Franklin County's estimated 2026 population is 16,116 with a growth rate of 1.43% in the past year according to the most recent United States census data. Franklin County is the 22nd largest county in Idaho. The 2010 population was 12,782 and has seen a growth of 26.08% since that time.
Data after 2023 is projected based on recent change
Overall: 33.3 years
Female: 34.5 years
Male: 32.3 years
There are 10,463 adults, (2,249 of whom are seniors) in Franklin County.
Female: 7,224 (48%)
Male: 7,832 (52%)
The racial composition of Franklin County includes 90.71% White, 3.53% other race, and smaller percentages for Native American, Black or African American, Native Hawaiian or Pacific Islander, Asian and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 13,658 | 90.71% |
| Two or more races | 776 | 5.15% |
| Other race | 532 | 3.53% |
| Native American | 52 | 0.35% |
| Black or African American | 16 | 0.11% |
| Native Hawaiian or Pacific Islander | 13 | 0.09% |
| Asian | 9 | 0.06% |
Franklin County's average per capita income is $47,820. Household income levels show a median of $71,950. The poverty rate stands at 7.88%.
Name | Median | Mean |
|---|---|---|
| Married Families | $92,411 | - |
| Families | $86,933 | $106,259 |
| Households | $71,950 | $94,804 |
| Non Families | $33,125 | $37,275 |
Average Income
Median Household Income
Poverty Rate
