Population 1,988 · Census ACS 2020–24
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Population and households in Bethel Island
Household size in Bethel Island
| Period | Bethel Island | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.16 | 2.74 | 3.04 | 2.68 |
| 2010–14 | 2.06 | 2.79 | 3.10 | 2.73 |
| 2015–19 | 2.42 | 2.83 | 3.09 | 2.71 |
| 2020–24 | 2.37 | 2.75 | 3.01 | 2.65 |
| Change | +0.21 | +0.01 | −0.03 | −0.03 |
Bethel Island is a place of small households, averaging 2.37 people against 2.65 for the U.S., which points to many singles, couples and roommates and relatively few children. Household size has climbed from 2.16 in 2006–10, 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 Bethel Island
| Period | Bethel Island | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 51.4 | 38.6 | 35.8 | 37.7 |
| 2010–14 | 57.7 | 39.4 | 36.8 | 38.6 |
| 2015–19 | 45.0 | 40.1 | 37.9 | 39.6 |
| 2020–24 | 55.3 | 41.3 | 39.0 | 40.1 |
| Change | +3.9 | +2.7 | +3.1 | +2.3 |
With a median age of 55.3, Bethel Island is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees.
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 Bethel Island
| Period | Bethel Island | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 7.4% | 10.3% | 13.5% | 12.3% |
| 2010–14 | 3.2% | 9.9% | 13.5% | 12.3% |
| 2015–19 | 6.9% | 9.1% | 12.3% | 11.6% |
| 2020–24 | 9.5% | 8.8% | 12.3% | 11.6% |
| Change | +2.1 pts | −1.5 pts | −1.2 pts | −0.6 pts |
Single-parent households are less common in Bethel Island than nationally: 9.5%, against 11.6%. The San Francisco area as a whole looks much the same.
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 Bethel Island
Renters in Bethel Island
| Period | Bethel Island | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 15.7% | 43.7% | 42.6% | 33.3% |
| 2010–14 | 19.6% | 46.2% | 45.2% | 35.6% |
| 2015–19 | 17.6% | 45.3% | 45.2% | 36.0% |
| 2020–24 | 34.9% | 44.5% | 44.1% | 34.8% |
| Change | +19.3 pts | +0.8 pts | +1.5 pts | +1.5 pts |
Just over a third of households in Bethel Island rent their homes (34.9%), close to the national share of 34.8%. Renters make up a smaller share here than in the San Francisco area overall (44.5%). Among homeowners, 61.8% have no mortgage at all, well above 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 Bethel Island
| Period | Bethel Island | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 21.3% | 8.6% | 8.7% | 11.4% |
| 2010–14 | 15.9% | 7.1% | 8.1% | 11.4% |
| 2015–19 | 35.0% | 6.5% | 7.5% | 11.1% |
| 2020–24 | 16.9% | 7.5% | 7.3% | 9.6% |
| Change | −4.4 pts | −1.1 pts | −1.4 pts | −1.8 pts |
Vacant homes make up 16.9% of the housing in Bethel Island, far above the national rate of 9.6%. In resort and lake areas that usually means seasonal and vacation homes; elsewhere it can point to weak demand.
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 Bethel Island
| Period | Bethel Island | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 1969 | 1964 | 1972 | 1974 |
| 2010–14 | 1975 | 1965 | 1973 | 1975 |
| 2015–19 | 1976 | 1966 | 1974 | 1977 |
| 2020–24 | 1970 | 1968 | 1976 | 1980 |
| Change | +1 | +4 | +4 | +6 |
Bethel Island is a place of older homes: half were built before 1970, while the national median is 1980. That means established neighborhoods, and more houses that may need updating. 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 Bethel Island
| Period | Bethel Island | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,166 | $1,452 | $1,298 | $965 |
| 2010–14 | $1,281 | $1,551 | $1,379 | $1,040 |
| 2015–19 | $1,263 | $2,139 | $1,721 | $1,213 |
| 2020–24 | $1,908 | $2,666 | $2,229 | $1,571 |
| Change | +$743 | +$1,214 | +$931 | +$606 |
Rent in Bethel Island runs $1,908 a month at the median, utilities included, well above the U.S. median of $1,571. Locally, though, rents here are lower than in the wider San Francisco area ($2,666). The typical renter here spends 48.7% 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 Bethel Island
Bachelor's degrees in Bethel Island
| Period | Bethel Island | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 9.1% | 42.5% | 29.1% | 28.4% |
| 2010–14 | 12.8% | 44.1% | 30.1% | 29.6% |
| 2015–19 | 12.7% | 48.9% | 32.9% | 32.1% |
| 2020–24 | 18.2% | 52.2% | 36.3% | 35.6% |
| Change | +9.1 pts | +9.7 pts | +7.1 pts | +7.2 pts |
College degrees are relatively uncommon in Bethel Island: 18.2% of adults 25 and older hold a bachelor's or higher, well below the national share of 35.6%.
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 Bethel Island
| Period | Bethel Island | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 79.9% | 86.8% | 79.9% | 84.9% |
| 2010–14 | 90.2% | 87.5% | 80.7% | 86.1% |
| 2015–19 | 75.9% | 88.8% | 82.6% | 87.7% |
| 2020–24 | 68.4% | 89.1% | 84.2% | 89.3% |
| Change | −11.5 pts | +2.3 pts | +4.3 pts | +4.3 pts |
Just over three in ten adults in Bethel Island never finished high school, well above the national share: only 68.4% have a diploma or equivalent, against 89.3% 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 Bethel Island
| Period | Bethel Island | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 12.5% | 7.8% | 9.2% | 8.1% |
| 2010–14 | 11.5% | 8.9% | 11.3% | 9.4% |
| 2015–19 | 4.6% | 4.6% | 6.3% | 5.6% |
| 2020–24 | 35.6% | 5.8% | 6.6% | 5.4% |
| Change | +23.1 pts | −2.0 pts | −2.6 pts | −2.7 pts |
Unemployment in Bethel Island runs well above the national rate: 35.6% of the labor force was out of work and looking, against 5.4%. 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).
Bethel Island 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Bethel Island | 2.37 | 55.3 | 9.5% | 34.9% | 16.9% | 1970 | $1,908 | 18.2% | 68.4% | 35.6% |
| Knightsen | 3.36 | 37.1 | 7.9% | 10.6% | 3.4% | 2004 | $2,414 | 25.0% | 84.3% | 10.9% |
| Oakley | 3.33 | 37.6 | 10.2% | 20.9% | 4.2% | 1998 | $2,168 | 26.2% | 89.4% | 5.4% |
| Bridgehead | 1.73 | 61.6 | 10.7% | 20.1% | 4.7% | 1983 | $1,250 | 10.0% | 92.1% | 10.5% |
| Brentwood | 3.20 | 40.7 | 10.4% | 18.1% | 3.5% | 2002 | $2,751 | 38.7% | 91.1% | 5.8% |
| Isleton | 2.90 | 52.1 | 8.8% | 18.7% | 27.1% | 1975 | $1,207 | 21.3% | 87.2% | 5.7% |
| Discovery Bay | 2.88 | 45.4 | 7.5% | 10.2% | 8.6% | 1997 | $2,885 | 32.5% | 94.5% | 8.8% |
| Antioch | 3.13 | 39.5 | 16.4% | 36.9% | 4.3% | 1984 | $2,625 | 24.0% | 85.1% | 7.5% |
| Rio Vista | 2.47 | 49.3 | 5.8% | 19.0% | 6.5% | 1992 | $1,706 | 27.4% | 87.7% | 15.9% |
| Holt | 1.84 | 37.8 | 11.2% | 87.8% | 27.4% | 1979 | $678 | 11.2% | 58.5% | 5.6% |
| Birds Landing | 3.03 | 30.7 | 2.9% | 44.6% | 3.9% | 1974 | $1,442 | 15.4% | 78.9% | 0.0% |
All figures 2020–24.
Cities with similar populations: Gila Bend, AZ · Belleair Bluffs, FL · Whitefield, ME · Capron, VA · Newport, VA · Cattaraugus, NY · Cleveland, WI · Wellington, NV · New Fairview, TX · Silverlake, WA
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 Bethel Island. 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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