Population 41,902 · Census ACS 2020–24
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Population and households in ZIP 94521
Household size in ZIP 94521
| Period | ZIP 94521 | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.62 | 2.74 | 3.04 | 2.68 |
| 2010–14 | 2.62 | 2.79 | 3.10 | 2.73 |
| 2015–19 | 2.74 | 2.83 | 3.09 | 2.71 |
| 2020–24 | 2.65 | 2.75 | 3.01 | 2.65 |
| Change | +0.02 | +0.01 | −0.03 | −0.03 |
Households in ZIP 94521 average 2.65 people, the same as the country as a whole. The typical household here is smaller than in the San Francisco area as a whole, where it has 2.75 people. The biggest households, usually families with children, are concentrated in the south.
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 94521
| Period | ZIP 94521 | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 41.2 | 38.6 | 35.8 | 37.7 |
| 2010–14 | 41.8 | 39.4 | 36.8 | 38.6 |
| 2015–19 | 42.3 | 40.1 | 37.9 | 39.6 |
| 2020–24 | 43.1 | 41.3 | 39.0 | 40.1 |
| Change | +2.0 | +2.7 | +3.1 | +2.3 |
ZIP 94521 skews older than the country: its median age is 43.1, against 40.1 nationally. Since 2006–10, the median age has climbed from 41.2, 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 94521
| Period | ZIP 94521 | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 8.8% | 10.3% | 13.5% | 12.3% |
| 2010–14 | 8.5% | 9.9% | 13.5% | 12.3% |
| 2015–19 | 7.6% | 9.1% | 12.3% | 11.6% |
| 2020–24 | 7.8% | 8.8% | 12.3% | 11.6% |
| Change | −1.0 pts | −1.5 pts | −1.2 pts | −0.6 pts |
Single-parent households are relatively rare in ZIP 94521: 7.8% of households, against 11.6% nationally. The single-parent share has edged down 1.0 points since 2006–10, 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 94521
Renters in ZIP 94521
| Period | ZIP 94521 | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 26.1% | 43.7% | 42.6% | 33.3% |
| 2010–14 | 29.6% | 46.2% | 45.2% | 35.6% |
| 2015–19 | 27.1% | 45.3% | 45.2% | 36.0% |
| 2020–24 | 25.6% | 44.5% | 44.1% | 34.8% |
| Change | −0.5 pts | +0.8 pts | +1.5 pts | +1.5 pts |
Most households in ZIP 94521 own their homes; 25.6% rent, below the national share of 34.8%. Among owners, 23.6% have paid off their mortgages, well below the national share of 39.8%. Renting is most common in the west and least common in the south. The renter share has edged down 0.5 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 94521
| Period | ZIP 94521 | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.4% | 8.6% | 8.7% | 11.4% |
| 2010–14 | 5.9% | 7.1% | 8.1% | 11.4% |
| 2015–19 | 4.0% | 6.5% | 7.5% | 11.1% |
| 2020–24 | 4.5% | 7.5% | 7.3% | 9.6% |
| Change | −0.9 pts | −1.1 pts | −1.4 pts | −1.8 pts |
Empty homes are scarce in ZIP 94521: just 4.5% sit vacant, compared with 9.6% nationally, a sign of a tight housing market. Vacancy is down 0.9 points from 2006–10, as it has nationally. ZIP 94521 has a lower vacancy rate than at least four in five California 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 94521
| Period | ZIP 94521 | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 1974 | 1964 | 1972 | 1974 |
| 2010–14 | 1973 | 1965 | 1973 | 1975 |
| 2015–19 | 1973 | 1966 | 1974 | 1977 |
| 2020–24 | 1972 | 1968 | 1976 | 1980 |
| Change | −1 | +4 | +4 | +6 |
Homes in ZIP 94521 run older than the national norm, with a median build year of 1972 against 1980. Still, homes here are newer than in the San Francisco area as a whole, where the median home dates to 1968. Newer construction is concentrated in the south, while the northwest 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 94521
| Period | ZIP 94521 | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,525 | $1,452 | $1,298 | $965 |
| 2010–14 | $1,621 | $1,551 | $1,379 | $1,040 |
| 2015–19 | $1,989 | $2,139 | $1,721 | $1,213 |
| 2020–24 | $2,588 | $2,666 | $2,229 | $1,571 |
| Change | +$1,063 | +$1,214 | +$931 | +$606 |
Rent in ZIP 94521 runs $2,588 a month at the median, utilities included, well above the U.S. median of $1,571. Rent has climbed $1,063 a month since 2006–10, up 70%, faster than rents rose nationally. Rent takes 31.8% of the typical renter's income, just over the 30% mark often used to define affordable rent. Rents run highest in the south and lowest in the east.
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 94521
Bachelor's degrees in ZIP 94521
| Period | ZIP 94521 | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 36.7% | 42.5% | 29.1% | 28.4% |
| 2010–14 | 37.7% | 44.1% | 30.1% | 29.6% |
| 2015–19 | 42.0% | 48.9% | 32.9% | 32.1% |
| 2020–24 | 44.4% | 52.2% | 36.3% | 35.6% |
| Change | +7.7 pts | +9.7 pts | +7.1 pts | +7.2 pts |
More than four in ten adults 25 and older in ZIP 94521 (44.4%) have a bachelor's degree or higher, above the national share of 35.6%. Still, the share is lower than in the San Francisco area overall (52.2%). Since 2006–10, the share with a degree has risen 7.7 points, 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 ZIP 94521
| Period | ZIP 94521 | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 92.0% | 86.8% | 79.9% | 84.9% |
| 2010–14 | 94.8% | 87.5% | 80.7% | 86.1% |
| 2015–19 | 93.8% | 88.8% | 82.6% | 87.7% |
| 2020–24 | 94.7% | 89.1% | 84.2% | 89.3% |
| Change | +2.7 pts | +2.3 pts | +4.3 pts | +4.3 pts |
High school completion is high in ZIP 94521: 94.7% 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 2.7 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 94521
| Period | ZIP 94521 | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.7% | 7.8% | 9.2% | 8.1% |
| 2010–14 | 10.5% | 8.9% | 11.3% | 9.4% |
| 2015–19 | 4.9% | 4.6% | 6.3% | 5.6% |
| 2020–24 | 6.0% | 5.8% | 6.6% | 5.4% |
| Change | −0.7 pts | −2.0 pts | −2.6 pts | −2.7 pts |
Unemployment in ZIP 94521 is close to the national rate: 6.0% of the labor force, against 5.4%. Unemployment has edged down 0.7 points since 2006–10, a smaller shift than nationally. 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 94521 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 94521 | 2.65 | 43.1 | 7.8% | 25.6% | 4.5% | 1972 | $2,588 | 44.4% | 94.7% | 6.0% |
| ZIP 94519 | 2.66 | 42.4 | 10.3% | 29.0% | 6.4% | 1961 | $2,473 | 30.0% | 90.5% | 3.5% |
| ZIP 94518 | 2.70 | 42.8 | 9.9% | 31.0% | 2.9% | 1968 | $2,696 | 44.9% | 87.6% | 5.0% |
| ZIP 94517 | 2.79 | 42.9 | 11.0% | 13.0% | 1.3% | 1981 | $3,110 | 56.6% | 98.5% | 5.9% |
| ZIP 94520 | 2.75 | 36.0 | 11.0% | 61.9% | 3.7% | 1968 | $2,242 | 28.9% | 77.3% | 5.8% |
| ZIP 94598 | 2.50 | 47.0 | 3.7% | 23.2% | 1.8% | 1971 | $2,931 | 73.7% | 97.1% | 4.4% |
| ZIP 94565 | 3.37 | 35.6 | 14.1% | 38.6% | 4.5% | 1983 | $2,318 | 21.7% | 79.3% | 8.4% |
| ZIP 94523 | 2.59 | 43.4 | 10.4% | 36.6% | 7.4% | 1970 | $2,750 | 52.1% | 95.6% | 5.0% |
| ZIP 94597 | 2.24 | 39.2 | 6.2% | 53.7% | 5.3% | 1979 | $2,838 | 65.4% | 95.8% | 6.5% |
| ZIP 94596 | 2.25 | 40.2 | 5.0% | 56.4% | 4.1% | 1974 | $2,713 | 70.8% | 97.6% | 6.2% |
| ZIP 94507 | 2.85 | 49.5 | 3.6% | 8.2% | 5.4% | 1977 | $3,501 | 75.8% | 97.8% | 3.6% |
All figures 2020–24.
Zip codes with similar populations: 92058, CA · 18702, PA · 19121, PA · 19144, PA · 19146, PA · 19426, PA · 19701, DE · 20109, VA · 20170, VA · 20785, MD
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 94521. 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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