Population 325 · Census ACS 2020–24
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Population and households in Port Costa
Household size in Port Costa
| Period | Port Costa | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.24 | 2.74 | 3.04 | 2.68 |
| 2010–14 | 2.39 | 2.79 | 3.10 | 2.73 |
| 2015–19 | 2.49 | 2.83 | 3.09 | 2.71 |
| 2020–24 | 2.07 | 2.75 | 3.01 | 2.65 |
| Change | −0.17 | +0.01 | −0.03 | −0.03 |
Households in Port Costa are small: just 2.07 people on average, compared with 2.65 nationally. That is typical of places where many people live alone or as couples, and fewer have children at home. Since 2006–10, household size has dropped from 2.24, but in a place this small, much of that may be survey noise rather than real change.
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 Port Costa
| Period | Port Costa | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 46.2 | 38.6 | 35.8 | 37.7 |
| 2010–14 | 46.3 | 39.4 | 36.8 | 38.6 |
| 2015–19 | 51.1 | 40.1 | 37.9 | 39.6 |
| 2020–24 | 55.0 | 41.3 | 39.0 | 40.1 |
| Change | +8.8 | +2.7 | +3.1 | +2.3 |
Port Costa skews older: half of its residents are older than 55.0, well above the national median of 40.1. That usually means more empty nesters and retirees, and fewer young families.
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 Port Costa
| Period | Port Costa | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.9% | 10.3% | 13.5% | 12.3% |
| 2010–14 | 5.2% | 9.9% | 13.5% | 12.3% |
| 2015–19 | 8.0% | 9.1% | 12.3% | 11.6% |
| 2020–24 | 9.7% | 8.8% | 12.3% | 11.6% |
| Change | +6.8 pts | −1.5 pts | −1.2 pts | −0.6 pts |
Single-parent households are a bit less common in Port Costa than nationally: 9.7%, against 11.6%. That is in line with the rest of the San Francisco area.
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 Port Costa
Renters in Port Costa
| Period | Port Costa | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 13.7% | 43.7% | 42.6% | 33.3% |
| 2010–14 | 30.9% | 46.2% | 45.2% | 35.6% |
| 2015–19 | 34.2% | 45.3% | 45.2% | 36.0% |
| 2020–24 | 26.7% | 44.5% | 44.1% | 34.8% |
| Change | +13.0 pts | +0.8 pts | +1.5 pts | +1.5 pts |
Most households in Port Costa own their homes; 26.7% rent, below the national share of 34.8%. Among homeowners, 31.9% have no mortgage at all, below the national share of 39.8%.
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 Port Costa
| Period | Port Costa | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 7.7% | 8.6% | 8.7% | 11.4% |
| 2010–14 | 7.2% | 7.1% | 8.1% | 11.4% |
| 2015–19 | 7.5% | 6.5% | 7.5% | 11.1% |
| 2020–24 | 7.3% | 7.5% | 7.3% | 9.6% |
| Change | −0.4 pts | −1.1 pts | −1.4 pts | −1.8 pts |
Vacancy is on the low side in Port Costa: 7.3% of homes sit empty, against 9.6% nationally, which points to steady demand for housing. The San Francisco area as a whole looks much the same.
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 Port Costa
| Period | Port Costa | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 1966 | 1964 | 1972 | 1974 |
| 2010–14 | 1965 | 1965 | 1973 | 1975 |
| 2015–19 | 1964 | 1966 | 1974 | 1977 |
| 2020–24 | 1966 | 1968 | 1976 | 1980 |
| Change | +0 | +4 | +4 | +6 |
The housing in Port Costa is old by national standards: the median home dates to 1966, against 1980 for the U.S., so buyers will find more older houses, some of them due for updates. The San Francisco area as a whole looks much the same.
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 Port Costa
| Period | Port Costa | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,551 | $1,452 | $1,298 | $965 |
| 2010–14 | $1,223 | $1,551 | $1,379 | $1,040 |
| 2015–19 | $1,948 | $2,139 | $1,721 | $1,213 |
| 2020–24 | $2,462 | $2,666 | $2,229 | $1,571 |
| Change | +$912 | +$1,214 | +$931 | +$606 |
The median renter in Port Costa pays $2,462 a month for rent and utilities, well above the national median of $1,571. Still, rents here are lower than in the San Francisco area overall ($2,666). The typical renter here spends 24.5% of household income on rent, comfortably under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally.
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 Port Costa
Bachelor's degrees in Port Costa
| Period | Port Costa | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 41.6% | 42.5% | 29.1% | 28.4% |
| 2010–14 | 36.3% | 44.1% | 30.1% | 29.6% |
| 2015–19 | 43.7% | 48.9% | 32.9% | 32.1% |
| 2020–24 | 41.0% | 52.2% | 36.3% | 35.6% |
| Change | −0.6 pts | +9.7 pts | +7.1 pts | +7.2 pts |
College degrees are a bit more common in Port Costa than nationally: 41.0% of adults 25 and older have a bachelor's or higher, against 35.6%. Even so, the share is lower than in the San Francisco area overall (52.2%).
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 Port Costa
| Period | Port Costa | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 93.4% | 86.8% | 79.9% | 84.9% |
| 2010–14 | 93.1% | 87.5% | 80.7% | 86.1% |
| 2015–19 | 96.3% | 88.8% | 82.6% | 87.7% |
| 2020–24 | 96.0% | 89.1% | 84.2% | 89.3% |
| Change | +2.6 pts | +2.3 pts | +4.3 pts | +4.3 pts |
High school completion is high in Port Costa: 96.0% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%.
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 Port Costa
| Period | Port Costa | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 3.8% | 7.8% | 9.2% | 8.1% |
| 2010–14 | 6.2% | 8.9% | 11.3% | 9.4% |
| 2015–19 | 8.6% | 4.6% | 6.3% | 5.6% |
| 2020–24 | 5.2% | 5.8% | 6.6% | 5.4% |
| Change | +1.4 pts | −2.0 pts | −2.6 pts | −2.7 pts |
At 5.2%, unemployment in Port Costa is close to the national rate of 5.4%. 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).
Port Costa 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Port Costa | 2.07 | 55.0 | 9.7% | 26.7% | 7.3% | 1966 | $2,462 | 41.0% | 96.0% | 5.2% |
| Crockett | 2.20 | 46.3 | 8.7% | 45.3% | 12.1% | 1944 | $2,330 | 34.0% | 94.3% | 7.3% |
| Benicia | 2.57 | 44.6 | 10.5% | 30.0% | 4.7% | 1981 | $2,556 | 48.2% | 94.9% | 4.6% |
| Tormey | 2.79 | 26.9 | 29.5% | 60.7% | 12.9% | 1949 | $2,006 | 40.3% | 76.0% | 0.0% |
| Rodeo | 3.19 | 41.3 | 17.7% | 39.3% | 6.6% | 1972 | $2,214 | 34.7% | 83.6% | 9.8% |
| Hercules | 2.90 | 44.6 | 9.4% | 21.0% | 3.4% | 1990 | $2,890 | 46.3% | 92.2% | 6.4% |
| Vallejo | 2.79 | 41.0 | 14.0% | 43.0% | 5.6% | 1972 | $2,289 | 28.1% | 87.4% | 7.3% |
| Martinez | 2.55 | 43.1 | 9.2% | 28.3% | 3.8% | 1972 | $2,555 | 42.5% | 93.1% | 6.0% |
| Pinole | 2.82 | 45.5 | 8.7% | 20.4% | 7.2% | 1973 | $2,735 | 38.8% | 88.8% | 5.5% |
| El Sobrante | 2.92 | 42.5 | 11.1% | 26.2% | 7.8% | 1970 | $2,563 | 42.4% | 92.4% | 5.5% |
| Reliez Valley | 2.91 | 48.5 | 6.2% | 5.3% | 1.8% | 1970 | $3,468 | 80.8% | 98.9% | 3.9% |
All figures 2020–24.
Cities with similar populations: Concord, NE · Clopton, AL · Cloverland, IN · Clymers, IN · Coalton, IL · Coalville, NC · Cobalt, ID · Coburg, KY · Coffey, MO · Colbert Heights, AL
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 Port Costa. 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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