Population 50 · Census ACS 2020–24
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Median age by neighborhoodHistory and comparison ↓︎
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Population and households in Island Mountain
Household size in Island Mountain
| Period | Island Mountain | California | U.S. |
|---|---|---|---|
| 2006–10 | 2.30 | 3.04 | 2.68 |
| 2010–14 | 2.40 | 3.10 | 2.73 |
| 2015–19 | 2.03 | 3.09 | 2.71 |
| 2020–24 | 2.13 | 3.01 | 2.65 |
| Change | −0.17 | −0.03 | −0.03 |
Island Mountain is a place of small households, averaging 2.13 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 2.30 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 Mountain
| Period | Island Mountain | California | U.S. |
|---|---|---|---|
| 2006–10 | 49.0 | 35.8 | 37.7 |
| 2010–14 | 52.2 | 36.8 | 38.6 |
| 2015–19 | 57.9 | 37.9 | 39.6 |
| 2020–24 | 60.9 | 39.0 | 40.1 |
| Change | +12.0 | +3.1 | +2.3 |
With a median age of 60.9, Island Mountain is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees.
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 Mountain
| Period | Island Mountain | California | U.S. |
|---|---|---|---|
| 2006–10 | 11.4% | 13.5% | 12.3% |
| 2010–14 | 14.3% | 13.5% | 12.3% |
| 2015–19 | 8.1% | 12.3% | 11.6% |
| 2020–24 | 4.9% | 12.3% | 11.6% |
| Change | −6.5 pts | −1.2 pts | −0.6 pts |
Single parents head only 4.9% of households in Island Mountain, 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 Mountain
Renters in Island Mountain
| Period | Island Mountain | California | U.S. |
|---|---|---|---|
| 2006–10 | 23.4% | 42.6% | 33.3% |
| 2010–14 | 33.6% | 45.2% | 35.6% |
| 2015–19 | 13.4% | 45.2% | 36.0% |
| 2020–24 | 29.3% | 44.1% | 34.8% |
| Change | +6.0 pts | +1.5 pts | +1.5 pts |
About three in ten households in Island Mountain rent their homes (29.3%), a little below the national share of 34.8%; the rest own. Among homeowners, 84.7% 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 Island Mountain
| Period | Island Mountain | California | U.S. |
|---|---|---|---|
| 2006–10 | 38.4% | 8.7% | 11.4% |
| 2010–14 | 43.6% | 8.1% | 11.4% |
| 2015–19 | 35.4% | 7.5% | 11.1% |
| 2020–24 | 41.8% | 7.3% | 9.6% |
| Change | +3.4 pts | −1.4 pts | −1.8 pts |
Vacant homes make up 41.8% of the housing in Island Mountain, 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 Mountain
| Period | Island Mountain | California | U.S. |
|---|---|---|---|
| 2006–10 | 1975 | 1972 | 1974 |
| 2010–14 | 1975 | 1973 | 1975 |
| 2015–19 | 1975 | 1974 | 1977 |
| 2020–24 | 1982 | 1976 | 1980 |
| Change | +7 | +4 | +6 |
The typical home in Island Mountain was built around 1982, about the same vintage as the country's housing overall (1980). Homes here are newer than in California as a whole, where the median home dates to 1976.
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 Mountain
| Period | Island Mountain | California | U.S. |
|---|---|---|---|
| 2006–10 | $798 | $1,298 | $965 |
| 2010–14 | $906 | $1,379 | $1,040 |
| 2015–19 | $1,036 | $1,721 | $1,213 |
| 2020–24 | $1,307 | $2,229 | $1,571 |
| Change | +$509 | +$931 | +$606 |
The median renter in Island Mountain pays $1,307 a month for rent and utilities, below the national median of $1,571. The typical renter here spends 35.7% of household income on rent, well over the 30% mark often used to define affordable rent, so many renters here are stretched.
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 Mountain
Bachelor's degrees in Island Mountain
| Period | Island Mountain | California | U.S. |
|---|---|---|---|
| 2006–10 | 15.7% | 29.1% | 28.4% |
| 2010–14 | 32.7% | 30.1% | 29.6% |
| 2015–19 | 12.6% | 32.9% | 32.1% |
| 2020–24 | 13.2% | 36.3% | 35.6% |
| Change | −2.5 pts | +7.1 pts | +7.2 pts |
Fewer adults in Island Mountain have a four-year degree than in the country as a whole: 13.2%, 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 Island Mountain
| Period | Island Mountain | California | U.S. |
|---|---|---|---|
| 2006–10 | 89.7% | 79.9% | 84.9% |
| 2010–14 | 94.3% | 80.7% | 86.1% |
| 2015–19 | 90.7% | 82.6% | 87.7% |
| 2020–24 | 81.1% | 84.2% | 89.3% |
| Change | −8.6 pts | +4.3 pts | +4.3 pts |
Nearly one in five adults in Island Mountain never finished high school, well above the national share: only 81.1% 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 Island Mountain
| Period | Island Mountain | California | U.S. |
|---|---|---|---|
| 2006–10 | 11.1% | 9.2% | 8.1% |
| 2010–14 | 13.2% | 11.3% | 9.4% |
| 2015–19 | 9.1% | 6.3% | 5.6% |
| 2020–24 | 17.1% | 6.6% | 5.4% |
| Change | +6.0 pts | −2.6 pts | −2.7 pts |
Finding work has been harder in Island Mountain: 17.1% of the labor force was out of work and looking, well above 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 Mountain 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 Mountain | 2.13 | 60.9 | 4.9% | 29.3% | 41.8% | 1982 | $1,307 | 13.2% | 81.1% | 17.1% |
| Harris | 1.73 | 67.7 | 8.3% | 13.7% | 33.7% | 1990 | $1,262 | 32.2% | 99.7% | 11.1% |
| Cummings | 2.09 | 58.3 | 12.2% | 14.0% | 34.7% | 1977 | $949 | 14.8% | 76.3% | 18.2% |
| Zenia | 2.41 | 56.4 | 3.1% | 41.5% | 49.6% | 1983 | $1,672 | 7.4% | 79.0% | 11.0% |
| Alderpoint | 1.80 | 66.4 | 7.9% | 20.3% | 35.4% | 1989 | $1,301 | 29.7% | 97.8% | 12.2% |
| Covelo | 2.47 | 43.1 | 11.6% | 46.2% | 29.6% | 1971 | $984 | 11.0% | 79.5% | 21.3% |
| Leggett | 1.79 | 51.3 | 9.3% | 31.4% | 38.8% | 1978 | $949 | 30.6% | 91.0% | 3.8% |
| Piercy | 1.75 | 50.0 | 10.0% | 35.3% | 37.0% | 1977 | $985 | 32.0% | 93.5% | 2.4% |
| Benbow | 1.87 | 44.8 | 18.5% | 45.1% | 16.0% | 1971 | $1,406 | 22.2% | 91.9% | 6.4% |
| Fort Seward | 2.75 | 29.4 | 8.4% | 17.6% | 43.0% | 1982 | $1,267 | 23.5% | 86.3% | 31.5% |
| Garberville | 2.11 | 46.2 | 11.0% | 38.9% | 15.0% | 1977 | $1,154 | 23.0% | 88.0% | 2.8% |
All figures 2020–24.
Cities with similar populations: Searles, AL · Laughlin Air Force Base, TX · Laura Lee Mine, WV · Laurel Hill, RI · Lawen, OR · Lead Mine, WI · Leaksville Junction, VA · Lebanon, SD · Lee Valley, TN · Leeds, 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 Island Mountain. 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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