Population 16,695 · Census ACS 2020–24
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Population and households in Piatt County
Household size in Piatt County
| Period | Piatt County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 2.52 | 2.69 | 2.68 |
| 2010–14 | 2.49 | 2.71 | 2.73 |
| 2015–19 | 2.46 | 2.66 | 2.71 |
| 2020–24 | 2.41 | 2.58 | 2.65 |
| Change | −0.11 | −0.11 | −0.03 |
The average household in Piatt County has 2.41 people, under the U.S. average of 2.65. Household size has dropped from 2.52 in 2006–10, a much bigger shift than nationally. The biggest households, usually families with children, are concentrated in the southwest.
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 Piatt County
| Period | Piatt County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 41.8 | 37.6 | 37.7 |
| 2010–14 | 43.4 | 38.5 | 38.6 |
| 2015–19 | 43.1 | 39.6 | 39.6 |
| 2020–24 | 44.2 | 40.2 | 40.1 |
| Change | +2.3 | +2.6 | +2.3 |
Piatt County skews older: half of its residents are older than 44.2, well above the national median of 40.1. That usually means more empty nesters and retirees, and fewer young families. Since 2006–10, the median age has climbed from 41.8, 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 Piatt County
| Period | Piatt County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 8.9% | 11.7% | 12.3% |
| 2010–14 | 8.3% | 11.7% | 12.3% |
| 2015–19 | 8.5% | 11.1% | 11.6% |
| 2020–24 | 6.8% | 11.3% | 11.6% |
| Change | −2.1 pts | −0.4 pts | −0.6 pts |
Single parents head only 6.8% of households in Piatt County, well below the national share of 11.6%. The single-parent share is down 2.1 points from 2006–10, a much bigger shift than nationally. Few Illinois counties have a lower share of single-parent households: only three of 102.
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 Piatt County
Renters in Piatt County
| Period | Piatt County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 18.3% | 30.8% | 33.3% |
| 2010–14 | 17.2% | 33.1% | 35.6% |
| 2015–19 | 17.5% | 33.9% | 36.0% |
| 2020–24 | 15.2% | 32.9% | 34.8% |
| Change | −3.1 pts | +2.1 pts | +1.5 pts |
Piatt County is largely a place of homeowners: only 15.2% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Just over four in ten owners (42.0%) have paid off their mortgages, about the same as nationally. Since 2006–10, the renter share has fallen 3.1 points, 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 Piatt County
| Period | Piatt County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 9.8% | 10.0% | 11.4% |
| 2010–14 | 9.6% | 10.1% | 11.4% |
| 2015–19 | 11.5% | 9.8% | 11.1% |
| 2020–24 | 6.6% | 8.1% | 9.6% |
| Change | −3.2 pts | −1.9 pts | −1.8 pts |
Fewer homes sit empty in Piatt County than nationally: 6.6%, against 9.6% for the U.S. Since 2006–10, vacancy has fallen 3.2 points, as it has nationally. Piatt County has a lower vacancy rate than at least four in five Illinois counties.
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 Piatt County
| Period | Piatt County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 1964 | 1966 | 1974 |
| 2010–14 | 1966 | 1967 | 1975 |
| 2015–19 | 1969 | 1968 | 1977 |
| 2020–24 | 1972 | 1970 | 1980 |
| Change | +7 | +4 | +6 |
Housing in Piatt County leans older: the median home dates to 1972, against 1980 nationally. That is in line with the rest of Illinois. The median year built has moved up from 1964 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 Piatt County
| Period | Piatt County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | $743 | $953 | $965 |
| 2010–14 | $747 | $1,028 | $1,040 |
| 2015–19 | $786 | $1,165 | $1,213 |
| 2020–24 | $1,124 | $1,428 | $1,571 |
| Change | +$380 | +$475 | +$606 |
A typical rental in Piatt County costs $1,124 a month with utilities, well below the national median of $1,571. Rents are up $380 a month from 2006–10, a 51% rise, a slower climb than the nation's. The typical renter here spends 23.8% of household income on rent, comfortably under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally. Renters on a budget will find the lowest rents in the south; 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 Piatt County
Bachelor's degrees in Piatt County
| Period | Piatt County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 23.6% | 31.2% | 28.4% |
| 2010–14 | 26.7% | 32.4% | 29.6% |
| 2015–19 | 28.5% | 34.7% | 32.1% |
| 2020–24 | 32.5% | 37.7% | 35.6% |
| Change | +8.9 pts | +6.5 pts | +7.2 pts |
College degrees are a little less common in Piatt County than nationally: 32.5% of adults 25 and older have a bachelor's or higher, against 35.6%. The share with a degree has risen 8.9 points since 2006–10, in line with the national trend. College graduates are most concentrated in the west and least in the south.
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 Piatt County
| Period | Piatt County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 89.8% | 86.3% | 84.9% |
| 2010–14 | 93.5% | 87.5% | 86.1% |
| 2015–19 | 93.9% | 89.1% | 87.7% |
| 2020–24 | 96.3% | 90.3% | 89.3% |
| Change | +6.5 pts | +4.0 pts | +4.3 pts |
High school completion is high in Piatt County: 96.3% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. The share with a diploma is up 6.5 points from 2006–10, as it has nationally. No other Illinois county has a higher share of high school graduates.
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 Piatt County
| Period | Piatt County | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 3.8% | 8.7% | 8.1% |
| 2010–14 | 5.7% | 10.2% | 9.4% |
| 2015–19 | 4.9% | 6.1% | 5.6% |
| 2020–24 | 3.0% | 6.0% | 5.4% |
| Change | −0.8 pts | −2.7 pts | −2.7 pts |
Unemployment in Piatt County has been low: just 3.0% of the labor force was out of work and looking, well below the national rate of 5.4%. Unemployment has edged down 0.8 points since 2006–10, a smaller shift than nationally. 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).
Piatt 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Piatt County | 2.41 | 44.2 | 6.8% | 15.2% | 6.6% | 1972 | $1,124 | 32.5% | 96.3% | 3.0% |
| Champaign County | 2.33 | 35.0 | 9.9% | 46.0% | 10.8% | 1981 | $1,115 | 47.8% | 93.1% | 4.6% |
| De Witt County | 2.33 | 44.1 | 8.8% | 21.5% | 9.5% | 1961 | $798 | 23.0% | 93.4% | 4.3% |
| Logan County | 2.23 | 41.8 | 11.9% | 31.5% | 6.7% | 1963 | $825 | 21.3% | 93.0% | 4.0% |
| Vermilion County | 2.36 | 42.0 | 13.9% | 29.8% | 12.3% | 1958 | $843 | 19.6% | 91.2% | 6.6% |
| Menard County | 2.33 | 43.6 | 10.5% | 20.5% | 6.1% | 1975 | $879 | 28.5% | 94.8% | 3.5% |
| Fountain County | 2.42 | 43.3 | 13.2% | 25.4% | 12.3% | 1962 | $802 | 14.8% | 91.3% | 4.6% |
| Montgomery County | 2.44 | 40.4 | 9.7% | 19.7% | 7.0% | 1964 | $860 | 20.5% | 89.4% | 3.5% |
| Cass County | 2.49 | 39.1 | 11.3% | 24.1% | 11.2% | 1966 | $745 | 20.3% | 84.7% | 3.9% |
| Schuyler County | 2.16 | 47.8 | 10.2% | 20.6% | 18.8% | 1971 | $876 | 19.1% | 93.1% | 4.8% |
| Brown County | 1.98 | 42.5 | 9.7% | 28.2% | 9.4% | 1967 | $707 | 13.2% | 78.6% | 2.6% |
All figures 2020–24.
Counties with similar populations: Saline County, MO · Hancock County, IL · Hardee County, FL · Hardeman County, TN · Harrison County, KY · Holmes County, FL · Hopewell City, VA · Roseau County, MN · Rush County, IN · Russell County, KY
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 Piatt 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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