sangamon County as they are nationally: 10.8%, against 11.6%. The single-parent share has fallen 1.6 points since 2006–10, as it has 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 Sangamon County
Renters in Sangamon County
| Period | Sangamon County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 29.5% | 30.8% | 33.3% |
| 2010–14 | 30.2% | 33.1% | 35.6% |
| 2015–19 | 31.1% | 33.9% | 36.0% |
| 2020–24 | 28.7% | 32.9% | 34.8% |
| Change | −0.8 pts | +2.1 pts | +1.5 pts |
Most households in Sangamon County own their homes; 28.7% rent, a little below the national share of 34.8%. Just over four in ten owners (42.3%) have paid off their mortgages, about the same as nationally. Rentals cluster in the center; owners are most common in the east. The renter share is down 0.8 points from 2006–10, even as the national share rose.
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 Sangamon County
| Period | Sangamon County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 8.6% | 10.0% | 11.4% |
| 2010–14 | 8.1% | 10.1% | 11.4% |
| 2015–19 | 9.1% | 9.8% | 11.1% |
| 2020–24 | 9.6% | 8.1% | 9.6% |
| Change | +1.0 pts | −1.9 pts | −1.8 pts |
Vacancy in Sangamon County is the same as the national rate: 9.6% of homes are empty. Since 2006–10, vacancy has edged up 1.0 points, even as the national rate fell.
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 Sangamon County
| Period | Sangamon County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 1973 | 1966 | 1974 |
| 2010–14 | 1972 | 1967 | 1975 |
| 2015–19 | 1972 | 1968 | 1977 |
| 2020–24 | 1974 | 1970 | 1980 |
| Change | +1 | +4 | +6 |
Housing in Sangamon County leans a little older: the median home dates to 1974, against 1980 nationally. Still, homes here are newer than in Illinois as a whole, where the median home dates to 1970. The newest homes are mostly in the southwest, the oldest in the center.
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 Sangamon County
| Period | Sangamon County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | $757 | $953 | $965 |
| 2010–14 | $815 | $1,028 | $1,040 |
| 2015–19 | $890 | $1,165 | $1,213 |
| 2020–24 | $1,114 | $1,428 | $1,571 |
| Change | +$357 | +$475 | +$606 |
The median renter in Sangamon County pays $1,114 a month for rent and utilities, well below the national median of $1,571. Rent has climbed $357 a month since 2006–10, up 47%, a slower climb than the nation's. Rent takes 29.1% of the typical renter's income, just under the 30% mark often used to define affordable rent. Renters on a budget will find the lowest rents in the north; the highest are in the west.
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 Sangamon County
Bachelor's degrees in Sangamon County
| Period | Sangamon County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 32.0% | 31.2% | 28.4% |
| 2010–14 | 33.4% | 32.4% | 29.6% |
| 2015–19 | 34.7% | 34.7% | 32.1% |
| 2020–24 | 36.7% | 37.7% | 35.6% |
| Change | +4.8 pts | +6.5 pts | +7.2 pts |
More than a third of adults 25 and older in Sangamon County (36.7%) hold at least a bachelor's degree, close to the national share of 35.6%. The share with a degree has risen 4.8 points since 2006–10, mirroring the country. College graduates are most concentrated in the west and least in the north.
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 Sangamon County
| Period | Sangamon County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 91.5% | 86.3% | 84.9% |
| 2010–14 | 92.5% | 87.5% | 86.1% |
| 2015–19 | 92.5% | 89.1% | 87.7% |
| 2020–24 | 94.2% | 90.3% | 89.3% |
| Change | +2.7 pts | +4.0 pts | +4.3 pts |
High school completion in Sangamon County is above the national rate: 94.2% of adults have a diploma or equivalent, against 89.3%. The share with a diploma has risen 2.7 points since 2006–10, in line with the national trend. Few Illinois counties have a higher share of high school graduates: only nine of 102.
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 Sangamon County
| Period | Sangamon County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 7.1% | 8.7% | 8.1% |
| 2010–14 | 8.1% | 10.2% | 9.4% |
| 2015–19 | 5.8% | 6.1% | 5.6% |
| 2020–24 | 5.8% | 6.0% | 5.4% |
| Change | −1.3 pts | −2.7 pts | −2.7 pts |
At 5.8%, unemployment in Sangamon County is close to the national rate of 5.4%. Since 2006–10, unemployment has edged down 1.3 points, as it has nationally. Because the Census pools five years of responses (2020–24), these rates smooth over short swings and lag the current 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).
Sangamon County compared with nearby counties
| County | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Sangamon County | 2.34 | 41.8 | 10.8% | 28.7% | 9.6% | 1974 | $1,114 | 36.7% | 94.2% | 5.8% |
| Morgan County | 2.39 | 43.1 | 10.5% | 27.2% | 13.8% | 1964 | $800 | 22.9% | 89.0% | 5.5% |
| Macon County | 2.35 | 41.6 | 11.1% | 29.8% | 12.2% | 1965 | $890 | 24.4% | 92.8% | 7.4% |
| Scott County | 2.41 | 45.5 | 9.3% | 21.0% | 14.1% | 1963 | $915 | 21.6% | 92.4% | 2.8% |
| Moultrie County | 2.46 | 40.2 | 11.5% | 24.0% | 7.7% | 1970 | $810 | 19.5% | 83.9% | 2.2% |
| Pike County | 2.44 | 42.6 | 12.9% | 22.3% | 17.5% | 1959 | $685 | 18.5% | 91.3% | 4.1% |
| Douglas County | 2.61 | 39.5 | 9.4% | 23.1% | 9.6% | 1968 | $844 | 20.6% | 86.0% | 2.5% |
| Marion County | 2.48 | 39.4 | 14.7% | 30.7% | 12.4% | 1969 | $809 | 24.7% | 90.6% | 4.1% |
| Edgar County | 2.18 | 47.0 | 9.3% | 27.3% | 9.2% | 1961 | $826 | 19.2% | 88.2% | 4.4% |
| Vermillion County | 2.36 | 44.0 | 9.1% | 24.8% | 10.7% | 1962 | $766 | 17.6% | 93.5% | 4.4% |
| Shelby County | 2.43 | 43.0 | 13.8% | 22.5% | 18.8% | 1970 | $595 | 18.4% | 90.3% | 1.6% |
All figures 2020–24.
Counties with similar populations: Richmond County, GA · Benton County, AR · Benton County, WA · Berkeley County, SC · Yavapai County, AZ · Broome County, NY · Brown County, WI · Buncombe County, NC · Butte County, CA · Cabarrus County, NC
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 Sangamon County. 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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