Population 2,912 · Census ACS 2020–24
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Population and households in Janesville
Household size in Janesville
| Period | Janesville | California | U.S. |
|---|---|---|---|
| 2006–10 | 2.72 | 3.04 | 2.68 |
| 2010–14 | 2.59 | 3.10 | 2.73 |
| 2015–19 | 2.44 | 3.09 | 2.71 |
| 2020–24 | 2.64 | 3.01 | 2.65 |
| Change | −0.08 | −0.03 | −0.03 |
At 2.64 people per household, Janesville sits close to the national average of 2.65. The typical household here is smaller than in California as a whole, where it has 3.01 people.
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 Janesville
| Period | Janesville | California | U.S. |
|---|---|---|---|
| 2006–10 | 41.3 | 35.8 | 37.7 |
| 2010–14 | 46.0 | 36.8 | 38.6 |
| 2015–19 | 45.1 | 37.9 | 39.6 |
| 2020–24 | 51.0 | 39.0 | 40.1 |
| Change | +9.6 | +3.1 | +2.3 |
Janesville skews older: half of its residents are older than 51.0, well above the national median of 40.1. That usually means more empty nesters and retirees, and fewer young families. The median age has climbed from 41.3 in 2006–10, but in a place this small, survey estimates can swing a lot from one release to the next.
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 Janesville
| Period | Janesville | California | U.S. |
|---|---|---|---|
| 2006–10 | 15.3% | 13.5% | 12.3% |
| 2010–14 | 9.6% | 13.5% | 12.3% |
| 2015–19 | 13.5% | 12.3% | 11.6% |
| 2020–24 | 3.8% | 12.3% | 11.6% |
| Change | −11.4 pts | −1.2 pts | −0.6 pts |
Single-parent households are relatively rare in Janesville: 3.8% of households, against 11.6% nationally.
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 Janesville
Renters in Janesville
| Period | Janesville | California | U.S. |
|---|---|---|---|
| 2006–10 | 15.6% | 42.6% | 33.3% |
| 2010–14 | 16.1% | 45.2% | 35.6% |
| 2015–19 | 20.9% | 45.2% | 36.0% |
| 2020–24 | 19.1% | 44.1% | 34.8% |
| Change | +3.5 pts | +1.5 pts | +1.5 pts |
Only 19.1% of households in Janesville rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. About half of owners (50.6%) have paid off their mortgages, 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 Janesville
| Period | Janesville | California | U.S. |
|---|---|---|---|
| 2006–10 | 7.3% | 8.7% | 11.4% |
| 2010–14 | 9.4% | 8.1% | 11.4% |
| 2015–19 | 12.8% | 7.5% | 11.1% |
| 2020–24 | 19.1% | 7.3% | 9.6% |
| Change | +11.8 pts | −1.4 pts | −1.8 pts |
Vacant homes make up 19.1% of the housing in Janesville, 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 Janesville
| Period | Janesville | California | U.S. |
|---|---|---|---|
| 2006–10 | 1984 | 1972 | 1974 |
| 2010–14 | 1984 | 1973 | 1975 |
| 2015–19 | 1983 | 1974 | 1977 |
| 2020–24 | 1985 | 1976 | 1980 |
| Change | +1 | +4 | +6 |
Homes in Janesville are a bit newer than the national norm: the median home was built in 1985, versus 1980 across the U.S.
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 Janesville
| Period | Janesville | California | U.S. |
|---|---|---|---|
| 2006–10 | $332 | $1,298 | $965 |
| 2010–14 | $1,068 | $1,379 | $1,040 |
| 2015–19 | $1,369 | $1,721 | $1,213 |
| 2020–24 | $1,372 | $2,229 | $1,571 |
| Change | +$1,041 | +$931 | +$606 |
The median renter in Janesville pays $1,372 a month for rent and utilities, below the national median of $1,571. The typical renter here spends 43.9% 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 Janesville
Bachelor's degrees in Janesville
| Period | Janesville | California | U.S. |
|---|---|---|---|
| 2006–10 | 25.9% | 29.1% | 28.4% |
| 2010–14 | 17.6% | 30.1% | 29.6% |
| 2015–19 | 25.0% | 32.9% | 32.1% |
| 2020–24 | 15.3% | 36.3% | 35.6% |
| Change | −10.6 pts | +7.1 pts | +7.2 pts |
Fewer adults in Janesville have a four-year degree than in the country as a whole: 15.3%, against 35.6% 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 Janesville
| Period | Janesville | California | U.S. |
|---|---|---|---|
| 2006–10 | 92.9% | 79.9% | 84.9% |
| 2010–14 | 91.1% | 80.7% | 86.1% |
| 2015–19 | 93.5% | 82.6% | 87.7% |
| 2020–24 | 86.9% | 84.2% | 89.3% |
| Change | −6.0 pts | +4.3 pts | +4.3 pts |
About one in eight adults in Janesville never finished high school, a bit more than nationally: 86.9% have a diploma or equivalent, against 89.3% across the U.S. Even so, the rate is higher than in California as a whole (84.2%).
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 Janesville
| Period | Janesville | California | U.S. |
|---|---|---|---|
| 2006–10 | 2.9% | 9.2% | 8.1% |
| 2010–14 | 12.3% | 11.3% | 9.4% |
| 2015–19 | 9.9% | 6.3% | 5.6% |
| 2020–24 | 2.1% | 6.6% | 5.4% |
| Change | −0.8 pts | −2.6 pts | −2.7 pts |
The job market in Janesville has been strong: just 2.1% of the labor force was out of work and looking, well below the national rate of 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).
Janesville 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Janesville | 2.64 | 51.0 | 3.8% | 19.1% | 19.1% | 1985 | $1,372 | 15.3% | 86.9% | 2.1% |
| Standish | 2.87 | 33.8 | 8.4% | 22.7% | 21.1% | 1980 | $1,170 | 12.3% | 94.8% | 1.0% |
| Susanville | 2.52 | 39.7 | 10.9% | 36.1% | 17.6% | 1977 | $1,111 | 15.3% | 82.1% | 7.6% |
| Milford | 2.89 | 39.3 | 4.6% | 32.3% | 24.2% | 1962 | $1,134 | 12.4% | 94.1% | 1.9% |
| Litchfield | 2.84 | 33.8 | 8.4% | 22.8% | 22.1% | 1980 | $1,172 | 12.5% | 94.3% | 1.0% |
| Wendel | 2.94 | 36.5 | 6.8% | 28.5% | 22.9% | 1969 | $1,154 | 11.3% | 94.4% | 0.5% |
| Patton Village | 2.58 | 37.9 | 23.1% | 58.2% | 17.6% | 1956 | $1,055 | 4.7% | 50.5% | 12.6% |
| Taylorsville | 2.18 | 42.4 | 1.5% | 24.0% | 27.5% | 1981 | $1,085 | 20.4% | 96.5% | 10.0% |
| Herlong | 2.82 | 38.3 | 13.0% | 42.0% | 21.7% | 1957 | $1,113 | 7.6% | 74.3% | 5.0% |
| Greenville | 2.26 | 47.5 | 11.4% | 21.5% | 28.0% | 1973 | $724 | 16.9% | 96.0% | 6.9% |
| Crescent Mills | 1.89 | 50.6 | 5.5% | 16.9% | 47.2% | 1986 | $1,052 | 7.7% | 100.0% | 0.0% |
All figures 2020–24.
Cities with similar populations: Partlow, VA · Sandy Hook, KY · Northwood, NH · Spencer, NC · Samson, AL · Ore City, TX · Oriskany, NY · Wilton, IA · Mitchell, NE · Palmhurst, TX
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 Janesville. 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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