Population 17,432 · Census ACS 2020–24
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Population and households in Idaho County
Household size in Idaho County
| Period | Idaho County | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 2.33 | 2.72 | 2.68 |
| 2010–14 | 2.42 | 2.78 | 2.73 |
| 2015–19 | 2.46 | 2.76 | 2.71 |
| 2020–24 | 2.52 | 2.79 | 2.65 |
| Change | +0.19 | +0.07 | −0.03 |
Households in Idaho County run a little small, averaging 2.52 people against 2.65 nationally, which usually means more singles and couples and fewer children. Since 2006–10, household size has climbed from 2.33, even as the national average fell. The biggest households, usually families with children, are concentrated in the northwest.
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 Idaho County
| Period | Idaho County | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 46.0 | 35.5 | 37.7 |
| 2010–14 | 47.6 | 36.6 | 38.6 |
| 2015–19 | 50.0 | 37.6 | 39.6 |
| 2020–24 | 48.5 | 38.2 | 40.1 |
| Change | +2.5 | +2.7 | +2.3 |
Idaho County 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. The median age has climbed from 46.0 in 2006–10, mirroring the country.
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 Idaho County
| Period | Idaho County | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 10.3% | 10.0% | 12.3% |
| 2010–14 | 6.7% | 10.2% | 12.3% |
| 2015–19 | 4.3% | 9.3% | 11.6% |
| 2020–24 | 7.7% | 9.3% | 11.6% |
| Change | −2.7 pts | −0.7 pts | −0.6 pts |
Single-parent households are relatively rare in Idaho County: 7.7% of households, against 11.6% nationally. The single-parent share has fallen 2.7 points since 2006–10, a much bigger shift than 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 Idaho County
Renters in Idaho County
| Period | Idaho County | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 24.2% | 29.0% | 33.3% |
| 2010–14 | 20.2% | 30.8% | 35.6% |
| 2015–19 | 23.3% | 30.0% | 36.0% |
| 2020–24 | 19.1% | 27.9% | 34.8% |
| Change | −5.1 pts | −1.1 pts | +1.5 pts |
Only 19.1% of households in Idaho County rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Nearly six in ten owners (57.9%) have paid off their mortgages, well above the national share of 39.8%. Renting is most common in the center and least common in the north. The renter share has fallen 5.1 points since 2006–10, even as the national share rose.
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 Idaho County
| Period | Idaho County | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 19.7% | 10.4% | 11.4% |
| 2010–14 | 21.7% | 11.0% | 11.4% |
| 2015–19 | 22.8% | 10.5% | 11.1% |
| 2020–24 | 22.1% | 9.3% | 9.6% |
| Change | +2.4 pts | −1.1 pts | −1.8 pts |
Vacancy is high in Idaho County: 22.1% of homes are empty, 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. Vacancy has risen 2.4 points since 2006–10, even as the national rate fell.
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 Idaho County
| Period | Idaho County | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 1974 | 1982 | 1974 |
| 2010–14 | 1974 | 1984 | 1975 |
| 2015–19 | 1980 | 1986 | 1977 |
| 2020–24 | 1977 | 1989 | 1980 |
| Change | +3 | +7 | +6 |
Homes in Idaho County are about the same age as the nation's housing: the median home was built in 1977, versus 1980 nationally. Homes here are older than in Idaho as a whole, 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 Idaho County
| Period | Idaho County | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | $540 | $766 | $965 |
| 2010–14 | $584 | $820 | $1,040 |
| 2015–19 | $679 | $941 | $1,213 |
| 2020–24 | $882 | $1,407 | $1,571 |
| Change | +$341 | +$641 | +$606 |
The median renter in Idaho County pays $882 a month for rent and utilities, well below the national median of $1,571. Rents are up $341 a month from 2006–10, a 63% jump, roughly in step with the nation. The typical renter here spends 23.3% of household income on rent, comfortably under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally. Rents run highest in the center and lowest in the north.
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 Idaho County
Bachelor's degrees in Idaho County
| Period | Idaho County | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 12.1% | 25.0% | 28.4% |
| 2010–14 | 17.1% | 25.9% | 29.6% |
| 2015–19 | 20.2% | 27.8% | 32.1% |
| 2020–24 | 22.9% | 31.7% | 35.6% |
| Change | +10.8 pts | +6.6 pts | +7.2 pts |
College degrees are relatively uncommon in Idaho County: 22.9% of adults 25 and older hold a bachelor's or higher, well below the national share of 35.6%. Since 2006–10, the share with a degree has risen 10.8 points, in line with the national trend.
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 Idaho County
| Period | Idaho County | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 86.2% | 88.7% | 84.9% |
| 2010–14 | 90.1% | 89.3% | 86.1% |
| 2015–19 | 90.7% | 90.8% | 87.7% |
| 2020–24 | 92.1% | 92.1% | 89.3% |
| Change | +6.0 pts | +3.4 pts | +4.3 pts |
About nine in ten adults in Idaho County have finished high school (92.1%), a bit above the national rate of 89.3%. The picture is much the same across Idaho. Since 2006–10, the share with a diploma has risen 6.0 points, as it has 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 Idaho County
| Period | Idaho County | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 9.4% | 7.0% | 8.1% |
| 2010–14 | 9.0% | 8.1% | 9.4% |
| 2015–19 | 6.2% | 4.4% | 5.6% |
| 2020–24 | 3.4% | 3.8% | 5.4% |
| Change | −6.0 pts | −3.2 pts | −2.7 pts |
Jobs have been easier to find in Idaho County than nationally: unemployment was 3.4%, against 5.4%. Unemployment has fallen 6.0 points since 2006–10, as it has nationally. Each figure pools five years of surveys (2020–24), so it describes that whole stretch rather than today's 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).
Idaho County compared with nearby counties
| County | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Idaho County | 2.52 | 48.5 | 7.7% | 19.1% | 22.1% | 1977 | $882 | 22.9% | 92.1% | 3.4% |
| Lewis County | 2.30 | 48.4 | 7.5% | 23.6% | 14.0% | 1964 | $757 | 21.2% | 91.4% | 2.2% |
| Clearwater County | 2.31 | 51.4 | 7.2% | 17.1% | 18.0% | 1977 | $897 | 17.1% | 91.5% | 4.4% |
| Nez Perce County | 2.45 | 42.2 | 13.1% | 29.6% | 8.5% | 1971 | $1,070 | 26.8% | 93.3% | 2.7% |
| Asotin County | 2.40 | 46.4 | 10.4% | 26.8% | 9.1% | 1976 | $1,133 | 23.9% | 92.2% | 4.8% |
| Wallowa County | 2.22 | 49.3 | 8.5% | 27.5% | 21.5% | 1970 | $1,127 | 38.7% | 93.9% | 3.7% |
| Garfield County | 2.29 | 47.4 | 2.4% | 23.1% | 15.7% | 1961 | $810 | 31.1% | 94.1% | 5.9% |
| Columbia County | 2.11 | 49.5 | 9.6% | 22.3% | 15.8% | 1956 | $1,020 | 23.9% | 89.1% | 4.2% |
| Ravalli County | 2.56 | 48.6 | 6.0% | 20.6% | 12.3% | 1988 | $1,131 | 29.0% | 93.4% | 3.0% |
| Walla Walla County | 2.59 | 39.0 | 11.4% | 35.0% | 9.6% | 1971 | $1,268 | 29.6% | 89.6% | 6.7% |
| Granite County | 2.25 | 52.4 | 6.0% | 22.1% | 36.5% | 1981 | $678 | 33.6% | 93.9% | 3.7% |
All figures 2020–24.
Counties with similar populations: Hancock County, KY · Hamilton County, FL · Hamilton County, IA · Hamilton County, IL · Hamilton County, NE · Hamilton County, TX · Hampshire County, WV · Hampton County, SC · Hancock County, GA · Hancock County, IA
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 Idaho County. 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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