Population 25,679 · Census ACS 2020–24
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Population and households in ZIP 40031
Household size in ZIP 40031
| Period | ZIP 40031 | Louisville area | Kentucky | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.57 | 2.51 | 2.51 | 2.68 |
| 2010–14 | 2.73 | 2.55 | 2.53 | 2.73 |
| 2015–19 | 2.69 | 2.55 | 2.52 | 2.71 |
| 2020–24 | 2.87 | 2.50 | 2.51 | 2.65 |
| Change | +0.30 | −0.01 | −0.00 | −0.03 |
Households in ZIP 40031 average 2.87 people, above the national 2.65, so families with children are more common here. Since 2006–10, household size has climbed from 2.57, even as the national average fell. Of the 203 Kentucky ZIP codes with 5,000+ people, only 11 have 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 ZIP 40031
| Period | ZIP 40031 | Louisville area | Kentucky | U.S. |
|---|---|---|---|---|
| 2006–10 | 38.9 | 38.5 | 38.5 | 37.7 |
| 2010–14 | 39.6 | 39.4 | 39.3 | 38.6 |
| 2015–19 | 38.7 | 40.0 | 40.0 | 39.6 |
| 2020–24 | 39.0 | 40.2 | 39.9 | 40.1 |
| Change | +0.1 | +1.7 | +1.5 | +2.3 |
At 39.0, the median age in ZIP 40031 is close to the national median of 40.1, so its age mix looks much like the country's. Residents skew youngest in the center and oldest in the south.
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 40031
| Period | ZIP 40031 | Louisville area | Kentucky | U.S. |
|---|---|---|---|---|
| 2006–10 | 15.5% | 12.6% | 11.7% | 12.3% |
| 2010–14 | 11.6% | 12.6% | 11.9% | 12.3% |
| 2015–19 | 12.2% | 11.6% | 11.8% | 11.6% |
| 2020–24 | 17.5% | 12.4% | 11.9% | 11.6% |
| Change | +2.0 pts | −0.2 pts | +0.2 pts | −0.6 pts |
Single parents head just over one in six households in ZIP 40031 (17.5%), well above the national share of 11.6%. The single-parent share has risen 2.0 points since 2006–10, even as the national share fell. Only 14 of the 203 Kentucky ZIP codes with 5,000+ people have a higher share of single-parent households.
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 40031
Renters in ZIP 40031
| Period | ZIP 40031 | Louisville area | Kentucky | U.S. |
|---|---|---|---|---|
| 2006–10 | 24.4% | 30.5% | 30.1% | 33.3% |
| 2010–14 | 22.3% | 32.3% | 32.3% | 35.6% |
| 2015–19 | 25.0% | 32.5% | 32.8% | 36.0% |
| 2020–24 | 18.9% | 31.1% | 31.7% | 34.8% |
| Change | −5.5 pts | +0.6 pts | +1.5 pts | +1.5 pts |
ZIP 40031 is largely a place of homeowners: only 18.9% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Among homeowners, 40.3% have no mortgage at all, about the same as nationally. The renter share has fallen 5.5 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 40031
| Period | ZIP 40031 | Louisville area | Kentucky | U.S. |
|---|---|---|---|---|
| 2006–10 | 9.1% | 9.8% | 12.2% | 11.4% |
| 2010–14 | 10.1% | 9.8% | 11.9% | 11.4% |
| 2015–19 | 6.0% | 9.8% | 12.3% | 11.1% |
| 2020–24 | 5.8% | 7.9% | 10.6% | 9.6% |
| Change | −3.3 pts | −1.9 pts | −1.6 pts | −1.8 pts |
Fewer homes sit empty in ZIP 40031 than nationally: 5.8%, against 9.6% for the U.S. Vacancy has fallen 3.3 points since 2006–10, in line with the national trend. ZIP 40031 has a lower vacancy rate than at least four in five Kentucky ZIP codes.
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 40031
| Period | ZIP 40031 | Louisville area | Kentucky | U.S. |
|---|---|---|---|---|
| 2006–10 | 1989 | 1975 | 1977 | 1974 |
| 2010–14 | 1989 | 1976 | 1979 | 1975 |
| 2015–19 | 1993 | 1976 | 1980 | 1977 |
| 2020–24 | 1993 | 1980 | 1982 | 1980 |
| Change | +5 | +5 | +5 | +6 |
Much of the housing in ZIP 40031 is relatively new: half of its homes were built after 1993, compared with 1980 for the U.S. as a whole. The median year built has moved up from 1989 in 2006–10, a sign of steady new building. ZIP 40031 has newer homes than at least four in five Kentucky ZIP codes.
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 40031
| Period | ZIP 40031 | Louisville area | Kentucky | U.S. |
|---|---|---|---|---|
| 2006–10 | $735 | $769 | $657 | $965 |
| 2010–14 | $814 | $826 | $728 | $1,040 |
| 2015–19 | $920 | $928 | $814 | $1,213 |
| 2020–24 | $1,099 | $1,200 | $1,024 | $1,571 |
| Change | +$364 | +$431 | +$367 | +$606 |
Rent in ZIP 40031 runs $1,099 a month at the median, utilities included, well below the U.S. median of $1,571. Rent has climbed $364 a month since 2006–10, up 50%, a slower climb than the nation's. The typical renter here spends 24.2% of household income on rent, comfortably under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally. Rents run highest in the center and lowest in the south.
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 40031
Bachelor's degrees in ZIP 40031
| Period | ZIP 40031 | Louisville area | Kentucky | U.S. |
|---|---|---|---|---|
| 2006–10 | 24.1% | 24.9% | 21.3% | 28.4% |
| 2010–14 | 26.1% | 26.7% | 22.5% | 29.6% |
| 2015–19 | 27.0% | 29.0% | 24.5% | 32.1% |
| 2020–24 | 35.6% | 32.8% | 27.6% | 35.6% |
| Change | +11.6 pts | +7.9 pts | +6.2 pts | +7.2 pts |
College degrees are just as common in ZIP 40031 as nationally: 35.6% of adults 25 and older have a bachelor's or higher. Since 2006–10, the share with a degree has risen 11.6 points, in line with the national trend.
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 40031
| Period | ZIP 40031 | Louisville area | Kentucky | U.S. |
|---|---|---|---|---|
| 2006–10 | 83.3% | 86.4% | 81.7% | 84.9% |
| 2010–14 | 88.3% | 87.8% | 83.9% | 86.1% |
| 2015–19 | 89.7% | 90.1% | 86.4% | 87.7% |
| 2020–24 | 91.4% | 91.1% | 88.8% | 89.3% |
| Change | +8.2 pts | +4.7 pts | +7.2 pts | +4.3 pts |
High school completion in ZIP 40031 is a bit above the national rate: 91.4% of adults have a diploma or equivalent, against 89.3%. The picture is much the same across the Louisville area. Since 2006–10, the share with a diploma has risen 8.2 points, mirroring the country.
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 40031
| Period | ZIP 40031 | Louisville area | Kentucky | U.S. |
|---|---|---|---|---|
| 2006–10 | 7.8% | 8.4% | 8.4% | 8.1% |
| 2010–14 | 7.4% | 9.1% | 9.5% | 9.4% |
| 2015–19 | 2.9% | 5.2% | 5.8% | 5.6% |
| 2020–24 | 2.7% | 4.8% | 5.1% | 5.4% |
| Change | −5.1 pts | −3.6 pts | −3.3 pts | −2.7 pts |
The job market in ZIP 40031 has been strong: just 2.7% of the labor force was out of work and looking, well below the national rate of 5.4%. Only 19 of the 203 Kentucky ZIP codes with 5,000+ people have lower unemployment. Unemployment is down 5.1 points from 2006–10, 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).
ZIP 40031 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 40031 | 2.87 | 39.0 | 17.5% | 18.9% | 5.8% | 1993 | $1,099 | 35.6% | 91.4% | 2.7% |
| ZIP 40010 | 2.78 | 36.0 | 6.6% | 22.1% | 3.4% | 2005 | $1,577 | 55.5% | 99.8% | 0.0% |
| ZIP 40014 | 2.84 | 41.0 | 10.1% | 11.9% | 3.1% | 1996 | $1,241 | 48.8% | 96.4% | 3.6% |
| ZIP 40068 | 2.49 | 47.9 | 5.1% | 8.7% | 5.0% | 1991 | $923 | 27.4% | 90.3% | 2.1% |
| ZIP 40077 | 2.47 | 44.0 | 9.2% | 12.2% | 9.0% | 1988 | $885 | 31.7% | 94.8% | 1.9% |
| ZIP 40055 | 2.64 | 44.3 | 11.7% | 13.6% | 11.9% | 1994 | $1,241 | 19.4% | 87.1% | 10.2% |
| ZIP 40056 | 2.72 | 43.2 | 8.3% | 6.1% | 4.0% | 1978 | $1,526 | 47.4% | 94.4% | 4.4% |
| ZIP 40070 | 2.43 | 48.4 | 3.7% | 12.0% | 7.8% | 1981 | $1,446 | 22.2% | 83.2% | 6.3% |
| ZIP 47104 | 2.21 | 56.6 | 4.5% | 23.2% | 8.9% | 1991 | $970 | 14.5% | 94.3% | 2.4% |
| ZIP 40026 | 2.98 | 38.8 | 10.4% | 9.7% | 4.8% | 1990 | $2,008 | 63.8% | 98.8% | 3.4% |
| ZIP 40059 | 2.62 | 46.8 | 5.8% | 12.2% | 6.7% | 1999 | $1,872 | 71.1% | 98.3% | 4.5% |
All figures 2020–24.
Zip codes with similar populations: 02745, MA · 08087, NJ · 11010, NY · 11552, NY · 27565, NC · 28681, NC · 30327, GA · 90403, CA · 60053, IL · 60175, IL
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 40031. 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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