Population 2,345 · Census ACS 2020–24
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Population and households in Mammoth Spring
Household size in Mammoth Spring
| Period | Mammoth Spring | Arkansas | U.S. |
|---|---|---|---|
| 2006–10 | 2.57 | 2.54 | 2.68 |
| 2010–14 | 2.21 | 2.57 | 2.73 |
| 2015–19 | 2.22 | 2.55 | 2.71 |
| 2020–24 | 2.57 | 2.53 | 2.65 |
| Change | +0.00 | −0.00 | −0.03 |
Households in Mammoth Spring average 2.57 people, about the same as the country as a whole (2.65).
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 Mammoth Spring
| Period | Mammoth Spring | Arkansas | U.S. |
|---|---|---|---|
| 2006–10 | 41.0 | 37.9 | 37.7 |
| 2010–14 | 49.2 | 38.7 | 38.6 |
| 2015–19 | 47.5 | 39.5 | 39.6 |
| 2020–24 | 48.5 | 39.6 | 40.1 |
| Change | +7.5 | +1.7 | +2.3 |
Mammoth Spring skews older: half of its residents are older than 48.5, well above the national median of 40.1. That usually means more empty nesters and retirees, and fewer young families. Since 2006–10, the median age has climbed from 41.0, 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 Mammoth Spring
| Period | Mammoth Spring | Arkansas | U.S. |
|---|---|---|---|
| 2006–10 | 6.9% | 12.5% | 12.3% |
| 2010–14 | 14.1% | 12.5% | 12.3% |
| 2015–19 | 11.6% | 12.3% | 11.6% |
| 2020–24 | 6.0% | 12.3% | 11.6% |
| Change | −0.8 pts | −0.2 pts | −0.6 pts |
Single parents head only 6.0% of households in Mammoth Spring, well below 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 Mammoth Spring
Renters in Mammoth Spring
| Period | Mammoth Spring | Arkansas | U.S. |
|---|---|---|---|
| 2006–10 | 18.6% | 32.3% | 33.3% |
| 2010–14 | 26.8% | 33.5% | 35.6% |
| 2015–19 | 13.3% | 34.4% | 36.0% |
| 2020–24 | 12.7% | 33.6% | 34.8% |
| Change | −5.9 pts | +1.3 pts | +1.5 pts |
Only 12.7% of households in Mammoth Spring rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Among homeowners, 51.2% 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 Mammoth Spring
| Period | Mammoth Spring | Arkansas | U.S. |
|---|---|---|---|
| 2006–10 | 33.3% | 13.4% | 11.4% |
| 2010–14 | 25.1% | 13.9% | 11.4% |
| 2015–19 | 34.6% | 14.4% | 11.1% |
| 2020–24 | 28.8% | 13.1% | 9.6% |
| Change | −4.6 pts | −0.3 pts | −1.8 pts |
Vacant homes make up 28.8% of the housing in Mammoth Spring, 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 Mammoth Spring
| Period | Mammoth Spring | Arkansas | U.S. |
|---|---|---|---|
| 2006–10 | 1973 | 1981 | 1974 |
| 2010–14 | 1978 | 1983 | 1975 |
| 2015–19 | 1980 | 1985 | 1977 |
| 2020–24 | 1982 | 1988 | 1980 |
| Change | +9 | +6 | +6 |
The typical home in Mammoth Spring was built around 1982, about the same vintage as the country's housing overall (1980). Homes here are older than in Arkansas as a whole, where the median home dates to 1988.
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 Mammoth Spring
| Period | Mammoth Spring | Arkansas | U.S. |
|---|---|---|---|
| 2006–10 | $388 | $660 | $965 |
| 2010–14 | $452 | $718 | $1,040 |
| 2015–19 | $509 | $785 | $1,213 |
| 2020–24 | $543 | $1,007 | $1,571 |
| Change | +$155 | +$346 | +$606 |
Rent in Mammoth Spring runs $543 a month at the median, utilities included, well below the U.S. median of $1,571. The typical renter here spends 28.8% of household income on rent, just under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally.
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 Mammoth Spring
Bachelor's degrees in Mammoth Spring
| Period | Mammoth Spring | Arkansas | U.S. |
|---|---|---|---|
| 2006–10 | 8.5% | 20.6% | 28.4% |
| 2010–14 | 8.2% | 21.8% | 29.6% |
| 2015–19 | 10.0% | 23.8% | 32.1% |
| 2020–24 | 16.7% | 26.2% | 35.6% |
| Change | +8.2 pts | +5.6 pts | +7.2 pts |
Fewer adults in Mammoth Spring have a four-year degree than in the country as a whole: 16.7%, 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 Mammoth Spring
| Period | Mammoth Spring | Arkansas | U.S. |
|---|---|---|---|
| 2006–10 | 80.6% | 82.6% | 84.9% |
| 2010–14 | 83.5% | 84.6% | 86.1% |
| 2015–19 | 87.0% | 86.6% | 87.7% |
| 2020–24 | 87.7% | 88.7% | 89.3% |
| Change | +7.0 pts | +6.1 pts | +4.3 pts |
About one in eight adults in Mammoth Spring never finished high school, a bit more than nationally: 87.7% have a diploma or equivalent, against 89.3% across the U.S. That is in line with the rest of Arkansas.
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 Mammoth Spring
| Period | Mammoth Spring | Arkansas | U.S. |
|---|---|---|---|
| 2006–10 | 12.4% | 7.7% | 8.1% |
| 2010–14 | 11.2% | 8.4% | 9.4% |
| 2015–19 | 3.6% | 5.2% | 5.6% |
| 2020–24 | 6.1% | 5.1% | 5.4% |
| Change | −6.2 pts | −2.6 pts | −2.7 pts |
Jobs have been a little harder to find in Mammoth Spring than nationally: unemployment was 6.1%, 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).
Mammoth Spring 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Mammoth Spring | 2.57 | 48.5 | 6.0% | 12.7% | 28.8% | 1982 | $543 | 16.7% | 87.7% | 6.1% |
| Thayer | 2.65 | 44.4 | 16.2% | 28.7% | 19.1% | 1973 | $840 | 15.6% | 82.9% | 6.1% |
| Woodland Hills | 2.27 | 54.3 | 2.9% | 9.4% | 38.5% | 1989 | $590 | 13.7% | 90.1% | 5.1% |
| Wirth | 2.19 | 55.8 | 4.9% | 8.4% | 30.2% | 1985 | $830 | 12.1% | 90.1% | 1.9% |
| Koshkonong | 3.13 | 47.4 | 13.6% | 20.3% | 28.8% | 1984 | $759 | 12.7% | 80.1% | 8.9% |
| Saddle | 2.49 | 46.7 | 6.0% | 12.6% | 19.0% | 1986 | $800 | 18.7% | 91.2% | 3.1% |
| Farewell | 3.40 | 50.9 | 11.4% | 7.5% | 25.4% | 1972 | $804 | 8.4% | 88.4% | 7.0% |
| Camp | 2.21 | 56.5 | 6.6% | 13.3% | 21.2% | 1992 | $573 | 19.4% | 92.9% | 0.3% |
| Hardy | 2.61 | 44.8 | 6.7% | 19.9% | 37.3% | 1979 | $526 | 12.7% | 86.4% | 6.1% |
| Garfield | 3.34 | 47.7 | 10.2% | 6.1% | 24.0% | 1974 | $793 | 8.1% | 89.4% | 6.1% |
| Dennison Heights | 2.66 | 44.1 | 6.3% | 25.1% | 33.8% | 1977 | $476 | 11.5% | 85.7% | 6.8% |
All figures 2020–24.
Cities with similar populations: Springville, IA · Junction City, WI · Lake Linden, MI · Lakeside, OR · Manchester, NY · Mount Hermon, LA · Moyie Springs, ID · Palo, IA · Shoals, IN · Sidman, PA
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 Mammoth Spring. 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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