Population 1,004 · Census ACS 2020–24
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Population and households in Sulphur
Household size in Sulphur
| Period | Sulphur | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 2.10 | 2.51 | 2.68 |
| 2010–14 | 2.59 | 2.51 | 2.73 |
| 2015–19 | 2.42 | 2.50 | 2.71 |
| 2020–24 | 2.62 | 2.48 | 2.65 |
| Change | +0.52 | −0.03 | −0.03 |
Households in Sulphur average 2.62 people, about the same as the country as a whole (2.65). The typical household here is bigger than in South Dakota as a whole, where it has 2.48 people. Since 2006–10, household size has climbed from 2.10, but in a place this small, much of that may be survey noise rather than real change.
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 Sulphur
| Period | Sulphur | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 40.5 | 37.9 | 37.7 |
| 2010–14 | 32.9 | 38.3 | 38.6 |
| 2015–19 | 33.3 | 38.8 | 39.6 |
| 2020–24 | 43.3 | 38.9 | 40.1 |
| Change | +2.8 | +1.0 | +2.3 |
The median resident of Sulphur is 43.3 years old, older 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 Sulphur
| Period | Sulphur | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 13.6% | 10.8% | 12.3% |
| 2010–14 | 11.0% | 11.1% | 12.3% |
| 2015–19 | 14.3% | 10.9% | 11.6% |
| 2020–24 | 14.7% | 10.7% | 11.6% |
| Change | +1.1 pts | −0.1 pts | −0.6 pts |
Single parents head about one in seven households in Sulphur (14.7%), well above the national share of 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 Sulphur
Renters in Sulphur
| Period | Sulphur | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 35.4% | 31.1% | 33.3% |
| 2010–14 | 30.1% | 32.0% | 35.6% |
| 2015–19 | 34.3% | 32.0% | 36.0% |
| 2020–24 | 35.9% | 31.4% | 34.8% |
| Change | +0.6 pts | +0.3 pts | +1.5 pts |
More than a third of households in Sulphur rent their homes (35.9%), close to the national share of 34.8%. Renters make up a bigger share here than in South Dakota overall (31.4%). Among homeowners, 33.3% 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 Sulphur
| Period | Sulphur | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 9.0% | 11.3% | 11.4% |
| 2010–14 | 10.6% | 10.7% | 11.4% |
| 2015–19 | 5.5% | 11.6% | 11.1% |
| 2020–24 | 2.8% | 10.3% | 9.6% |
| Change | −6.2 pts | −1.1 pts | −1.8 pts |
Empty homes are scarce in Sulphur: just 2.8% 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 Sulphur
| Period | Sulphur | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 1990 | 1972 | 1974 |
| 2010–14 | 2000 | 1974 | 1975 |
| 2015–19 | 2001 | 1977 | 1977 |
| 2020–24 | 2005 | 1981 | 1980 |
| Change | +15 | +9 | +6 |
Sulphur has newer housing than the country as a whole: the median home was built in 2005, versus 1980 nationally.
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 Sulphur
| Period | Sulphur | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | $608 | $631 | $965 |
| 2010–14 | $849 | $692 | $1,040 |
| 2015–19 | $769 | $798 | $1,213 |
| 2020–24 | $1,095 | $1,000 | $1,571 |
| Change | +$487 | +$369 | +$606 |
Rent in Sulphur runs $1,095 a month at the median, utilities included, well below the U.S. median of $1,571. Even so, rents here are higher than in South Dakota overall ($1,000). The typical renter here spends 30.6% of household income on rent, 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 Sulphur
Bachelor's degrees in Sulphur
| Period | Sulphur | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 21.2% | 26.8% | 28.4% |
| 2010–14 | 21.0% | 27.8% | 29.6% |
| 2015–19 | 38.4% | 29.4% | 32.1% |
| 2020–24 | 21.4% | 32.5% | 35.6% |
| Change | +0.2 pts | +5.6 pts | +7.2 pts |
Fewer adults in Sulphur have a four-year degree than in the country as a whole: 21.4%, 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 Sulphur
| Period | Sulphur | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 81.3% | 89.9% | 84.9% |
| 2010–14 | 93.0% | 91.0% | 86.1% |
| 2015–19 | 91.6% | 91.8% | 87.7% |
| 2020–24 | 94.1% | 93.1% | 89.3% |
| Change | +12.7 pts | +3.2 pts | +4.3 pts |
High school completion in Sulphur is above the national rate: 94.1% of adults have a diploma or equivalent, against 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 Sulphur
| Period | Sulphur | South Dakota | U.S. |
|---|---|---|---|
| 2006–10 | 3.2% | 4.9% | 8.1% |
| 2010–14 | 1.0% | 4.9% | 9.4% |
| 2015–19 | 2.5% | 3.6% | 5.6% |
| 2020–24 | 3.6% | 3.1% | 5.4% |
| Change | +0.4 pts | −1.7 pts | −2.7 pts |
Unemployment in Sulphur runs below the national rate: 3.6% of the labor force was out of work and looking, against 5.4% nationally. That is in line with the rest of South Dakota. 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).
Sulphur 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Sulphur | 2.62 | 43.3 | 14.7% | 35.9% | 2.8% | 2005 | $1,095 | 21.4% | 94.1% | 3.6% |
| Rapid City | 2.36 | 40.8 | 10.7% | 33.1% | 10.1% | 1983 | $1,199 | 37.0% | 94.8% | 2.9% |
| Black Hawk | 2.32 | 46.9 | 4.9% | 17.8% | 2.6% | 1990 | $1,178 | 24.2% | 97.6% | 3.7% |
| Ashland Heights | 3.16 | 53.8 | 8.6% | 3.8% | 5.9% | 1961 | $1,248 | 13.3% | 97.3% | 22.7% |
| Rapid Valley | 2.27 | 39.5 | 6.0% | 15.4% | 6.7% | 1995 | $1,368 | 25.6% | 93.5% | 3.9% |
| Summerset | 2.50 | 42.8 | 6.1% | 11.2% | 1.4% | 1995 | $1,139 | 29.6% | 97.2% | 3.2% |
| Box Elder | 2.82 | 33.1 | 12.6% | 37.9% | 9.4% | 1994 | $1,400 | 24.7% | 90.8% | 5.9% |
| Ellsworth Afb | 2.87 | 23.8 | 9.3% | 85.7% | 12.4% | 2005 | $1,643 | 33.3% | 96.1% | 3.2% |
| Piedmont | 2.48 | 43.6 | 9.5% | 9.0% | 9.1% | 1994 | $1,045 | 30.3% | 97.1% | 1.7% |
| Johnson Siding | 2.34 | 56.0 | 5.7% | 7.5% | 23.0% | 1979 | $1,056 | 44.6% | 97.6% | 1.1% |
| Bethlehem | 2.47 | 45.4 | 8.3% | 8.6% | 12.6% | 1995 | $885 | 34.3% | 94.8% | 0.5% |
All figures 2020–24.
Cities with similar populations: Escabosa, NM · Thrall, WA · Thompson, PA · Telephone, TX · Tatnic, ME · Summerville, OR · Fort Garland, CO · Footville, WI · Fallsburg, KY · Fall River Mills, CA
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 Sulphur. 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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