Population 15,056 · Census ACS 2020–24
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Population and households in Franklin County
Household size in Franklin County
| Period | Franklin County | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 3.08 | 2.72 | 2.68 |
| 2010–14 | 3.05 | 2.78 | 2.73 |
| 2015–19 | 3.07 | 2.76 | 2.71 |
| 2020–24 | 3.02 | 2.79 | 2.65 |
| Change | −0.05 | +0.07 | −0.03 |
Households in Franklin County are large by national standards, averaging 3.02 people against 2.65 for the U.S. That usually means more families with children at home. Since 2006–10, household size has edged down from 3.08, in line with the national trend.
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 Franklin County
| Period | Franklin County | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 32.3 | 35.5 | 37.7 |
| 2010–14 | 33.7 | 36.6 | 38.6 |
| 2015–19 | 35.2 | 37.6 | 39.6 |
| 2020–24 | 33.0 | 38.2 | 40.1 |
| Change | +0.7 | +2.7 | +2.3 |
Franklin County is young: half of its residents are under 33.0, compared with a national median of 40.1. The population tilts toward young families with children. The median age has crept up from 32.3 in 2006–10, a smaller shift than nationally. Few Idaho counties are younger: only three of 44.
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 Franklin County
| Period | Franklin County | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 7.9% | 10.0% | 12.3% |
| 2010–14 | 9.9% | 10.2% | 12.3% |
| 2015–19 | 9.0% | 9.3% | 11.6% |
| 2020–24 | 5.5% | 9.3% | 11.6% |
| Change | −2.4 pts | −0.7 pts | −0.6 pts |
Single parents head only 5.5% of households in Franklin County, well below the national share of 11.6%. Since 2006–10, the single-parent share has fallen 2.4 points, a much bigger shift than nationally. Franklin County has a lower share of single-parent households than at least four in five Idaho counties.
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 Franklin County
Renters in Franklin County
| Period | Franklin County | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 19.1% | 29.0% | 33.3% |
| 2010–14 | 19.7% | 30.8% | 35.6% |
| 2015–19 | 18.7% | 30.0% | 36.0% |
| 2020–24 | 21.9% | 27.9% | 34.8% |
| Change | +2.7 pts | −1.1 pts | +1.5 pts |
Franklin County is largely a place of homeowners: only 21.9% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Just over four in ten owners (42.2%) have paid off their mortgages, about the same as nationally. Since 2006–10, the renter share has risen 2.7 points, as it has nationally.
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 Franklin County
| Period | Franklin County | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 8.6% | 10.4% | 11.4% |
| 2010–14 | 8.8% | 11.0% | 11.4% |
| 2015–19 | 11.9% | 10.5% | 11.1% |
| 2020–24 | 5.5% | 9.3% | 9.6% |
| Change | −3.1 pts | −1.1 pts | −1.8 pts |
Empty homes are scarce in Franklin County: just 5.5% sit vacant, compared with 9.6% nationally, a sign of a tight housing market. Vacancy has fallen 3.1 points since 2006–10, as it has nationally. Franklin County has a lower vacancy rate than at least four in five Idaho counties.
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 Franklin County
| Period | Franklin County | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 1973 | 1982 | 1974 |
| 2010–14 | 1972 | 1984 | 1975 |
| 2015–19 | 1975 | 1986 | 1977 |
| 2020–24 | 1973 | 1989 | 1980 |
| Change | +0 | +7 | +6 |
Housing in Franklin County leans older: the median home dates to 1973, against 1980 nationally. The newest homes are mostly in the southeast, the oldest in the northeast. Franklin County has older homes than at least four in five Idaho counties.
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 Franklin County
| Period | Franklin County | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | $544 | $766 | $965 |
| 2010–14 | $699 | $820 | $1,040 |
| 2015–19 | $699 | $941 | $1,213 |
| 2020–24 | $1,056 | $1,407 | $1,571 |
| Change | +$512 | +$641 | +$606 |
The median renter in Franklin County pays $1,056 a month for rent and utilities, well below the national median of $1,571. Rent has climbed $512 a month since 2006–10, up 94%, faster than rents rose nationally. The typical renter here spends 22.6% of household income on rent, comfortably under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally. The priciest rents are in the west; the most affordable are in the south.
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 Franklin County
Bachelor's degrees in Franklin County
| Period | Franklin County | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 17.8% | 25.0% | 28.4% |
| 2010–14 | 18.6% | 25.9% | 29.6% |
| 2015–19 | 18.4% | 27.8% | 32.1% |
| 2020–24 | 22.3% | 31.7% | 35.6% |
| Change | +4.5 pts | +6.6 pts | +7.2 pts |
Fewer adults in Franklin County have a four-year degree than in the country as a whole: 22.3%, against 35.6% nationally. The share with a degree has risen 4.5 points since 2006–10, as it has nationally. College graduates are most concentrated in the northeast and least in the south.
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 Franklin County
| Period | Franklin County | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 91.3% | 88.7% | 84.9% |
| 2010–14 | 90.7% | 89.3% | 86.1% |
| 2015–19 | 90.9% | 90.8% | 87.7% |
| 2020–24 | 95.0% | 92.1% | 89.3% |
| Change | +3.6 pts | +3.4 pts | +4.3 pts |
High school completion is high in Franklin County: 95.0% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. The share with a diploma is up 3.6 points from 2006–10, mirroring the country. Franklin County has a higher share of high school graduates than the great majority of Idaho counties.
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 Franklin County
| Period | Franklin County | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 6.5% | 7.0% | 8.1% |
| 2010–14 | 6.4% | 8.1% | 9.4% |
| 2015–19 | 1.5% | 4.4% | 5.6% |
| 2020–24 | 2.5% | 3.8% | 5.4% |
| Change | −3.9 pts | −3.2 pts | −2.7 pts |
Unemployment in Franklin County has been low: just 2.5% of the labor force was out of work and looking, well below the national rate of 5.4%. Unemployment is down 3.9 points from 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).
Franklin 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Franklin County | 3.02 | 33.0 | 5.5% | 21.9% | 5.5% | 1973 | $1,056 | 22.3% | 95.0% | 2.5% |
| Oneida County | 2.47 | 39.4 | 5.3% | 11.7% | 8.6% | 1969 | $912 | 26.6% | 95.6% | 1.7% |
| Platte County | 2.21 | 46.7 | 5.6% | 23.9% | 21.9% | 1972 | $965 | 20.4% | 92.4% | 4.6% |
| Goshen County | 2.27 | 43.3 | 5.4% | 26.8% | 11.0% | 1971 | $741 | 23.5% | 94.1% | 3.5% |
| Box Butte County | 2.39 | 42.8 | 8.3% | 23.2% | 15.1% | 1964 | $814 | 20.1% | 94.0% | 1.5% |
| Grant County | 2.14 | 40.4 | 1.4% | 29.2% | 30.2% | 1960 | $867 | 28.6% | 92.3% | 0.3% |
| Hooker County | 1.86 | 43.6 | 1.8% | 44.6% | 23.6% | 1955 | $592 | 24.6% | 95.4% | 3.9% |
| Thomas County | 1.86 | 53.3 | 4.3% | 31.9% | 14.8% | 1961 | $638 | 28.7% | 91.9% | 2.1% |
| Blaine County | 2.14 | 57.5 | 1.5% | 26.4% | 34.6% | 1962 | $873 | 25.0% | 96.6% | 1.3% |
| Antelope County | 2.41 | 43.0 | 5.8% | 21.0% | 16.7% | 1960 | $668 | 21.1% | 94.0% | 1.7% |
| Madison County | 2.44 | 38.6 | 9.6% | 34.6% | 7.9% | 1970 | $894 | 24.1% | 91.3% | 2.8% |
All figures 2020–24.
Counties with similar populations: Adair County, OK · Adams County, ID · Adams County, WA · Allen County, KS · Alleghany County, NC · Yankton County, SD · Aleutians West Census Area, AK · Alexander County, IL · Yell County, AR · Morrill County, NE
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 Franklin 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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