County · Idaho
Franklin County, Idaho
Franklin County, Idaho. Franklin County had 15,889 residents in 2025 by the Census Bureau's estimate, up 11.9% since 2020, faster than Idaho (+10.4%). It holds 6 places (6 cities, villages and boroughs) and 2 census tracts. GEOID 16041.
Franklin County is one of the 2 counties of the Logan, UT-ID metropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
15,889
Census Bureau estimate (no margin published)
2020 Census count: 14,194 · ACS 2020-2024: 15,056
Median household income
$71,950
±$10,437 (90% margin)
Idaho: $77,800
Median home value
$372,600
±$21,000 (90% margin)
Idaho: $418,600
Median gross rent
$894
±$162 (90% margin)
Idaho: $1,238
How many people live in Franklin County, and is it growing?
The 2020 Census counted 14,194 residents in Franklin County. The Census Bureau estimates 15,889 for July 1, 2025, up 11.9% since 2020, faster than Idaho (+10.4%). The 2020-2024 American Community Survey puts the population at 15,056 over 663 square miles of land.
| Measure | Franklin County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| Total population | 15,056 | 1,934,262 | +1,592 |
| Households | 4,932±154 | 713,005 | +535 |
| Average household size | 3.04±0.09 | 2.64 | no clear change |
| Housing units | 5,212±25 | 795,014 | +375 |
Franklin County's population since 2000
From 11,329 in 2000 to 15,889 in 2025: up 40.3%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Franklin County?
Franklin County holds 6 places: 6 cities, villages and boroughs (incorporated places). The largest is Preston with 6,177 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Franklin County?
The median resident of Franklin County is 33.3 years old; 30.5% are under 18 and 14.9% are 65 or older. The largest group is non-Hispanic white residents at 89.4%, then Hispanic or Latino residents (of any race) at 7.4%. 2.6% of residents were born outside the United States.
| Measure | Franklin County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| Median age | 33.3±0.9 | 37.3 | no clear change |
| Under 18 years | 30.5%±0.2 pts | 24.1% | – |
| 65 years and over | 14.9%±0.6 pts | 17.0% | – |
| Hispanic or Latino (any race) | 7.4% | 13.6% | +0.6 pts |
| White alone, not Hispanic | 89.4%±0.5 pts | 78.6% | −1.7 pts |
| Black or African American alone, not Hispanic | 0.1%±0.2 pts | 0.7% | – |
| Asian alone, not Hispanic | 0.1%±0.1 pts | 1.3% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.1%±0.2 pts | 0.7% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.1%±0.1 pts | 0.1% | – |
| Two or more races, not Hispanic | 2.4%±0.4 pts | 4.2% | – |
| Some other race alone, not Hispanic | 0.4%±0.4 pts | 0.6% | – |
| Born outside the United States | 2.6%±0.7 pts | 5.9% | no clear change |
| Speak a language other than English at home (age 5+) | 7.1%±1.6 pts | 11.0% | – |
| Civilian veterans (age 18+) | 5.1%±1.6 pts | 8.0% | – |
| With a disability | 10.5%±1.6 pts | 14.1% | – |
| No health insurance coverage | 8.4%±2.8 pts | 9.1% | no clear change |
| High school graduate or higher (age 25+) | 95.7%±1.6 pts | 91.9% | – |
| Bachelor's degree or higher (age 25+) | 23.9%±3.6 pts | 31.8% | +6.2 pts |
| Graduate or professional degree (age 25+) | 7.1%±2.1 pts | 10.5% | – |
| Moved from another state in the past year | 5.3%±1.6 pts | 4.6% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Franklin County earn?
Half of Franklin County's 4,932 households earn less than $71,950 a year (±$10,437), against $77,800 in Idaho. In 2015-2019 it was $70,414 in 2024 dollars; the margins of error cannot tell the two periods apart. 7.9% of residents live below the poverty line.
| Measure | Franklin County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $71,950±$10,437 | $77,800 | no clear change |
| Mean household income | $94,804±$7,884 | $102,747 | – |
| Per capita income | $31,818±$2,666 | $38,952 | no clear change |
| People below the poverty line | 7.9%±2.0 pts | 10.6% | no clear change |
| Children under 18 below the poverty line | 5.9%±2.5 pts | 12.4% | −7.7 pts |
| Households receiving SNAP | 6.1%±2.3 pts | 7.6% | – |
| Households with a broadband subscription | 96.5%±1.7 pts | 91.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Franklin County?
Owners occupy 78.1% of Franklin County's occupied homes and renters 21.9%. The median owner-occupied home is valued at $372,600 by its owner (±$21,000). The median renter pays $894 a month including utilities, and 26.5% of renters pay 35% or more of their income on rent.
| Measure | Franklin County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $372,600±$21,000 | $418,600 | +$111,816 |
| Median gross rent | $894±$162 | $1,238 | no clear change |
| Renters paying 35% or more of income on rent | 26.5%±8.2 pts | 36.9% | no clear change |
| Median monthly owner costs, with a mortgage | $1,587±$139 | $1,687 | – |
| Owner-occupied homes | 78.1%±4.2 pts | 72.1% | no clear change |
| Housing units | 5,212±25 | 795,014 | +375 |
| Homeowner vacancy rate | 1.6%±2.1 pts | 0.7% | – |
| Rental vacancy rate | 0.0%±3.2 pts | 3.9% | – |
| Single-family detached homes | 87.9%±3.1 pts | 73.8% | – |
| Mobile homes | 2.2%±1.2 pts | 6.9% | – |
| Built 2020 or later | 3.9%±1.9 pts | 3.9% | – |
| Built 1939 or earlier | 25.4%±4.0 pts | 7.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Franklin County building?
Builders took permits for 64 new housing units across Franklin County in 2025 (64 single-family), 4.0 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Franklin County get to work?
74.5% of Franklin County's workers drive alone and 12.0% work from home. The average trip to work takes 24.9 minutes.
| Measure | Franklin County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 64.7%±3.0 pts | 63.0% | – |
| Unemployment rate | 2.4%±1.6 pts | 3.7% | – |
| Drove alone to work | 74.5%±4.3 pts | 72.7% | – |
| Carpooled | 8.3%±2.3 pts | 8.9% | – |
| Public transportation | 0.8%±0.7 pts | 0.5% | – |
| Walked | 3.6%±1.7 pts | 2.6% | – |
| Worked from home | 12.0%±3.2 pts | 13.3% | +7.5 pts |
| Mean travel time to work | 24.9 min±2.8 | 21.6 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What are Franklin County's census tracts?
Franklin County is divided into 2 census tracts. Among those with a reliable estimate, median household income runs from $68,133 (Tract 9702) to $76,827 (Tract 9701).
| Tract 970116041970100 | 7,869±463 | $76,827 |
|---|---|---|
| Tract 970216041970200 | 7,187±463 | $68,133 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Franklin County compare with Idaho's other counties?
| Measure | Rank |
|---|---|
| Population | 22nd of 44 |
| Growth 2020-2025 | 11th of 44 |
| Residents per square mile | 18th of 44 |
| Median household income | 15th of 44 |
| Median home value | 15th of 44 |
| Median gross rent | 24th of 44 |
| Poverty rate | 40th of 43 |
| Bachelor's degree or higher | 19th of 44 |
| Median age | 38th of 44 |
Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Franklin County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.