Population 775 · Census ACS 2020–24
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Population and households in Allen
Household size in Allen
| Period | Allen | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 3.36 | 2.51 | 2.68 |
| 2010–14 | 4.00 | 2.51 | 2.73 |
| 2015–19 | 3.95 | 2.50 | 2.71 |
| 2020–24 | 4.43 | 2.48 | 2.65 |
| Change | +1.06 | −0.03 | −0.03 |
Households in Allen are large by national standards, averaging 4.43 people against 2.65 for the U.S. That usually means more families with children at home. Household size has climbed from 3.36 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 Allen
| Period | Allen | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 29.0 | 37.9 | 37.7 |
| 2010–14 | 24.5 | 38.3 | 38.6 |
| 2015–19 | 27.3 | 38.8 | 39.6 |
| 2020–24 | 26.0 | 38.9 | 40.1 |
| Change | −3.1 | +1.0 | +2.3 |
With a median age of just 26.0, Allen is far younger than the country as a whole (40.1), a population that tilts toward families with many children.
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 Allen
| Period | Allen | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 32.6% | 10.8% | 12.3% |
| 2010–14 | 32.1% | 11.1% | 12.3% |
| 2015–19 | 19.5% | 10.9% | 11.6% |
| 2020–24 | 27.0% | 10.7% | 11.6% |
| Change | −5.6 pts | −0.1 pts | −0.6 pts |
Single-parent households are common in Allen: 27.0% of all 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 Allen
Renters in Allen
| Period | Allen | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 27.4% | 31.1% | 33.3% |
| 2010–14 | 40.3% | 32.0% | 35.6% |
| 2015–19 | 41.6% | 32.0% | 36.0% |
| 2020–24 | 42.2% | 31.4% | 34.8% |
| Change | +14.7 pts | +0.3 pts | +1.5 pts |
Renting is more common in Allen than nationally: 42.2% of households rent their homes, against 34.8% for the U.S. Among homeowners, 84.4% 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 Allen
| Period | Allen | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 8.7% | 11.3% | 11.4% |
| 2010–14 | 10.5% | 10.7% | 11.4% |
| 2015–19 | 20.8% | 11.6% | 11.1% |
| 2020–24 | 21.3% | 10.3% | 9.6% |
| Change | +12.5 pts | −1.1 pts | −1.8 pts |
Vacant homes make up 21.3% of the housing in Allen, 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 Allen
| Period | Allen | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 1964 | 1972 | 1974 |
| 2010–14 | 1972 | 1974 | 1975 |
| 2015–19 | 1973 | 1977 | 1977 |
| 2020–24 | 1981 | 1981 | 1980 |
| Change | +17 | +9 | +6 |
The typical home in Allen was built around 1981, about the same vintage as the country's housing overall (1980).
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 Allen
| Period | Allen | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | $575 | $631 | $965 |
| 2010–14 | $423 | $692 | $1,040 |
| 2015–19 | $528 | $798 | $1,213 |
| 2020–24 | $647 | $1,000 | $1,571 |
| Change | +$71 | +$369 | +$606 |
A typical rental in Allen costs $647 a month with utilities, well below the national median of $1,571. Rent takes 17.6% 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 Allen
Bachelor's degrees in Allen
| Period | Allen | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 17.0% | 26.8% | 28.4% |
| 2010–14 | 15.3% | 27.8% | 29.6% |
| 2015–19 | 7.9% | 29.4% | 32.1% |
| 2020–24 | 9.9% | 32.5% | 35.6% |
| Change | −7.1 pts | +5.6 pts | +7.2 pts |
Fewer adults in Allen have a four-year degree than in the country as a whole: 9.9%, 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 Allen
| Period | Allen | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 78.1% | 89.9% | 84.9% |
| 2010–14 | 78.0% | 91.0% | 86.1% |
| 2015–19 | 68.7% | 91.8% | 87.7% |
| 2020–24 | 81.4% | 93.1% | 89.3% |
| Change | +3.4 pts | +3.2 pts | +4.3 pts |
Nearly one in five adults in Allen never finished high school, well above the national share: only 81.4% 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 Allen
| Period | Allen | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 17.3% | 4.9% | 8.1% |
| 2010–14 | 12.5% | 4.9% | 9.4% |
| 2015–19 | 27.3% | 3.6% | 5.6% |
| 2020–24 | 8.7% | 3.1% | 5.4% |
| Change | −8.6 pts | −1.7 pts | −2.7 pts |
Unemployment in Allen runs well above the national rate: 8.7% 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).
Allen 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Allen | 4.43 | 26.0 | 27.0% | 42.2% | 21.3% | 1981 | $647 | 9.9% | 81.4% | 8.7% |
| Swett | 5.03 | 21.7 | 27.9% | 54.3% | 24.4% | 1984 | $653 | 10.3% | 85.0% | 1.3% |
| Martin | 3.31 | 31.5 | 24.3% | 37.9% | 19.5% | 1971 | $604 | 24.8% | 92.1% | 7.7% |
| Kyle | 3.90 | 26.4 | 34.7% | 57.6% | 13.6% | 1990 | $597 | 22.1% | 84.6% | 6.6% |
| Potato Creek | 3.76 | 34.3 | 27.0% | 21.6% | 19.6% | 1989 | $406 | 16.7% | 88.6% | 17.9% |
| Batesland | 4.57 | 26.2 | 48.4% | 42.7% | 16.4% | 1987 | $690 | 11.2% | 83.1% | 15.1% |
| Patricia | 2.90 | 36.9 | 25.0% | 21.4% | 13.4% | 1973 | $631 | 8.8% | 72.4% | 27.3% |
| Porcupine | 5.96 | 28.5 | 79.0% | 56.2% | 20.6% | 1978 | $526 | 4.8% | 36.3% | 5.7% |
| Tuthill | 4.85 | 23.0 | 27.6% | 50.3% | 23.4% | 1983 | $651 | 10.2% | 83.9% | 3.5% |
| Wanblee | 3.96 | 31.4 | 38.7% | 37.8% | 12.2% | 1981 | $419 | 6.7% | 90.6% | 5.1% |
| Wounded Knee | 4.18 | 23.4 | 61.7% | 77.5% | 15.1% | 1990 | $511 | 2.1% | 57.2% | 42.9% |
All figures 2020–24.
Cities with similar populations: Harrodsburg, IN · Westbrookville, NY · Lone Star, LA · Johnsontown, WV · Drewryville, VA · Guffey, CO · Mountain Peak, TX · Shoto, WI · Turner Crossroads, AL · Opelika, 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 Allen. 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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