Population 2,402 · Census ACS 2020–24
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Median age by neighborhoodHistory and comparison ↓︎
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Population and households in Keystone
Household size in Keystone
| Period | Keystone | California | U.S. |
|---|---|---|---|
| 2006–10 | 2.29 | 3.04 | 2.68 |
| 2010–14 | 2.59 | 3.10 | 2.73 |
| 2015–19 | 2.56 | 3.09 | 2.71 |
| 2020–24 | 2.28 | 3.01 | 2.65 |
| Change | −0.02 | −0.03 | −0.03 |
Households in Keystone are small: just 2.28 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.
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 Keystone
| Period | Keystone | California | U.S. |
|---|---|---|---|
| 2006–10 | 36.3 | 35.8 | 37.7 |
| 2010–14 | 37.1 | 36.8 | 38.6 |
| 2015–19 | 34.8 | 37.9 | 39.6 |
| 2020–24 | 37.1 | 39.0 | 40.1 |
| Change | +0.8 | +3.1 | +2.3 |
The median resident of Keystone is 37.1 years old, a few years younger than the national median of 40.1.
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 Keystone
| Period | Keystone | California | U.S. |
|---|---|---|---|
| 2006–10 | 9.4% | 13.5% | 12.3% |
| 2010–14 | 11.4% | 13.5% | 12.3% |
| 2015–19 | 16.4% | 12.3% | 11.6% |
| 2020–24 | 12.4% | 12.3% | 11.6% |
| Change | +3.0 pts | −1.2 pts | −0.6 pts |
Single-parent households are about as common in Keystone as they are nationally: 12.4%, against 11.6%. The single-parent share is up 3.0 points from 2006–10, but in a place this small, survey estimates can swing a lot from one release to the next.
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 Keystone
Renters in Keystone
| Period | Keystone | California | U.S. |
|---|---|---|---|
| 2006–10 | 12.1% | 42.6% | 33.3% |
| 2010–14 | 16.3% | 45.2% | 35.6% |
| 2015–19 | 18.3% | 45.2% | 36.0% |
| 2020–24 | 30.8% | 44.1% | 34.8% |
| Change | +18.8 pts | +1.5 pts | +1.5 pts |
About three in ten households in Keystone rent their homes (30.8%), a little below the national share of 34.8%; the rest own. Among homeowners, 46.4% have no mortgage at all, 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 Keystone
| Period | Keystone | California | U.S. |
|---|---|---|---|
| 2006–10 | 14.5% | 8.7% | 11.4% |
| 2010–14 | 36.3% | 8.1% | 11.4% |
| 2015–19 | 30.0% | 7.5% | 11.1% |
| 2020–24 | 11.4% | 7.3% | 9.6% |
| Change | −3.2 pts | −1.4 pts | −1.8 pts |
Vacancy runs a little high in Keystone: 11.4% of homes are empty, against 9.6% nationally. The count includes vacation homes and homes between owners or tenants, not just abandoned ones.
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 Keystone
| Period | Keystone | California | U.S. |
|---|---|---|---|
| 2006–10 | 1980 | 1972 | 1974 |
| 2010–14 | 1986 | 1973 | 1975 |
| 2015–19 | 1986 | 1974 | 1977 |
| 2020–24 | 1980 | 1976 | 1980 |
| Change | +0 | +4 | +6 |
Homes in Keystone are the same age as the nation's housing: the median home was built in 1980. Homes here are newer than in California as a whole, where the median home dates to 1976.
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 Keystone
| Period | Keystone | California | U.S. |
|---|---|---|---|
| 2006–10 | $670 | $1,298 | $965 |
| 2010–14 | $590 | $1,379 | $1,040 |
| 2015–19 | $914 | $1,721 | $1,213 |
| 2020–24 | $1,059 | $2,229 | $1,571 |
| Change | +$389 | +$931 | +$606 |
Rent in Keystone runs $1,059 a month at the median, utilities included, well below the U.S. median of $1,571. The typical renter here spends 45.8% 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 Keystone
Bachelor's degrees in Keystone
| Period | Keystone | California | U.S. |
|---|---|---|---|
| 2006–10 | 5.0% | 29.1% | 28.4% |
| 2010–14 | 1.7% | 30.1% | 29.6% |
| 2015–19 | 3.6% | 32.9% | 32.1% |
| 2020–24 | 2.8% | 36.3% | 35.6% |
| Change | −2.2 pts | +7.1 pts | +7.2 pts |
College degrees are relatively uncommon in Keystone: 2.8% 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 Keystone
| Period | Keystone | California | U.S. |
|---|---|---|---|
| 2006–10 | 57.6% | 79.9% | 84.9% |
| 2010–14 | 63.5% | 80.7% | 86.1% |
| 2015–19 | 67.3% | 82.6% | 87.7% |
| 2020–24 | 68.2% | 84.2% | 89.3% |
| Change | +10.7 pts | +4.3 pts | +4.3 pts |
Nearly a third of adults in Keystone never finished high school, well above the national share: only 68.2% 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 Keystone
| Period | Keystone | California | U.S. |
|---|---|---|---|
| 2006–10 | 9.2% | 9.2% | 8.1% |
| 2010–14 | 32.7% | 11.3% | 9.4% |
| 2015–19 | 10.1% | 6.3% | 5.6% |
| 2020–24 | 15.2% | 6.6% | 5.4% |
| Change | +6.0 pts | −2.6 pts | −2.7 pts |
Unemployment in Keystone runs well above the national rate: 15.2% 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).
Keystone 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Keystone | 2.28 | 37.1 | 12.4% | 30.8% | 11.4% | 1980 | $1,059 | 2.8% | 68.2% | 15.2% |
| Copperopolis | 2.46 | 51.0 | 8.0% | 14.7% | 24.0% | 1997 | $2,159 | 21.1% | 92.9% | 4.7% |
| Chinese Camp | 2.49 | 46.2 | 19.1% | 26.3% | 20.6% | 1972 | $1,115 | 16.9% | 82.1% | 35.7% |
| Quartz | 2.68 | 46.2 | 19.6% | 18.1% | 20.4% | 1980 | $1,368 | 9.3% | 93.5% | 14.5% |
| Jamestown | 2.26 | 44.4 | 11.2% | 34.7% | 10.5% | 1980 | $1,168 | 15.9% | 95.5% | 8.6% |
| Tuttletown | 2.73 | 57.6 | 14.4% | 10.2% | 18.8% | 1982 | $1,349 | 26.7% | 98.0% | 11.6% |
| Sonora | 2.30 | 48.5 | 10.1% | 34.1% | 13.7% | 1981 | $1,423 | 26.5% | 95.2% | 6.9% |
| Moccasin | 2.28 | 50.8 | 1.5% | 12.2% | 20.0% | 1991 | $1,767 | 16.3% | 85.6% | 10.3% |
| Big Oak Flat | 2.11 | 50.6 | 9.9% | 22.5% | 29.2% | 1984 | $1,336 | 15.0% | 92.9% | 3.9% |
| Soulsbyville | 2.68 | 44.4 | 3.3% | 11.0% | 11.0% | 1982 | $1,270 | 22.8% | 94.4% | 8.8% |
| Tuolumne | 2.40 | 53.7 | 4.5% | 22.2% | 13.8% | 1976 | $1,237 | 21.7% | 92.8% | 3.1% |
All figures 2020–24.
Cities with similar populations: Bayou La Batre, AL · Bellaire, MI · Beresford, SD · Deerfield, NH · Fountaintown, IN · Gilbert, MN · Sugar City, ID · North Bennington, VT · Parkman, OH · Pierce, NE
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 Keystone. 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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