Population 27,317 · Census ACS 2020–24
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Population and households in ZIP 91731
Household size in ZIP 91731
| Period | ZIP 91731 | Los Angeles area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 3.82 | 3.14 | 3.04 | 2.68 |
| 2010–14 | 3.69 | 3.20 | 3.10 | 2.73 |
| 2015–19 | 3.70 | 3.16 | 3.09 | 2.71 |
| 2020–24 | 3.39 | 3.01 | 3.01 | 2.65 |
| Change | −0.43 | −0.13 | −0.03 | −0.03 |
ZIP 91731 is a place of big households: 3.39 people per home on average, compared with 2.65 nationally. Numbers like that usually point to plenty of families with kids. Household size has dropped from 3.82 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 91731
| Period | ZIP 91731 | Los Angeles area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 32.9 | 35.6 | 35.8 | 37.7 |
| 2010–14 | 36.3 | 36.7 | 36.8 | 38.6 |
| 2015–19 | 37.7 | 38.0 | 37.9 | 39.6 |
| 2020–24 | 38.3 | 39.5 | 39.0 | 40.1 |
| Change | +5.4 | +4.0 | +3.1 | +2.3 |
ZIP 91731 is a little younger than the country as a whole: its median age is 38.3, against 40.1 nationally. The picture is much the same across the Los Angeles area. Since 2006–10, the median age has climbed from 32.9, 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 ZIP 91731
| Period | ZIP 91731 | Los Angeles area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 15.5% | 14.3% | 13.5% | 12.3% |
| 2010–14 | 15.6% | 14.1% | 13.5% | 12.3% |
| 2015–19 | 14.9% | 12.5% | 12.3% | 11.6% |
| 2020–24 | 20.1% | 12.3% | 12.3% | 11.6% |
| Change | +4.6 pts | −2.0 pts | −1.2 pts | −0.6 pts |
Single parents head about one in five households in ZIP 91731 (20.1%), well above the national share of 11.6%. The single-parent share is up 4.6 points from 2006–10, even as the national share fell. Of the 1,131 California ZIP codes with 5,000+ people, only 97 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 91731
Renters in ZIP 91731
| Period | ZIP 91731 | Los Angeles area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 61.4% | 48.8% | 42.6% | 33.3% |
| 2010–14 | 60.8% | 50.8% | 45.2% | 35.6% |
| 2015–19 | 62.3% | 51.4% | 45.2% | 36.0% |
| 2020–24 | 61.0% | 51.6% | 44.1% | 34.8% |
| Change | −0.4 pts | +2.8 pts | +1.5 pts | +1.5 pts |
Renters far outnumber owners in ZIP 91731: 61.0% of households rent their homes, against 34.8% nationally. Among homeowners, 54.0% have no mortgage at all, well above the national share of 39.8%. Renting is most common in the west and least common in the north.
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 91731
| Period | ZIP 91731 | Los Angeles area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.6% | 7.0% | 8.7% | 11.4% |
| 2010–14 | 8.9% | 6.7% | 8.1% | 11.4% |
| 2015–19 | 7.5% | 6.6% | 7.5% | 11.1% |
| 2020–24 | 5.3% | 6.7% | 7.3% | 9.6% |
| Change | −0.3 pts | −0.3 pts | −1.4 pts | −1.8 pts |
Empty homes are scarce in ZIP 91731: just 5.3% sit vacant, compared with 9.6% nationally, a sign of a tight housing market. That is in line with the rest of the Los Angeles area.
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 91731
| Period | ZIP 91731 | Los Angeles area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 1964 | 1965 | 1972 | 1974 |
| 2010–14 | 1962 | 1966 | 1973 | 1975 |
| 2015–19 | 1964 | 1966 | 1974 | 1977 |
| 2020–24 | 1968 | 1969 | 1976 | 1980 |
| Change | +4 | +4 | +4 | +6 |
The housing in ZIP 91731 is old by national standards: the median home dates to 1968, against 1980 for the U.S., so buyers will find more older houses, some of them due for updates. The median year built has moved up from 1964 in 2006–10, a sign of steady new building. The newest homes are mostly in the west, the oldest in the south.
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 91731
| Period | ZIP 91731 | Los Angeles area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,066 | $1,328 | $1,298 | $965 |
| 2010–14 | $1,133 | $1,415 | $1,379 | $1,040 |
| 2015–19 | $1,253 | $1,755 | $1,721 | $1,213 |
| 2020–24 | $1,682 | $2,279 | $2,229 | $1,571 |
| Change | +$616 | +$951 | +$931 | +$606 |
A typical rental in ZIP 91731 costs $1,682 a month with utilities, above the national median of $1,571. Still, rents here are lower than in the Los Angeles area as a whole ($2,279). Rents are up $616 a month from 2006–10, a 58% rise, a slower climb than the nation's. The typical renter here spends 37.1% of household income on rent, well over the 30% mark often used to define affordable rent, so many renters here are stretched.
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 91731
Bachelor's degrees in ZIP 91731
| Period | ZIP 91731 | Los Angeles area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 12.0% | 29.7% | 29.1% | 28.4% |
| 2010–14 | 10.6% | 30.7% | 30.1% | 29.6% |
| 2015–19 | 11.9% | 33.7% | 32.9% | 32.1% |
| 2020–24 | 15.4% | 37.6% | 36.3% | 35.6% |
| Change | +3.4 pts | +7.9 pts | +7.1 pts | +7.2 pts |
Fewer adults in ZIP 91731 have a four-year degree than in the country as a whole: 15.4%, against 35.6% nationally. The share with a degree has risen 3.4 points since 2006–10, as it has nationally. College graduates are most concentrated in the north 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 91731
| Period | ZIP 91731 | Los Angeles area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 55.2% | 76.7% | 79.9% | 84.9% |
| 2010–14 | 58.0% | 77.7% | 80.7% | 86.1% |
| 2015–19 | 58.3% | 80.0% | 82.6% | 87.7% |
| 2020–24 | 65.9% | 82.1% | 84.2% | 89.3% |
| Change | +10.7 pts | +5.4 pts | +4.3 pts | +4.3 pts |
About a third of adults in ZIP 91731 never finished high school, well above the national share: only 65.9% have a diploma or equivalent, against 89.3% nationally. The share with a diploma has risen 10.7 points since 2006–10, mirroring the country. Only 89 of the 1,131 California ZIP codes with 5,000+ people have a lower 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 ZIP 91731
| Period | ZIP 91731 | Los Angeles area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 10.3% | 8.5% | 9.2% | 8.1% |
| 2010–14 | 15.1% | 10.6% | 11.3% | 9.4% |
| 2015–19 | 8.3% | 5.8% | 6.3% | 5.6% |
| 2020–24 | 6.3% | 6.7% | 6.6% | 5.4% |
| Change | −4.1 pts | −1.7 pts | −2.6 pts | −2.7 pts |
Jobs have been a little harder to find in ZIP 91731 than nationally: unemployment was 6.3%, against 5.4%. Unemployment is down 4.1 points from 2006–10, mirroring the country. 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).
ZIP 91731 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 91731 | 3.39 | 38.3 | 20.1% | 61.0% | 5.3% | 1968 | $1,682 | 15.4% | 65.9% | 6.3% |
| ZIP 91732 | 3.73 | 38.2 | 18.7% | 57.1% | 4.4% | 1970 | $1,900 | 16.1% | 65.8% | 5.8% |
| ZIP 91733 | 3.80 | 38.0 | 18.6% | 57.9% | 4.1% | 1964 | $1,697 | 11.2% | 55.1% | 7.4% |
| ZIP 91780 | 3.09 | 43.4 | 8.8% | 37.5% | 5.7% | 1962 | $2,370 | 41.7% | 85.7% | 6.5% |
| ZIP 91770 | 3.44 | 45.1 | 11.3% | 51.1% | 6.7% | 1961 | $1,922 | 21.3% | 67.5% | 6.0% |
| ZIP 91007 | 2.70 | 45.0 | 7.1% | 47.4% | 8.3% | 1968 | $2,152 | 53.0% | 90.2% | 5.8% |
| ZIP 91776 | 3.18 | 43.6 | 12.3% | 56.3% | 9.6% | 1962 | $1,963 | 30.6% | 77.5% | 6.6% |
| ZIP 91006 | 3.13 | 44.6 | 10.3% | 32.0% | 9.8% | 1968 | $2,457 | 56.1% | 91.8% | 5.2% |
| ZIP 91775 | 2.82 | 44.6 | 10.5% | 35.9% | 7.4% | 1955 | $2,429 | 52.4% | 91.4% | 5.3% |
| ZIP 91746 | 4.05 | 40.5 | 13.9% | 29.0% | 5.4% | 1959 | $2,149 | 15.2% | 67.9% | 6.5% |
| ZIP 91706 | 3.85 | 38.2 | 15.5% | 41.0% | 2.9% | 1965 | $1,918 | 15.5% | 68.7% | 6.1% |
All figures 2020–24.
Zip codes with similar populations: 07621, NJ · 14424, NY · 90039, CA · 43512, OH · 00682, PR · 45459, OH · 46221, IN · 46845, IN · 46947, IN · 63367, MO
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 91731. 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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