Population 5,127 · Census ACS 2020–24
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Population and households in ZIP 61231
Household size in ZIP 61231
| Period | ZIP 61231 | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 2.33 | 2.69 | 2.68 |
| 2010–14 | 2.24 | 2.71 | 2.73 |
| 2015–19 | 2.23 | 2.66 | 2.71 |
| 2020–24 | 2.31 | 2.58 | 2.65 |
| Change | −0.03 | −0.11 | −0.03 |
ZIP 61231 is a place of small households, averaging 2.31 people against 2.65 for the U.S., which points to many singles, couples and roommates and relatively few children. The biggest households, usually families with children, are concentrated in the southeast.
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 ZIP 61231
| Period | ZIP 61231 | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 42.8 | 37.6 | 37.7 |
| 2010–14 | 43.6 | 38.5 | 38.6 |
| 2015–19 | 48.0 | 39.6 | 39.6 |
| 2020–24 | 40.5 | 40.2 | 40.1 |
| Change | −2.3 | +2.6 | +2.3 |
At 40.5, the median age in ZIP 61231 is close to the national median of 40.1, so its age mix looks much like the country's. The median age has dropped from 42.8 in 2006–10, even as the national median rose. Residents skew youngest in the south and oldest in the northeast.
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 ZIP 61231
| Period | ZIP 61231 | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 14.9% | 11.7% | 12.3% |
| 2010–14 | 11.9% | 11.7% | 12.3% |
| 2015–19 | 7.8% | 11.1% | 11.6% |
| 2020–24 | 7.3% | 11.3% | 11.6% |
| Change | −7.6 pts | −0.4 pts | −0.6 pts |
Single-parent households are relatively rare in ZIP 61231: 7.3% of households, against 11.6% nationally. The single-parent share is down 7.6 points from 2006–10, a much bigger shift than 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 ZIP 61231
Renters in ZIP 61231
| Period | ZIP 61231 | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 32.6% | 30.8% | 33.3% |
| 2010–14 | 29.7% | 33.1% | 35.6% |
| 2015–19 | 31.7% | 33.9% | 36.0% |
| 2020–24 | 26.0% | 32.9% | 34.8% |
| Change | −6.7 pts | +2.1 pts | +1.5 pts |
Just over a quarter of households in ZIP 61231 rent their homes (26.0%), below the national share of 34.8%; the rest own. Among homeowners, 39.6% have no mortgage at all, about the same as nationally. Rentals cluster in the south; owners are most common in the northeast. The renter share has fallen 6.7 points since 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 ZIP 61231
| Period | ZIP 61231 | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 7.5% | 10.0% | 11.4% |
| 2010–14 | 6.2% | 10.1% | 11.4% |
| 2015–19 | 13.0% | 9.8% | 11.1% |
| 2020–24 | 9.8% | 8.1% | 9.6% |
| Change | +2.3 pts | −1.9 pts | −1.8 pts |
About as many homes sit empty in ZIP 61231 as nationally: 9.8%, against 9.6%. The rate is higher than in Illinois overall (8.1%). Vacancy is up 2.3 points from 2006–10, 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 ZIP 61231
| Period | ZIP 61231 | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 1947 | 1966 | 1974 |
| 2010–14 | 1950 | 1967 | 1975 |
| 2015–19 | 1957 | 1968 | 1977 |
| 2020–24 | 1957 | 1970 | 1980 |
| Change | +10 | +4 | +6 |
ZIP 61231 is a place of older homes: half were built before 1957, 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 1947 in 2006–10, a sign of steady new building. The newest homes are mostly in the southwest, the oldest in the southeast.
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 ZIP 61231
| Period | ZIP 61231 | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | $577 | $953 | $965 |
| 2010–14 | $580 | $1,028 | $1,040 |
| 2015–19 | $692 | $1,165 | $1,213 |
| 2020–24 | $788 | $1,428 | $1,571 |
| Change | +$210 | +$475 | +$606 |
Rent in ZIP 61231 runs $788 a month at the median, utilities included, well below the U.S. median of $1,571. Rent has climbed $210 a month since 2006–10, up 36%, a slower climb than the nation's. Rent takes 23.0% of the typical renter's income, comfortably under the 30% mark often used to define affordable rent. Renters on a budget will find the lowest rents in the west; the highest are in the northeast.
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 ZIP 61231
Bachelor's degrees in ZIP 61231
| Period | ZIP 61231 | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 17.1% | 31.2% | 28.4% |
| 2010–14 | 17.4% | 32.4% | 29.6% |
| 2015–19 | 20.3% | 34.7% | 32.1% |
| 2020–24 | 24.1% | 37.7% | 35.6% |
| Change | +6.9 pts | +6.5 pts | +7.2 pts |
Fewer adults in ZIP 61231 have a four-year degree than in the country as a whole: 24.1%, against 35.6% nationally. The share with a degree is up 6.9 points from 2006–10, in line with the national trend. College graduates are most concentrated in the southwest and least in the northwest.
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 ZIP 61231
| Period | ZIP 61231 | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 88.0% | 86.3% | 84.9% |
| 2010–14 | 92.3% | 87.5% | 86.1% |
| 2015–19 | 92.1% | 89.1% | 87.7% |
| 2020–24 | 96.2% | 90.3% | 89.3% |
| Change | +8.2 pts | +4.0 pts | +4.3 pts |
High school completion is high in ZIP 61231: 96.2% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. Since 2006–10, the share with a diploma has risen 8.2 points, mirroring the country. ZIP 61231 has a higher share of high school graduates than the great majority of Illinois ZIP codes.
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 ZIP 61231
| Period | ZIP 61231 | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 5.7% | 8.7% | 8.1% |
| 2010–14 | 4.2% | 10.2% | 9.4% |
| 2015–19 | 3.1% | 6.1% | 5.6% |
| 2020–24 | 2.8% | 6.0% | 5.4% |
| Change | −2.9 pts | −2.7 pts | −2.7 pts |
Unemployment in ZIP 61231 has been low: just 2.8% of the labor force was out of work and looking, well below the national rate of 5.4%. Unemployment is down 2.9 points from 2006–10, in line with the national trend. 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).
ZIP 61231 compared with nearby ZIP codes
| ZIP code | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| ZIP 61231 | 2.31 | 40.5 | 7.3% | 26.0% | 9.8% | 1957 | $788 | 24.1% | 96.2% | 2.8% |
| ZIP 61260 | 2.29 | 34.7 | 6.2% | 17.7% | 9.6% | 1956 | $783 | 12.4% | 92.1% | 1.2% |
| ZIP 61263 | 2.30 | 49.1 | 8.5% | 14.2% | 12.0% | 1965 | $803 | 23.6% | 88.8% | 1.8% |
| ZIP 61486 | 2.29 | 48.5 | 11.1% | 10.4% | 7.4% | 1966 | $912 | 16.9% | 92.9% | 6.0% |
| ZIP 61476 | 2.25 | 41.8 | 8.2% | 7.7% | 12.2% | 1944 | $1,000 | 29.4% | 95.1% | 6.4% |
| ZIP 61279 | 2.58 | 40.2 | 12.8% | 17.8% | 5.9% | 1955 | $908 | 15.4% | 95.3% | 3.1% |
| ZIP 61276 | 2.69 | 49.9 | 1.6% | 9.6% | 9.6% | 1969 | $725 | 13.4% | 100.0% | 0.0% |
| ZIP 61272 | 2.23 | 41.5 | 10.3% | 20.3% | 9.6% | 1964 | $622 | 11.6% | 92.5% | 2.3% |
| ZIP 61281 | 2.59 | 46.3 | 4.8% | 6.4% | 12.2% | 1972 | $816 | 25.9% | 92.7% | 2.7% |
| ZIP 61465 | 2.30 | 50.1 | 11.6% | 11.4% | 13.0% | 1960 | $587 | 15.1% | 92.3% | 2.6% |
| ZIP 61466 | 2.46 | 41.5 | 4.7% | 4.1% | 4.4% | 1940 | $760 | 29.6% | 96.7% | 3.0% |
All figures 2020–24.
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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 ZIP 61231. 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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