Population 64,328 · Census ACS 2020–24
Choose a measure to map it.Tap a measure to map it. Swipe the row for more. Arrows show the change since 2006–10.
Median age by neighborhoodHistory and comparison ↓︎
Younger residents
Older residents
Colorblind friendly
off
More maps of Castro Valley: Best Neighborhoods · Walk Grade · Household income · Home prices · Race · Politics · Traffic noise · Internet
Population and households in Castro Valley
Household size in Castro Valley
| Period | Castro Valley | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.65 | 2.74 | 3.04 | 2.68 |
| 2010–14 | 2.69 | 2.79 | 3.10 | 2.73 |
| 2015–19 | 2.77 | 2.83 | 3.09 | 2.71 |
| 2020–24 | 2.90 | 2.75 | 3.01 | 2.65 |
| Change | +0.25 | +0.01 | −0.03 | −0.03 |
The typical household in Castro Valley holds 2.90 people, more than the U.S. average of 2.65. Household size has climbed from 2.65 in 2006–10, even as the national average fell. Households are largest in the north and smallest in the southwest.
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 Castro Valley
| Period | Castro Valley | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 41.4 | 38.6 | 35.8 | 37.7 |
| 2010–14 | 42.0 | 39.4 | 36.8 | 38.6 |
| 2015–19 | 42.5 | 40.1 | 37.9 | 39.6 |
| 2020–24 | 43.5 | 41.3 | 39.0 | 40.1 |
| Change | +2.1 | +2.7 | +3.1 | +2.3 |
Castro Valley skews older than the country: its median age is 43.5, against 40.1 nationally. The median age has climbed from 41.4 in 2006–10, as it has nationally. Residents skew youngest in the southwest 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 Castro Valley
| Period | Castro Valley | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 9.9% | 10.3% | 13.5% | 12.3% |
| 2010–14 | 9.4% | 9.9% | 13.5% | 12.3% |
| 2015–19 | 9.2% | 9.1% | 12.3% | 11.6% |
| 2020–24 | 8.8% | 8.8% | 12.3% | 11.6% |
| Change | −1.1 pts | −1.5 pts | −1.2 pts | −0.6 pts |
Single parents head about one in twelve households in Castro Valley (8.8%), below the national share of 11.6%. That is in line with the rest of the San Francisco area. The single-parent share has edged down 1.1 points since 2006–10, mirroring the country.
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 Castro Valley
Renters in Castro Valley
| Period | Castro Valley | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 30.6% | 43.7% | 42.6% | 33.3% |
| 2010–14 | 32.7% | 46.2% | 45.2% | 35.6% |
| 2015–19 | 29.9% | 45.3% | 45.2% | 36.0% |
| 2020–24 | 28.4% | 44.5% | 44.1% | 34.8% |
| Change | −2.2 pts | +0.8 pts | +1.5 pts | +1.5 pts |
Nearly three in ten households in Castro Valley rent their homes (28.4%), a little below the national share of 34.8%; the rest own. Among homeowners, 32.8% have no mortgage at all, below the national share of 39.8%. Renting is most common in the south and least common in the northeast. The renter share is down 2.2 points from 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 Castro Valley
| Period | Castro Valley | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.1% | 8.6% | 8.7% | 11.4% |
| 2010–14 | 5.0% | 7.1% | 8.1% | 11.4% |
| 2015–19 | 4.6% | 6.5% | 7.5% | 11.1% |
| 2020–24 | 5.2% | 7.5% | 7.3% | 9.6% |
| Change | +0.1 pts | −1.1 pts | −1.4 pts | −1.8 pts |
Empty homes are scarce in Castro Valley: just 5.2% sit vacant, compared with 9.6% nationally, a sign of a tight housing market. Castro Valley has a lower vacancy rate than most California cities.
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 Castro Valley
| Period | Castro Valley | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 1967 | 1964 | 1972 | 1974 |
| 2010–14 | 1968 | 1965 | 1973 | 1975 |
| 2015–19 | 1968 | 1966 | 1974 | 1977 |
| 2020–24 | 1968 | 1968 | 1976 | 1980 |
| Change | +1 | +4 | +4 | +6 |
Castro Valley is a place of older homes: half were built before 1968, while the national median is 1980. That means established neighborhoods, and more houses that may need updating. Newer construction is concentrated in the northeast, 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 Castro Valley
| Period | Castro Valley | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,519 | $1,452 | $1,298 | $965 |
| 2010–14 | $1,616 | $1,551 | $1,379 | $1,040 |
| 2015–19 | $2,257 | $2,139 | $1,721 | $1,213 |
| 2020–24 | $2,817 | $2,666 | $2,229 | $1,571 |
| Change | +$1,298 | +$1,214 | +$931 | +$606 |
Rent in Castro Valley runs $2,817 a month at the median, utilities included, well above the U.S. median of $1,571. Rents are up $1,298 a month from 2006–10, an 85% jump, faster than rents rose nationally. The typical renter here spends 35.1% of household income on rent, well over the 30% mark often used to define affordable rent, so many renters here are stretched. Rents run highest in the north and lowest in the center.
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 Castro Valley
Bachelor's degrees in Castro Valley
| Period | Castro Valley | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 38.1% | 42.5% | 29.1% | 28.4% |
| 2010–14 | 36.4% | 44.1% | 30.1% | 29.6% |
| 2015–19 | 46.1% | 48.9% | 32.9% | 32.1% |
| 2020–24 | 45.3% | 52.2% | 36.3% | 35.6% |
| Change | +7.2 pts | +9.7 pts | +7.1 pts | +7.2 pts |
More than four in ten adults 25 and older in Castro Valley (45.3%) have a bachelor's degree or higher, above the national share of 35.6%. Locally, though, the share is lower than in the San Francisco area as a whole (52.2%). Since 2006–10, the share with a degree has risen 7.2 points, as it has nationally.
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 Castro Valley
| Period | Castro Valley | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 92.1% | 86.8% | 79.9% | 84.9% |
| 2010–14 | 92.3% | 87.5% | 80.7% | 86.1% |
| 2015–19 | 92.0% | 88.8% | 82.6% | 87.7% |
| 2020–24 | 92.0% | 89.1% | 84.2% | 89.3% |
| Change | −0.1 pts | +2.3 pts | +4.3 pts | +4.3 pts |
High school completion in Castro Valley is a bit above the national rate: 92.0% of adults have a diploma or equivalent, against 89.3%. The share with a diploma is little changed from 2006–10, while the national rate rose.
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 Castro Valley
| Period | Castro Valley | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 7.8% | 7.8% | 9.2% | 8.1% |
| 2010–14 | 8.5% | 8.9% | 11.3% | 9.4% |
| 2015–19 | 4.1% | 4.6% | 6.3% | 5.6% |
| 2020–24 | 3.9% | 5.8% | 6.6% | 5.4% |
| Change | −3.8 pts | −2.0 pts | −2.6 pts | −2.7 pts |
Jobs have been easier to find in Castro Valley than nationally: unemployment was 3.9%, against 5.4%. Since 2006–10, unemployment has fallen 3.8 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).
Castro Valley compared with nearby cities
| City | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Castro Valley | 2.90 | 43.5 | 8.8% | 28.4% | 5.2% | 1968 | $2,817 | 45.3% | 92.0% | 3.9% |
| Fairview | 2.98 | 43.2 | 6.6% | 27.0% | 5.9% | 1972 | $2,801 | 46.4% | 89.6% | 5.7% |
| Ashland | 2.97 | 37.0 | 18.9% | 65.1% | 5.8% | 1963 | $2,194 | 21.9% | 79.4% | 6.8% |
| Cherryland | 3.06 | 40.2 | 10.5% | 62.3% | 6.3% | 1965 | $2,176 | 18.9% | 74.5% | 5.2% |
| San Lorenzo | 3.42 | 42.3 | 8.6% | 23.5% | 4.5% | 1954 | $2,537 | 25.2% | 83.0% | 5.2% |
| Hayward | 3.24 | 39.5 | 10.6% | 43.1% | 5.9% | 1972 | $2,573 | 31.9% | 80.4% | 6.2% |
| San Leandro | 2.93 | 43.1 | 9.9% | 41.8% | 5.7% | 1960 | $2,366 | 33.6% | 82.2% | 5.0% |
| San Ramon | 2.92 | 42.1 | 6.1% | 28.8% | 3.5% | 1993 | $3,035 | 71.9% | 97.1% | 5.0% |
| Dublin | 2.90 | 38.1 | 6.0% | 34.6% | 4.5% | 2001 | $3,191 | 70.2% | 95.1% | 3.8% |
| Danville | 2.88 | 45.5 | 5.4% | 14.3% | 3.6% | 1985 | $3,323 | 73.0% | 97.9% | 4.7% |
| Oakland | 2.62 | 38.7 | 12.8% | 57.9% | 8.1% | 1958 | $2,124 | 45.9% | 82.9% | 6.5% |
All figures 2020–24.
Cities with similar populations: Clermont, FL · Martinsburg, WV · Brentwood, CA · Burnsville, MN · Casper, WY · La Habra, CA · Niagara Falls, NY · Hanford, CA · Powder Springs, GA · Mayaguez, PR
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 Castro Valley. 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.
No other site shows detail at this level for free. We are able to keep this site free by receiving a small commission from the referring links on this page. Please share or cite this page if you aren’t able to otherwise support our work.