Population 137,675 · Census ACS 2020–24
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Population and households in Kendall County
Household size in Kendall County
| Period | Kendall County | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 3.00 | 2.79 | 2.69 | 2.68 |
| 2010–14 | 3.13 | 2.82 | 2.71 | 2.73 |
| 2015–19 | 3.13 | 2.75 | 2.66 | 2.71 |
| 2020–24 | 3.09 | 2.66 | 2.58 | 2.65 |
| Change | +0.09 | −0.12 | −0.11 | −0.03 |
Households in Kendall County are large by national standards, averaging 3.09 people against 2.65 for the U.S. That usually means more families with children at home. Household size has climbed from 3.00 in 2006–10, even as the national average fell. Only one other Illinois county has larger households.
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 Kendall County
| Period | Kendall County | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 33.3 | 36.8 | 37.6 | 37.7 |
| 2010–14 | 34.7 | 37.8 | 38.5 | 38.6 |
| 2015–19 | 35.2 | 38.9 | 39.6 | 39.6 |
| 2020–24 | 36.4 | 39.7 | 40.2 | 40.1 |
| Change | +3.1 | +3.0 | +2.6 | +2.3 |
The median resident of Kendall County is 36.4 years old, a few years younger than the national median of 40.1. Since 2006–10, the median age has climbed from 33.3, as it has nationally. Of Illinois' 102 counties, only two are younger.
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 Kendall County
| Period | Kendall County | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 9.1% | 12.0% | 11.7% | 12.3% |
| 2010–14 | 9.5% | 12.0% | 11.7% | 12.3% |
| 2015–19 | 11.7% | 11.2% | 11.1% | 11.6% |
| 2020–24 | 12.2% | 11.5% | 11.3% | 11.6% |
| Change | +3.1 pts | −0.5 pts | −0.4 pts | −0.6 pts |
Single-parent households are about as common in Kendall County as they are nationally: 12.2%, against 11.6%. Since 2006–10, the single-parent share has risen 3.1 points, 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 Kendall County
Renters in Kendall County
| Period | Kendall County | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 14.2% | 32.1% | 30.8% | 33.3% |
| 2010–14 | 16.9% | 34.8% | 33.1% | 35.6% |
| 2015–19 | 16.4% | 35.5% | 33.9% | 36.0% |
| 2020–24 | 16.0% | 34.5% | 32.9% | 34.8% |
| Change | +1.8 pts | +2.3 pts | +2.1 pts | +1.5 pts |
Only 16.0% of households in Kendall County rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Among homeowners, 23.0% have no mortgage at all, well below the national share of 39.8%. The renter share has risen 1.8 points since 2006–10, mirroring the country. Of Illinois' 102 counties, only eight have a lower share of renters.
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 Kendall County
| Period | Kendall County | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.4% | 9.8% | 10.0% | 11.4% |
| 2010–14 | 6.2% | 9.8% | 10.1% | 11.4% |
| 2015–19 | 4.0% | 8.9% | 9.8% | 11.1% |
| 2020–24 | 3.9% | 7.2% | 8.1% | 9.6% |
| Change | −2.5 pts | −2.6 pts | −1.9 pts | −1.8 pts |
Only 3.9% of homes in Kendall County are vacant, far below the national rate of 9.6%, which usually means strong demand for housing. Vacancy is down 2.5 points from 2006–10, in line with the national trend. No other Illinois county has a lower vacancy rate.
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 Kendall County
| Period | Kendall County | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 1994 | 1966 | 1966 | 1974 |
| 2010–14 | 1996 | 1967 | 1967 | 1975 |
| 2015–19 | 1995 | 1967 | 1968 | 1977 |
| 2020–24 | 1997 | 1970 | 1970 | 1980 |
| Change | +3 | +4 | +4 | +6 |
Kendall County has newer housing than the country as a whole: the median home was built in 1997, versus 1980 nationally. The newest homes are mostly in the southeast, the oldest in the southwest. Kendall County has the newest homes of any Illinois county.
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 Kendall County
| Period | Kendall County | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,198 | $1,060 | $953 | $965 |
| 2010–14 | $1,397 | $1,142 | $1,028 | $1,040 |
| 2015–19 | $1,520 | $1,306 | $1,165 | $1,213 |
| 2020–24 | $1,934 | $1,602 | $1,428 | $1,571 |
| Change | +$736 | +$542 | +$475 | +$606 |
The median renter in Kendall County pays $1,934 a month for rent and utilities, well above the national median of $1,571. Rents are up $736 a month from 2006–10, a 61% jump, roughly in step with the nation. The typical renter here spends 29.9% of household income on rent, just under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally. No other Illinois county has higher rents.
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 Kendall County
Bachelor's degrees in Kendall County
| Period | Kendall County | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 33.7% | 33.9% | 31.2% | 28.4% |
| 2010–14 | 35.4% | 35.2% | 32.4% | 29.6% |
| 2015–19 | 37.1% | 37.9% | 34.7% | 32.1% |
| 2020–24 | 36.6% | 40.9% | 37.7% | 35.6% |
| Change | +2.9 pts | +7.0 pts | +6.5 pts | +7.2 pts |
College degrees are about as common in Kendall County as nationally: 36.6% of adults 25 and older have a bachelor's or higher, against 35.6%. The share is lower than in the Chicago area overall (40.9%). The share with a degree is up 2.9 points from 2006–10, mirroring the country.
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 Kendall County
| Period | Kendall County | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 92.5% | 85.6% | 86.3% | 84.9% |
| 2010–14 | 93.5% | 86.7% | 87.5% | 86.1% |
| 2015–19 | 92.7% | 88.4% | 89.1% | 87.7% |
| 2020–24 | 94.1% | 89.5% | 90.3% | 89.3% |
| Change | +1.5 pts | +3.9 pts | +4.0 pts | +4.3 pts |
High school completion in Kendall County is above the national rate: 94.1% of adults have a diploma or equivalent, against 89.3%. The share with a diploma has risen 1.5 points since 2006–10, as it has nationally. Kendall County has a higher share of high school graduates than at least four in five 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 Kendall County
| Period | Kendall County | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.7% | 9.1% | 8.7% | 8.1% |
| 2010–14 | 7.5% | 10.8% | 10.2% | 9.4% |
| 2015–19 | 4.8% | 6.3% | 6.1% | 5.6% |
| 2020–24 | 4.3% | 6.3% | 6.0% | 5.4% |
| Change | −2.3 pts | −2.8 pts | −2.7 pts | −2.7 pts |
Jobs have been a little easier to find in Kendall County than nationally: unemployment was 4.3%, against 5.4%. Unemployment has fallen 2.3 points since 2006–10, in line with the national trend. 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).
Kendall 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Kendall County | 3.09 | 36.4 | 12.2% | 16.0% | 3.9% | 1997 | $1,934 | 36.6% | 94.1% | 4.3% |
| Will County | 2.93 | 39.8 | 10.3% | 17.2% | 4.9% | 1987 | $1,764 | 38.2% | 91.8% | 4.9% |
| Lake County | 2.63 | 40.6 | 14.3% | 28.3% | 9.5% | 1973 | $1,238 | 26.1% | 89.9% | 6.0% |
| Porter County | 2.57 | 41.5 | 10.0% | 22.3% | 7.0% | 1984 | $1,281 | 31.1% | 93.9% | 4.5% |
| Whiteside County | 2.38 | 43.6 | 12.5% | 23.1% | 11.5% | 1961 | $937 | 20.3% | 91.9% | 4.4% |
| LaPorte County | 2.45 | 41.9 | 14.5% | 25.3% | 12.2% | 1969 | $1,070 | 22.3% | 90.9% | 5.0% |
| St. Joseph County | 2.52 | 38.0 | 11.4% | 31.0% | 9.7% | 1969 | $1,155 | 34.2% | 91.2% | 5.3% |
| Scott County | 2.39 | 40.1 | 10.8% | 30.0% | 7.7% | 1972 | $1,235 | 37.3% | 93.6% | 3.5% |
| Elkhart County | 2.95 | 37.0 | 12.6% | 28.4% | 10.4% | 1977 | $1,093 | 20.4% | 81.7% | 3.6% |
| Cedar County | 2.42 | 44.8 | 10.1% | 18.5% | 9.2% | 1967 | $916 | 23.7% | 95.8% | 2.2% |
| LaGrange County | 3.30 | 33.3 | 8.5% | 17.0% | 11.9% | 1983 | $846 | 10.5% | 54.4% | 3.9% |
All figures 2020–24.
Counties with similar populations: Blount County, TN · Cache County, UT · Calhoun County, MI · Cambria County, PA · Linn County, OR · Berkeley County, WV · Madison County, IN · Monroe County, IN · Napa County, CA · Pickens County, SC
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 Kendall 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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