County · Idaho
Butte County, Idaho
Butte County, Idaho. Butte County had 2,783 residents in 2025 by the Census Bureau's estimate, up 8.2% since 2020, slower than Idaho (+10.4%). It holds 3 places (3 cities, villages and boroughs) and 1 census tract. GEOID 16023.
Butte County is one of the 3 counties of the Idaho Falls, ID metropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
2,783
Census Bureau estimate (no margin published)
2020 Census count: 2,574 · ACS 2020-2024: 2,684
Median household income
$53,015
±$9,674 (90% margin)
Idaho: $77,800
Median home value
$217,600
±$17,421 (90% margin)
Idaho: $418,600
Median gross rent
$608
±$147 (90% margin)
Idaho: $1,238
How many people live in Butte County, and is it growing?
The 2020 Census counted 2,574 residents in Butte County. The Census Bureau estimates 2,783 for July 1, 2025, up 8.2% since 2020, slower than Idaho (+10.4%). The 2020-2024 American Community Survey puts the population at 2,684 over 2,236 square miles of land.
| Measure | Butte County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| Total population | 2,684 | 1,934,262 | +103 |
| Households | 1,073±119 | 713,005 | no clear change |
| Average household size | 2.48±0.27 | 2.64 | no clear change |
| Housing units | 1,336±108 | 795,014 | no clear change |
Butte County's population since 2000
From 2,899 in 2000 to 2,783 in 2025: down 4.0%. 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 Butte County?
Butte County holds 3 places: 3 cities, villages and boroughs (incorporated places). The largest is Arco with 918 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Arco | 879 | $37,644 |
|---|---|---|
| MooreGEOID 1654100 | 162 | $70,625 |
| Butte CityGEOID 1611710 | 78 | not published |
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 Butte County?
The median resident of Butte County is 41.3 years old; 24.6% are under 18 and 20.3% are 65 or older. The largest group is non-Hispanic white residents at 88.7%, then Hispanic or Latino residents (of any race) at 6.4%. 2.9% of residents were born outside the United States.
| Measure | Butte County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| Median age | 41.3±4.5 | 37.3 | no clear change |
| Under 18 years | 24.6%±4.1 pts | 24.1% | – |
| 65 years and over | 20.3%±4.3 pts | 17.0% | – |
| Hispanic or Latino (any race) | 6.4%±2.7 pts | 13.6% | no clear change |
| White alone, not Hispanic | 88.7%±3.3 pts | 78.6% | −6.0 pts |
| Black or African American alone, not Hispanic | 0.0%±1.3 pts | 0.7% | – |
| Asian alone, not Hispanic | 0.0%±1.3 pts | 1.3% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±0.1 pts | 0.7% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.3%±0.4 pts | 0.1% | – |
| Two or more races, not Hispanic | 4.5%±2.3 pts | 4.2% | – |
| Some other race alone, not Hispanic | 0.0%±1.3 pts | 0.6% | – |
| Born outside the United States | 2.9%±1.8 pts | 5.9% | – |
| Speak a language other than English at home (age 5+) | 6.2%±2.9 pts | 11.0% | – |
| Civilian veterans (age 18+) | 10.7%±3.4 pts | 8.0% | – |
| With a disability | 18.9%±4.5 pts | 14.1% | – |
| No health insurance coverage | 7.8%±2.7 pts | 9.1% | −7.7 pts |
| High school graduate or higher (age 25+) | 89.1%±4.3 pts | 91.9% | – |
| Bachelor's degree or higher (age 25+) | 17.5%±3.4 pts | 31.8% | no clear change |
| Graduate or professional degree (age 25+) | 5.5%±2.4 pts | 10.5% | – |
| Moved from another state in the past year | 2.7%±1.8 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 Butte County earn?
Half of Butte County's 1,073 households earn less than $53,015 a year (±$9,674), against $77,800 in Idaho. In 2015-2019 it was $51,852 in 2024 dollars; the margins of error cannot tell the two periods apart. 19.3% of residents live below the poverty line.
| Measure | Butte County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $53,015±$9,674 | $77,800 | no clear change |
| Mean household income | $68,255±$7,537 | $102,747 | – |
| Per capita income | $28,232±$3,576 | $38,952 | −$9,051 |
| People below the poverty line | 19.3%±6.3 pts | 10.6% | no clear change |
| Children under 18 below the poverty line | 28.0%±14.5 pts | 12.4% | no clear change |
| Households receiving SNAP | 10.9%±4.4 pts | 7.6% | – |
| Households with a broadband subscription | 89.2%±4.6 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 Butte County?
Owners occupy 77.5% of Butte County's occupied homes and renters 22.5%. The median owner-occupied home is valued at $217,600 by its owner (±$17,421). The median renter pays $608 a month including utilities, and 30.8% of renters pay 35% or more of their income on rent.
| Measure | Butte County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $217,600±$17,421 | $418,600 | +$58,964 |
| Median gross rent | $608±$147 | $1,238 | −$199 |
| Renters paying 35% or more of income on rent | 30.8%±17.7 pts | 36.9% | no clear change |
| Median monthly owner costs, with a mortgage | $1,349±$154 | $1,687 | – |
| Owner-occupied homes | 77.5%±8.0 pts | 72.1% | no clear change |
| Housing units | 1,336±108 | 795,014 | no clear change |
| Homeowner vacancy rate | 0.0%±4.0 pts | 0.7% | – |
| Rental vacancy rate | 0.0%±13.0 pts | 3.9% | – |
| Single-family detached homes | 73.5%±5.0 pts | 73.8% | – |
| Mobile homes | 17.1%±5.2 pts | 6.9% | – |
| Built 2020 or later | 1.6%±1.7 pts | 3.9% | – |
| Built 1939 or earlier | 17.8%±5.6 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 Butte County building?
Builders took permits for 9 new housing units across Butte County in 2025 (9 single-family), 3.2 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 Butte County get to work?
65.9% of Butte County's workers drive alone and 16.0% work from home. The average trip to work takes 22.0 minutes.
| Measure | Butte County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 55.6%±6.1 pts | 63.0% | – |
| Unemployment rate | 4.4%±3.1 pts | 3.7% | – |
| Drove alone to work | 65.9%±7.3 pts | 72.7% | – |
| Carpooled | 9.7%±4.0 pts | 8.9% | – |
| Public transportation | 0.4%±0.7 pts | 0.5% | – |
| Walked | 6.2%±3.2 pts | 2.6% | – |
| Worked from home | 16.0%±6.8 pts | 13.3% | – |
| Mean travel time to work | 22.0 min±4.0 | 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 Butte County's census tracts?
Butte County is a single census tract.
| Tract 970116023970100 | 2,684 | $53,015 |
|---|
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Butte County compare with Idaho's other counties?
| Measure | Rank |
|---|---|
| Population | 42nd of 44 |
| Growth 2020-2025 | 23rd of 44 |
| Residents per square mile | 41st of 44 |
| Median household income | 43rd of 44 |
| Median home value | 42nd of 44 |
| Median gross rent | 44th of 44 |
| Poverty rate | 2nd of 43 |
| Bachelor's degree or higher | 34th of 44 |
| Median age | 16th 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 Butte 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.