Population 797,334 · Census ACS 2020–24
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Population and households in San Joaquin County
Household size in San Joaquin County
| Period | San Joaquin County | California | U.S. |
|---|---|---|---|
| 2006–10 | 3.18 | 3.04 | 2.68 |
| 2010–14 | 3.25 | 3.10 | 2.73 |
| 2015–19 | 3.28 | 3.09 | 2.71 |
| 2020–24 | 3.34 | 3.01 | 2.65 |
| Change | +0.16 | −0.03 | −0.03 |
Households in San Joaquin County are large by national standards, averaging 3.34 people against 2.65 for the U.S. That usually means more families with children at home. Household size has climbed from 3.18 in 2006–10, even as the national average fell.
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 San Joaquin County
| Period | San Joaquin County | California | U.S. |
|---|---|---|---|
| 2006–10 | 33.4 | 35.8 | 37.7 |
| 2010–14 | 34.5 | 36.8 | 38.6 |
| 2015–19 | 35.5 | 37.9 | 39.6 |
| 2020–24 | 36.1 | 39.0 | 40.1 |
| Change | +2.7 | +3.1 | +2.3 |
The median resident of San Joaquin County is 36.1 years old, a few years younger than the national median of 40.1. The median age has climbed from 33.4 in 2006–10, as it has nationally. Residents skew youngest in the center 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 San Joaquin County
| Period | San Joaquin County | California | U.S. |
|---|---|---|---|
| 2006–10 | 16.5% | 13.5% | 12.3% |
| 2010–14 | 16.8% | 13.5% | 12.3% |
| 2015–19 | 14.4% | 12.3% | 11.6% |
| 2020–24 | 15.2% | 12.3% | 11.6% |
| Change | −1.3 pts | −1.2 pts | −0.6 pts |
Single parents head just over one in seven households in San Joaquin County (15.2%), well above the national share of 11.6%. Since 2006–10, the single-parent share has edged down 1.3 points, mirroring the country. San Joaquin County has a higher share of single-parent households than the great majority of California counties.
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 San Joaquin County
Renters in San Joaquin County
| Period | San Joaquin County | California | U.S. |
|---|---|---|---|
| 2006–10 | 38.3% | 42.6% | 33.3% |
| 2010–14 | 43.1% | 45.2% | 35.6% |
| 2015–19 | 43.4% | 45.2% | 36.0% |
| 2020–24 | 38.0% | 44.1% | 34.8% |
| Change | −0.3 pts | +1.5 pts | +1.5 pts |
Renting is a bit more common in San Joaquin County than nationally: 38.0% of households rent their homes, against 34.8% for the U.S. Still, renters make up a smaller share here than in California as a whole (44.1%). Among homeowners, 31.1% have no mortgage at all, below the national share of 39.8%. Renting is most common in the center and least common in the southeast.
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 San Joaquin County
| Period | San Joaquin County | California | U.S. |
|---|---|---|---|
| 2006–10 | 9.0% | 8.7% | 11.4% |
| 2010–14 | 8.1% | 8.1% | 11.4% |
| 2015–19 | 6.6% | 7.5% | 11.1% |
| 2020–24 | 7.0% | 7.3% | 9.6% |
| Change | −2.0 pts | −1.4 pts | −1.8 pts |
Vacancy is on the low side in San Joaquin County: 7.0% of homes sit empty, against 9.6% nationally, which points to steady demand for housing. California as a whole looks much the same. Vacancy is down 2.0 points from 2006–10, in line with the national trend.
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 San Joaquin County
| Period | San Joaquin County | California | U.S. |
|---|---|---|---|
| 2006–10 | 1979 | 1972 | 1974 |
| 2010–14 | 1980 | 1973 | 1975 |
| 2015–19 | 1981 | 1974 | 1977 |
| 2020–24 | 1985 | 1976 | 1980 |
| Change | +5 | +4 | +6 |
Homes in San Joaquin County are a bit newer than the national norm: the median home was built in 1985, versus 1980 across the U.S. The median year built has moved up from 1979 in 2006–10, a sign of steady new building. The newest homes are mostly in the southwest, the oldest in the center.
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 San Joaquin County
| Period | San Joaquin County | California | U.S. |
|---|---|---|---|
| 2006–10 | $1,212 | $1,298 | $965 |
| 2010–14 | $1,239 | $1,379 | $1,040 |
| 2015–19 | $1,444 | $1,721 | $1,213 |
| 2020–24 | $1,997 | $2,229 | $1,571 |
| Change | +$785 | +$931 | +$606 |
Rent in San Joaquin County runs $1,997 a month at the median, utilities included, well above the U.S. median of $1,571. Still, rents here are lower than in California as a whole ($2,229). Rents are up $785 a month from 2006–10, a 65% jump, roughly in step with the nation. Rent takes 32.0% of the typical renter's income, just over the 30% mark often used to define affordable rent.
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 San Joaquin County
Bachelor's degrees in San Joaquin County
| Period | San Joaquin County | California | U.S. |
|---|---|---|---|
| 2006–10 | 18.0% | 29.1% | 28.4% |
| 2010–14 | 18.1% | 30.1% | 29.6% |
| 2015–19 | 18.8% | 32.9% | 32.1% |
| 2020–24 | 23.3% | 36.3% | 35.6% |
| Change | +5.2 pts | +7.1 pts | +7.2 pts |
College degrees are relatively uncommon in San Joaquin County: 23.3% of adults 25 and older hold a bachelor's or higher, well below the national share of 35.6%. The share with a degree has risen 5.2 points since 2006–10, as it has nationally. College graduates are most concentrated in the southwest 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 San Joaquin County
| Period | San Joaquin County | California | U.S. |
|---|---|---|---|
| 2006–10 | 77.2% | 79.9% | 84.9% |
| 2010–14 | 77.4% | 80.7% | 86.1% |
| 2015–19 | 78.7% | 82.6% | 87.7% |
| 2020–24 | 80.2% | 84.2% | 89.3% |
| Change | +3.1 pts | +4.3 pts | +4.3 pts |
About one in five adults in San Joaquin County never finished high school, well above the national share: only 80.2% have a diploma or equivalent, against 89.3% nationally. The share with a diploma has risen 3.1 points since 2006–10, as it has 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 San Joaquin County
| Period | San Joaquin County | California | U.S. |
|---|---|---|---|
| 2006–10 | 12.3% | 9.2% | 8.1% |
| 2010–14 | 15.2% | 11.3% | 9.4% |
| 2015–19 | 7.9% | 6.3% | 5.6% |
| 2020–24 | 7.4% | 6.6% | 5.4% |
| Change | −4.9 pts | −2.6 pts | −2.7 pts |
Unemployment in San Joaquin County runs well above the national rate: 7.4% of the labor force was out of work and looking, against 5.4%. Unemployment has fallen 4.9 points since 2006–10, in line with the national trend. 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).
San Joaquin County compared with nearby counties
| County | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| San Joaquin County | 3.34 | 36.1 | 15.2% | 38.0% | 7.0% | 1985 | $1,997 | 23.3% | 80.2% | 7.4% |
| Contra Costa County | 2.91 | 41.2 | 10.5% | 32.0% | 4.6% | 1978 | $2,615 | 44.4% | 89.1% | 6.4% |
| Tuolumne County | 2.28 | 48.6 | 9.5% | 26.1% | 21.2% | 1979 | $1,371 | 24.1% | 93.5% | 8.5% |
| Marin County | 2.57 | 48.0 | 8.3% | 35.3% | 8.1% | 1966 | $2,845 | 60.6% | 92.1% | 6.2% |
| San Miguel County | 1.81 | 45.7 | 8.5% | 37.0% | 32.0% | 1993 | $2,022 | 67.4% | 98.4% | 2.7% |
| San Juan County | 1.81 | 37.5 | 6.3% | 47.1% | 45.9% | 1979 | $992 | 52.1% | 100.0% | 9.4% |
| Hinsdale County | 1.96 | 48.5 | 16.4% | 23.9% | 62.0% | 1984 | $1,171 | 47.7% | 100.0% | 0.0% |
| Saguache County | 1.98 | 50.1 | 10.4% | 23.1% | 13.4% | 1987 | $940 | 30.9% | 91.8% | 9.2% |
| Otero County | 2.47 | 41.0 | 12.9% | 31.1% | 14.6% | 1959 | $862 | 20.0% | 88.8% | 6.8% |
| Bent County | 2.28 | 42.7 | 14.6% | 34.8% | 12.8% | 1963 | $1,203 | 16.0% | 83.6% | 6.0% |
| Prowers County | 2.51 | 37.4 | 11.5% | 32.9% | 14.5% | 1968 | $865 | 19.2% | 86.8% | 5.0% |
All figures 2020–24.
Counties with similar populations: Fort Bend County, TX · New Haven County, CT · Middlesex County, NJ · San Francisco County, CA · Hidalgo County, TX · Hamilton County, OH · Essex County, NJ · Essex County, MA · El Paso County, TX · DeKalb County, GA
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 San Joaquin County. 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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