Population 546 · Census ACS 2020–24
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Population and households in Island Park
Household size in Island Park
| Period | Island Park | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 2.49 | 2.72 | 2.68 |
| 2010–14 | 2.31 | 2.78 | 2.73 |
| 2015–19 | 2.43 | 2.76 | 2.71 |
| 2020–24 | 2.10 | 2.79 | 2.65 |
| Change | −0.39 | +0.07 | −0.03 |
Households in Island Park are small: just 2.10 people on average, compared with 2.65 nationally. That is typical of places where many people live alone or as couples, and fewer have children at home. Household size has dropped from 2.49 in 2006–10, 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 Island Park
| Period | Island Park | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 45.5 | 35.5 | 37.7 |
| 2010–14 | 54.2 | 36.6 | 38.6 |
| 2015–19 | 54.3 | 37.6 | 39.6 |
| 2020–24 | 62.3 | 38.2 | 40.1 |
| Change | +16.8 | +2.7 | +2.3 |
Island Park skews older: half of its residents are older than 62.3, well above the national median of 40.1. That usually means more empty nesters and retirees, and fewer young families.
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 Island Park
| Period | Island Park | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 4.6% | 10.0% | 12.3% |
| 2010–14 | 1.5% | 10.2% | 12.3% |
| 2015–19 | 2.1% | 9.3% | 11.6% |
| 2020–24 | 0.9% | 9.3% | 11.6% |
| Change | −3.7 pts | −0.7 pts | −0.6 pts |
Single parents head only 0.9% of households in Island Park, 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 Island Park
Renters in Island Park
| Period | Island Park | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 13.5% | 29.0% | 33.3% |
| 2010–14 | 8.6% | 30.8% | 35.6% |
| 2015–19 | 11.1% | 30.0% | 36.0% |
| 2020–24 | 2.6% | 27.9% | 34.8% |
| Change | −11.0 pts | −1.1 pts | +1.5 pts |
Only 2.6% of households in Island Park rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. About six in ten owners (61.6%) 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 Island Park
| Period | Island Park | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 85.5% | 10.4% | 11.4% |
| 2010–14 | 87.1% | 11.0% | 11.4% |
| 2015–19 | 90.0% | 10.5% | 11.1% |
| 2020–24 | 86.8% | 9.3% | 9.6% |
| Change | +1.2 pts | −1.1 pts | −1.8 pts |
Vacant homes make up 86.8% of the housing in Island Park, 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 Island Park
| Period | Island Park | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 1981 | 1982 | 1974 |
| 2010–14 | 1984 | 1984 | 1975 |
| 2015–19 | 1988 | 1986 | 1977 |
| 2020–24 | 1983 | 1989 | 1980 |
| Change | +2 | +7 | +6 |
Homes in Island Park are about the same age as the nation's housing: the median home was built in 1983, versus 1980 nationally. Homes here are older than in Idaho overall, where the median home dates to 1989.
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 Island Park
| Period | Island Park | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | $139 | $766 | $965 |
| 2010–14 | $649 | $820 | $1,040 |
| 2015–19 | $798 | $941 | $1,213 |
| 2020–24 | $864 | $1,407 | $1,571 |
| Change | +$725 | +$641 | +$606 |
A typical rental in Island Park costs $864 a month with utilities, well below the national median of $1,571. The typical renter here spends 12.5% of household income on rent, comfortably 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 Island Park
Bachelor's degrees in Island Park
| Period | Island Park | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 53.9% | 25.0% | 28.4% |
| 2010–14 | 41.2% | 25.9% | 29.6% |
| 2015–19 | 47.1% | 27.8% | 32.1% |
| 2020–24 | 35.1% | 31.7% | 35.6% |
| Change | −18.8 pts | +6.6 pts | +7.2 pts |
Just over a third of adults 25 and older in Island Park (35.1%) hold at least a bachelor's degree, close to the national share of 35.6%. The share is higher than in Idaho overall (31.7%).
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 Island Park
| Period | Island Park | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 95.6% | 88.7% | 84.9% |
| 2010–14 | 95.7% | 89.3% | 86.1% |
| 2015–19 | 96.2% | 90.8% | 87.7% |
| 2020–24 | 96.8% | 92.1% | 89.3% |
| Change | +1.2 pts | +3.4 pts | +4.3 pts |
High school completion is high in Island Park: 96.8% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%.
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 Island Park
| Period | Island Park | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 0.0% | 7.0% | 8.1% |
| 2010–14 | 3.9% | 8.1% | 9.4% |
| 2015–19 | 3.2% | 4.4% | 5.6% |
| 2020–24 | 1.7% | 3.8% | 5.4% |
| Change | +1.7 pts | −3.2 pts | −2.7 pts |
Unemployment in Island Park has been low: just 1.7% 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).
Island Park 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Island Park | 2.10 | 62.3 | 0.9% | 2.6% | 86.8% | 1983 | $864 | 35.1% | 96.8% | 1.7% |
| Macks Inn | 2.10 | 62.3 | 0.9% | 2.6% | 86.8% | 1983 | $864 | 35.1% | 96.8% | 1.7% |
| West Yellowstone | 2.55 | 38.1 | 6.4% | 39.7% | 49.4% | 1988 | $1,058 | 30.8% | 89.3% | 2.1% |
| Warm River | 2.28 | 63.4 | 4.7% | 3.9% | 53.2% | 1981 | $1,067 | 32.4% | 99.2% | 0.4% |
| Marysville | 2.43 | 51.1 | 4.1% | 11.7% | 39.3% | 1975 | $1,159 | 27.4% | 90.3% | 3.3% |
| Ashton | 2.51 | 47.9 | 4.5% | 12.5% | 17.3% | 1959 | $1,132 | 23.5% | 91.8% | 2.4% |
| Drummond | 2.37 | 61.3 | 6.0% | 5.9% | 38.9% | 1980 | $1,105 | 30.5% | 98.0% | 0.6% |
| Lamont | 2.39 | 60.5 | 6.0% | 6.4% | 38.0% | 1979 | $1,113 | 30.2% | 97.4% | 0.9% |
| Chester | 2.72 | 47.2 | 4.5% | 15.3% | 16.5% | 1991 | $967 | 26.0% | 87.7% | 2.8% |
| Twin Groves | 2.87 | 45.7 | 5.6% | 13.9% | 14.6% | 1987 | $804 | 28.1% | 93.2% | 3.4% |
| Monida | 2.28 | 57.9 | 1.3% | 22.8% | 38.2% | 1975 | $716 | 23.0% | 91.7% | 3.5% |
All figures 2020–24.
Cities with similar populations: Adrian, OH · Broadus, MT · Bowling Green, IN · Tiffany, WI · Wisemantown, KY · Wrights Corner, IL · Beatty, NV · Ballard, WV · Ballantine, MT · Axtell, KS
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 Island Park. 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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