Population 30,058 · Census ACS 2020–24
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Population and households in Randolph County
Household size in Randolph County
| Period | Randolph County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 2.37 | 2.69 | 2.68 |
| 2010–14 | 2.44 | 2.71 | 2.73 |
| 2015–19 | 2.38 | 2.66 | 2.71 |
| 2020–24 | 2.32 | 2.58 | 2.65 |
| Change | −0.05 | −0.11 | −0.03 |
Households in Randolph County are small: just 2.32 people on average, compared with 2.65 nationally. That is typical of places where many people live alone or as couples, and fewer have children at home. Since 2006–10, household size has edged down from 2.37, in line with the national trend.
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 Randolph County
| Period | Randolph County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 41.1 | 37.6 | 37.7 |
| 2010–14 | 42.9 | 38.5 | 38.6 |
| 2015–19 | 43.4 | 39.6 | 39.6 |
| 2020–24 | 43.6 | 40.2 | 40.1 |
| Change | +2.5 | +2.6 | +2.3 |
Randolph County skews older than the country: its median age is 43.6, against 40.1 nationally. Since 2006–10, the median age has climbed from 41.1, mirroring the country. The youngest areas are in the northwest, the oldest in the center.
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 Randolph County
| Period | Randolph County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 10.2% | 11.7% | 12.3% |
| 2010–14 | 10.0% | 11.7% | 12.3% |
| 2015–19 | 10.7% | 11.1% | 11.6% |
| 2020–24 | 11.7% | 11.3% | 11.6% |
| Change | +1.4 pts | −0.4 pts | −0.6 pts |
Single-parent households are about as common in Randolph County as they are nationally: 11.7%, against 11.6%. The single-parent share is up 1.4 points from 2006–10, even as the national share fell.
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 Randolph County
Renters in Randolph County
| Period | Randolph County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 21.3% | 30.8% | 33.3% |
| 2010–14 | 23.0% | 33.1% | 35.6% |
| 2015–19 | 26.0% | 33.9% | 36.0% |
| 2020–24 | 23.4% | 32.9% | 34.8% |
| Change | +2.1 pts | +2.1 pts | +1.5 pts |
Only 23.4% of households in Randolph County rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Among homeowners, 49.6% have no mortgage at all, above the national share of 39.8%. Renting is most common in the east and least common in the west. The renter share has risen 2.1 points since 2006–10, mirroring the country.
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 Randolph County
| Period | Randolph County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 14.0% | 10.0% | 11.4% |
| 2010–14 | 12.7% | 10.1% | 11.4% |
| 2015–19 | 13.5% | 9.8% | 11.1% |
| 2020–24 | 11.8% | 8.1% | 9.6% |
| Change | −2.3 pts | −1.9 pts | −1.8 pts |
A few more homes sit empty in Randolph County than nationally: 11.8%, against 9.6%. The count includes vacation homes and homes between owners or tenants, not just abandoned ones. Vacancy has fallen 2.3 points since 2006–10, as it has nationally.
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 Randolph County
| Period | Randolph County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 1966 | 1966 | 1974 |
| 2010–14 | 1967 | 1967 | 1975 |
| 2015–19 | 1971 | 1968 | 1977 |
| 2020–24 | 1972 | 1970 | 1980 |
| Change | +6 | +4 | +6 |
Randolph County is a place of older homes: half were built before 1972, while the national median is 1980. That means established neighborhoods, and more houses that may need updating. The median year built has moved up from 1966 in 2006–10, a sign of steady new building.
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 Randolph County
| Period | Randolph County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | $578 | $953 | $965 |
| 2010–14 | $648 | $1,028 | $1,040 |
| 2015–19 | $671 | $1,165 | $1,213 |
| 2020–24 | $823 | $1,428 | $1,571 |
| Change | +$246 | +$475 | +$606 |
Rent in Randolph County runs $823 a month at the median, utilities included, well below the U.S. median of $1,571. Rent has climbed $246 a month since 2006–10, up 43%, a slower climb than the nation's. Rent takes 27.7% of the typical renter's income, just under the 30% mark often used to define affordable rent. Rents run highest in the northwest and lowest in the east.
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 Randolph County
Bachelor's degrees in Randolph County
| Period | Randolph County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 12.8% | 31.2% | 28.4% |
| 2010–14 | 12.8% | 32.4% | 29.6% |
| 2015–19 | 14.2% | 34.7% | 32.1% |
| 2020–24 | 16.6% | 37.7% | 35.6% |
| Change | +3.8 pts | +6.5 pts | +7.2 pts |
Fewer adults in Randolph County have a four-year degree than in the country as a whole: 16.6%, against 35.6% nationally. The share with a degree has risen 3.8 points since 2006–10, in line with the national trend. Randolph County has a lower share of college graduates than the great majority of Illinois counties.
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 Randolph County
| Period | Randolph County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 81.6% | 86.3% | 84.9% |
| 2010–14 | 84.5% | 87.5% | 86.1% |
| 2015–19 | 86.3% | 89.1% | 87.7% |
| 2020–24 | 89.0% | 90.3% | 89.3% |
| Change | +7.4 pts | +4.0 pts | +4.3 pts |
High school completion in Randolph County is close to the national rate: 89.0% of adults have a diploma or equivalent, against 89.3%. Since 2006–10, the share with a diploma has risen 7.4 points, as it has nationally. Randolph County has a lower share of high school graduates than the great majority of Illinois counties.
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 Randolph County
| Period | Randolph County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 6.5% | 8.7% | 8.1% |
| 2010–14 | 6.1% | 10.2% | 9.4% |
| 2015–19 | 4.9% | 6.1% | 5.6% |
| 2020–24 | 4.9% | 6.0% | 5.4% |
| Change | −1.6 pts | −2.7 pts | −2.7 pts |
Unemployment in Randolph County is close to the national rate: 4.9% of the labor force, against 5.4%. The rate is lower than in Illinois overall (6.0%). Since 2006–10, unemployment has fallen 1.6 points, as it has nationally.
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).
Randolph 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Randolph County | 2.32 | 43.6 | 11.7% | 23.4% | 11.8% | 1972 | $823 | 16.6% | 89.0% | 4.9% |
| Ste. Genevieve County | 2.57 | 43.3 | 10.9% | 17.0% | 14.4% | 1979 | $767 | 16.9% | 93.7% | 4.3% |
| Perry County | 2.36 | 42.3 | 11.6% | 19.1% | 12.9% | 1973 | $716 | 14.1% | 87.1% | 4.0% |
| Franklin County | 2.33 | 43.8 | 13.1% | 25.9% | 12.7% | 1964 | $819 | 15.5% | 89.4% | 7.4% |
| Washington County | 2.60 | 40.8 | 11.3% | 21.6% | 16.1% | 1985 | $741 | 11.1% | 85.7% | 5.3% |
| Hamilton County | 2.33 | 43.5 | 8.8% | 23.6% | 11.3% | 1971 | $617 | 19.3% | 90.5% | 4.8% |
| Crawford County | 2.34 | 42.6 | 11.1% | 30.8% | 14.1% | 1983 | $826 | 14.8% | 86.6% | 5.2% |
| White County | 2.39 | 45.3 | 10.4% | 22.9% | 15.4% | 1964 | $739 | 17.9% | 88.9% | 3.7% |
| Phelps County | 2.50 | 37.6 | 12.3% | 38.3% | 14.9% | 1986 | $845 | 32.4% | 89.8% | 4.1% |
| Posey County | 2.40 | 43.4 | 10.7% | 17.7% | 6.4% | 1975 | $797 | 25.1% | 92.9% | 2.4% |
| Maries County | 2.54 | 42.8 | 6.6% | 21.7% | 17.4% | 1985 | $595 | 15.0% | 88.3% | 4.6% |
All figures 2020–24.
Counties with similar populations: Warren County, PA · Clarion County, PA · Clark County, KY · Clark County, WI · Wakulla County, FL · Waldo County, ME · Wapello County, IA · Ware County, GA · Warren County, MO · Cidra Municipio, PR
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 Randolph 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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