Population 30,834 · Census ACS 2020–24
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Population and households in ZIP 40004
Household size in ZIP 40004
| Period | ZIP 40004 | Louisville area | Kentucky | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.54 | 2.51 | 2.51 | 2.68 |
| 2010–14 | 2.60 | 2.55 | 2.53 | 2.73 |
| 2015–19 | 2.53 | 2.55 | 2.52 | 2.71 |
| 2020–24 | 2.43 | 2.50 | 2.51 | 2.65 |
| Change | −0.11 | −0.01 | −0.00 | −0.03 |
The average household in ZIP 40004 has 2.43 people, under the U.S. average of 2.65. The Louisville area as a whole looks much the same. Household size has dropped from 2.54 in 2006–10, a much bigger shift than nationally.
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 40004
| Period | ZIP 40004 | Louisville area | Kentucky | U.S. |
|---|---|---|---|---|
| 2006–10 | 36.9 | 38.5 | 38.5 | 37.7 |
| 2010–14 | 38.1 | 39.4 | 39.3 | 38.6 |
| 2015–19 | 39.2 | 40.0 | 40.0 | 39.6 |
| 2020–24 | 40.8 | 40.2 | 39.9 | 40.1 |
| Change | +3.8 | +1.7 | +1.5 | +2.3 |
At 40.8, the median age in ZIP 40004 is close to the national median of 40.1, so its age mix looks much like the country's. The median age has climbed from 36.9 in 2006–10, as it has nationally. Residents skew youngest in the northeast and 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 ZIP 40004
| Period | ZIP 40004 | Louisville area | Kentucky | U.S. |
|---|---|---|---|---|
| 2006–10 | 12.5% | 12.6% | 11.7% | 12.3% |
| 2010–14 | 14.4% | 12.6% | 11.9% | 12.3% |
| 2015–19 | 9.7% | 11.6% | 11.8% | 11.6% |
| 2020–24 | 11.1% | 12.4% | 11.9% | 11.6% |
| Change | −1.4 pts | −0.2 pts | +0.2 pts | −0.6 pts |
Single parents head just over one in ten households in ZIP 40004 (11.1%), close to the national share of 11.6%. Single parents are less common here than in the Louisville area as a whole (12.4%). Since 2006–10, the single-parent share has edged down 1.4 points, as it has 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 40004
Renters in ZIP 40004
| Period | ZIP 40004 | Louisville area | Kentucky | U.S. |
|---|---|---|---|---|
| 2006–10 | 26.7% | 30.5% | 30.1% | 33.3% |
| 2010–14 | 28.3% | 32.3% | 32.3% | 35.6% |
| 2015–19 | 26.0% | 32.5% | 32.8% | 36.0% |
| 2020–24 | 26.5% | 31.1% | 31.7% | 34.8% |
| Change | −0.2 pts | +0.6 pts | +1.5 pts | +1.5 pts |
Most households in ZIP 40004 own their homes; 26.5% rent, below the national share of 34.8%. About four in ten owners (40.9%) have paid off their mortgages, about the same as nationally. Rentals cluster in the east; owners are most common in the southwest.
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 40004
| Period | ZIP 40004 | Louisville area | Kentucky | U.S. |
|---|---|---|---|---|
| 2006–10 | 7.5% | 9.8% | 12.2% | 11.4% |
| 2010–14 | 8.4% | 9.8% | 11.9% | 11.4% |
| 2015–19 | 7.6% | 9.8% | 12.3% | 11.1% |
| 2020–24 | 6.0% | 7.9% | 10.6% | 9.6% |
| Change | −1.5 pts | −1.9 pts | −1.6 pts | −1.8 pts |
Fewer homes sit empty in ZIP 40004 than nationally: 6.0%, against 9.6% for the U.S. Vacancy has fallen 1.5 points since 2006–10, as it has nationally. ZIP 40004 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 40004
| Period | ZIP 40004 | Louisville area | Kentucky | U.S. |
|---|---|---|---|---|
| 2006–10 | 1985 | 1975 | 1977 | 1974 |
| 2010–14 | 1986 | 1976 | 1979 | 1975 |
| 2015–19 | 1988 | 1976 | 1980 | 1977 |
| 2020–24 | 1991 | 1980 | 1982 | 1980 |
| Change | +6 | +5 | +5 | +6 |
ZIP 40004 has newer housing than the country as a whole: the median home was built in 1991, versus 1980 nationally. The median year built has moved up from 1985 in 2006–10, a sign of steady new building. Newer construction is concentrated in the southeast, while the center has the oldest housing.
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 40004
| Period | ZIP 40004 | Louisville area | Kentucky | U.S. |
|---|---|---|---|---|
| 2006–10 | $670 | $769 | $657 | $965 |
| 2010–14 | $759 | $826 | $728 | $1,040 |
| 2015–19 | $789 | $928 | $814 | $1,213 |
| 2020–24 | $994 | $1,200 | $1,024 | $1,571 |
| Change | +$323 | +$431 | +$367 | +$606 |
The median renter in ZIP 40004 pays $994 a month for rent and utilities, well below the national median of $1,571. Rent has climbed $323 a month since 2006–10, up 48%, a slower climb than the nation's. Rent takes 33.0% of the typical renter's income, well over the 30% mark often used to define affordable rent, so many renters here are stretched. Rents run highest in the southeast and lowest in the north.
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 40004
Bachelor's degrees in ZIP 40004
| Period | ZIP 40004 | Louisville area | Kentucky | U.S. |
|---|---|---|---|---|
| 2006–10 | 15.6% | 24.9% | 21.3% | 28.4% |
| 2010–14 | 17.6% | 26.7% | 22.5% | 29.6% |
| 2015–19 | 19.3% | 29.0% | 24.5% | 32.1% |
| 2020–24 | 24.9% | 32.8% | 27.6% | 35.6% |
| Change | +9.3 pts | +7.9 pts | +6.2 pts | +7.2 pts |
Fewer adults in ZIP 40004 have a four-year degree than in the country as a whole: 24.9%, against 35.6% nationally. Since 2006–10, the share with a degree has risen 9.3 points, in line with the national trend. College graduates are most concentrated in the northwest and least in the east.
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 40004
| Period | ZIP 40004 | Louisville area | Kentucky | U.S. |
|---|---|---|---|---|
| 2006–10 | 85.0% | 86.4% | 81.7% | 84.9% |
| 2010–14 | 88.5% | 87.8% | 83.9% | 86.1% |
| 2015–19 | 90.4% | 90.1% | 86.4% | 87.7% |
| 2020–24 | 91.3% | 91.1% | 88.8% | 89.3% |
| Change | +6.3 pts | +4.7 pts | +7.2 pts | +4.3 pts |
High school completion in ZIP 40004 is a bit above the national rate: 91.3% of adults have a diploma or equivalent, against 89.3%. The Louisville area as a whole looks much the same. The share with a diploma has risen 6.3 points since 2006–10, as it has nationally.
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 40004
| Period | ZIP 40004 | Louisville area | Kentucky | U.S. |
|---|---|---|---|---|
| 2006–10 | 7.8% | 8.4% | 8.4% | 8.1% |
| 2010–14 | 11.4% | 9.1% | 9.5% | 9.4% |
| 2015–19 | 5.3% | 5.2% | 5.8% | 5.6% |
| 2020–24 | 3.6% | 4.8% | 5.1% | 5.4% |
| Change | −4.2 pts | −3.6 pts | −3.3 pts | −2.7 pts |
Jobs have been easier to find in ZIP 40004 than nationally: unemployment was 3.6%, against 5.4%. Since 2006–10, unemployment has fallen 4.2 points, 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 40004 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 40004 | 2.43 | 40.8 | 11.1% | 26.5% | 6.0% | 1991 | $994 | 24.9% | 91.3% | 3.6% |
| ZIP 40013 | 2.74 | 37.7 | 13.5% | 7.0% | 4.0% | 1999 | $1,006 | 23.4% | 96.1% | 4.9% |
| ZIP 40020 | 2.52 | 42.4 | 7.3% | 8.6% | 9.7% | 1993 | $1,135 | 22.0% | 94.4% | 1.1% |
| ZIP 40107 | 2.54 | 42.0 | 17.1% | 15.9% | 8.3% | 1995 | $1,042 | 23.7% | 91.5% | 0.6% |
| ZIP 40008 | 2.49 | 44.4 | 8.8% | 15.3% | 7.5% | 1989 | $906 | 22.4% | 92.2% | 1.9% |
| ZIP 40110 | 2.68 | 49.4 | 1.5% | 11.2% | 9.4% | 1994 | $1,109 | 16.7% | 93.4% | 3.0% |
| ZIP 40069 | 2.36 | 43.9 | 13.5% | 25.5% | 7.0% | 1980 | $712 | 20.9% | 92.8% | 3.9% |
| ZIP 40150 | 2.53 | 47.4 | 7.1% | 13.4% | 4.9% | 1982 | $1,007 | 15.0% | 85.8% | 6.3% |
| ZIP 40012 | 2.36 | 47.0 | 10.6% | 10.6% | 5.6% | 1985 | $593 | 10.8% | 90.9% | 0.8% |
| ZIP 40078 | 2.70 | 34.8 | 5.8% | 15.0% | 8.8% | 1987 | $941 | 13.1% | 77.4% | 0.1% |
| ZIP 40040 | 2.67 | 39.7 | 6.1% | 18.4% | 17.5% | 1982 | $831 | 19.3% | 92.4% | 7.4% |
All figures 2020–24.
Zip codes with similar populations: 07054, NJ · 08205, NJ · 10013, NY · 15102, PA · 91303, CA · 56401, MN · 58102, ND · 59601, MT · 60134, IL · 60174, 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 40004. 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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