Population 2,136 · Census ACS 2020–24
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Population and households in Jefferson
Household size in Jefferson
| Period | Jefferson | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 2.32 | 2.51 | 2.68 |
| 2010–14 | 2.43 | 2.51 | 2.73 |
| 2015–19 | 2.16 | 2.50 | 2.71 |
| 2020–24 | 2.17 | 2.48 | 2.65 |
| Change | −0.15 | −0.03 | −0.03 |
Jefferson is a place of small households, averaging 2.17 people against 2.65 for the U.S., which points to many singles, couples and roommates and relatively few children. Household size has dropped from 2.32 in 2006–10, but in a place this small, survey estimates can swing a lot from one release to the next.
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 Jefferson
| Period | Jefferson | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 40.8 | 37.9 | 37.7 |
| 2010–14 | 40.6 | 38.3 | 38.6 |
| 2015–19 | 39.8 | 38.8 | 39.6 |
| 2020–24 | 40.6 | 38.9 | 40.1 |
| Change | −0.2 | +1.0 | +2.3 |
At 40.6, the median age in Jefferson is close to the national median of 40.1, so its age mix looks much like the country's. The population here is older than in South Dakota as a whole, where the median age is 38.9.
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 Jefferson
| Period | Jefferson | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 7.4% | 10.8% | 12.3% |
| 2010–14 | 5.0% | 11.1% | 12.3% |
| 2015–19 | 13.6% | 10.9% | 11.6% |
| 2020–24 | 8.9% | 10.7% | 11.6% |
| Change | +1.6 pts | −0.1 pts | −0.6 pts |
Single-parent households are less common in Jefferson than nationally: 8.9%, against 11.6%.
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 Jefferson
Renters in Jefferson
| Period | Jefferson | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 22.5% | 31.1% | 33.3% |
| 2010–14 | 23.2% | 32.0% | 35.6% |
| 2015–19 | 31.2% | 32.0% | 36.0% |
| 2020–24 | 23.4% | 31.4% | 34.8% |
| Change | +0.9 pts | +0.3 pts | +1.5 pts |
Only 23.4% of households in Jefferson rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Among homeowners, 36.1% 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 Jefferson
| Period | Jefferson | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 3.8% | 11.3% | 11.4% |
| 2010–14 | 12.0% | 10.7% | 11.4% |
| 2015–19 | 5.2% | 11.6% | 11.1% |
| 2020–24 | 1.1% | 10.3% | 9.6% |
| Change | −2.7 pts | −1.1 pts | −1.8 pts |
Empty homes are scarce in Jefferson: just 1.1% sit vacant, compared with 9.6% nationally, a sign of a tight housing market.
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 Jefferson
| Period | Jefferson | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 1980 | 1972 | 1974 |
| 2010–14 | 1983 | 1974 | 1975 |
| 2015–19 | 1984 | 1977 | 1977 |
| 2020–24 | 1986 | 1981 | 1980 |
| Change | +5 | +9 | +6 |
Homes in Jefferson are a bit newer than the national norm: the median home was built in 1986, 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 Jefferson
| Period | Jefferson | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | $687 | $631 | $965 |
| 2010–14 | $681 | $692 | $1,040 |
| 2015–19 | $902 | $798 | $1,213 |
| 2020–24 | $1,140 | $1,000 | $1,571 |
| Change | +$453 | +$369 | +$606 |
A typical rental in Jefferson costs $1,140 a month with utilities, well below the national median of $1,571. Even so, rents here are higher than in South Dakota as a whole ($1,000). Rent takes 24.5% of the typical renter's income, comfortably under 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 Jefferson
Bachelor's degrees in Jefferson
| Period | Jefferson | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 21.7% | 26.8% | 28.4% |
| 2010–14 | 26.3% | 27.8% | 29.6% |
| 2015–19 | 23.1% | 29.4% | 32.1% |
| 2020–24 | 30.8% | 32.5% | 35.6% |
| Change | +9.1 pts | +5.6 pts | +7.2 pts |
About three in ten adults 25 and older in Jefferson (30.8%) have a bachelor's degree or higher, a little below the national share of 35.6%. The picture is much the same across South Dakota.
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 Jefferson
| Period | Jefferson | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 87.7% | 89.9% | 84.9% |
| 2010–14 | 90.4% | 91.0% | 86.1% |
| 2015–19 | 91.1% | 91.8% | 87.7% |
| 2020–24 | 92.7% | 93.1% | 89.3% |
| Change | +5.0 pts | +3.2 pts | +4.3 pts |
About nine in ten adults in Jefferson have finished high school (92.7%), above the national rate of 89.3%. The picture is much the same across South Dakota.
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 Jefferson
| Period | Jefferson | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 3.7% | 4.9% | 8.1% |
| 2010–14 | 4.0% | 4.9% | 9.4% |
| 2015–19 | 2.4% | 3.6% | 5.6% |
| 2020–24 | 4.8% | 3.1% | 5.4% |
| Change | +1.2 pts | −1.7 pts | −2.7 pts |
Unemployment in Jefferson is close to the national rate: 4.8% of the labor force, against 5.4%. The rate is higher than in South Dakota as a whole (3.1%). 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).
Jefferson 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Jefferson | 2.17 | 40.6 | 8.9% | 23.4% | 1.1% | 1986 | $1,140 | 30.8% | 92.7% | 4.8% |
| North Sioux City | 2.35 | 40.7 | 5.0% | 35.0% | 2.8% | 2000 | $1,155 | 46.4% | 97.5% | 3.9% |
| Willis | 2.73 | 41.3 | 5.9% | 15.9% | 5.6% | 1973 | $1,023 | 19.5% | 88.8% | 2.8% |
| Ponca | 2.33 | 42.2 | 7.8% | 24.0% | 12.2% | 1966 | $690 | 25.7% | 93.8% | 2.2% |
| Jackson | 2.73 | 41.3 | 5.9% | 15.9% | 5.6% | 1973 | $1,023 | 19.5% | 88.8% | 2.8% |
| Elk Point | 2.50 | 36.8 | 8.5% | 19.0% | 7.2% | 1984 | $1,070 | 29.3% | 95.9% | 2.8% |
| Sioux City | 2.65 | 36.2 | 16.1% | 34.1% | 8.1% | 1959 | $1,071 | 22.6% | 85.9% | 4.2% |
| South Sioux City | 2.97 | 32.9 | 13.9% | 41.8% | 6.7% | 1969 | $1,105 | 14.8% | 76.6% | 4.8% |
| Millnerville | 2.51 | 49.5 | 1.5% | 14.8% | 3.1% | 1979 | $646 | 20.0% | 93.8% | 0.3% |
| Westfield | 2.33 | 51.9 | 1.4% | 19.6% | 2.9% | 1974 | $500 | 15.1% | 92.4% | 0.5% |
| Junction City | 2.20 | 53.7 | 7.9% | 0.6% | 12.6% | 1970 | $1,069 | 29.5% | 93.8% | 0.0% |
All figures 2020–24.
Cities with similar populations: Worton, MD · Rosenhayn, NJ · Sherman, NY · Delaware City, DE · Dale, WI · Cope, SC · Constable, NY · Colquitt, LA · Collings Lakes, NJ · Colchester, IL
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 Jefferson. 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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