County · Idaho
Jerome County, Idaho
Jerome County, Idaho. Jerome County had 26,362 residents in 2025 by the Census Bureau's estimate, up 8.7% since 2020, slower than Idaho (+10.4%). It holds 3 places (3 cities, villages and boroughs) and 6 census tracts. GEOID 16053.
Jerome County is one of the 2 counties of the Twin Falls, ID metropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
26,362
Census Bureau estimate (no margin published)
2020 Census count: 24,237 · ACS 2020-2024: 25,173
Median household income
$71,724
±$3,145 (90% margin)
Idaho: $77,800
Median home value
$271,800
±$16,969 (90% margin)
Idaho: $418,600
Median gross rent
$966
±$81 (90% margin)
Idaho: $1,238
How many people live in Jerome County, and is it growing?
The 2020 Census counted 24,237 residents in Jerome County. The Census Bureau estimates 26,362 for July 1, 2025, up 8.7% since 2020, slower than Idaho (+10.4%). The 2020-2024 American Community Survey puts the population at 25,173 over 598 square miles of land.
| Measure | Jerome County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| Total population | 25,173 | 1,934,262 | +1,443 |
| Households | 8,277±231 | 713,005 | no clear change |
| Average household size | 3.02±0.08 | 2.64 | no clear change |
| Housing units | 8,810±28 | 795,014 | +279 |
Jerome County's population since 2000
From 18,342 in 2000 to 26,362 in 2025: up 43.7%. 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 Jerome County?
Jerome County holds 3 places: 3 cities, villages and boroughs (incorporated places). The largest is Jerome with 13,731 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 Jerome County?
The median resident of Jerome County is 34.0 years old; 29.6% are under 18 and 13.4% are 65 or older. The largest group is non-Hispanic white residents at 56.8%, then Hispanic or Latino residents (of any race) at 39.2%. 17.9% of residents were born outside the United States.
| Measure | Jerome County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| Median age | 34.0±0.4 | 37.3 | +1.3 |
| Under 18 years | 29.6% | 24.1% | – |
| 65 years and over | 13.4%±0.3 pts | 17.0% | – |
| Hispanic or Latino (any race) | 39.2% | 13.6% | +3.1 pts |
| White alone, not Hispanic | 56.8%±0.6 pts | 78.6% | −4.7 pts |
| Black or African American alone, not Hispanic | 0.1%±0.1 pts | 0.7% | – |
| Asian alone, not Hispanic | 0.0%±0.1 pts | 1.3% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.1%±0.1 pts | 0.7% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.1 pts | 0.1% | – |
| Two or more races, not Hispanic | 3.6%±0.7 pts | 4.2% | – |
| Some other race alone, not Hispanic | 0.1%±0.2 pts | 0.6% | – |
| Born outside the United States | 17.9%±1.9 pts | 5.9% | no clear change |
| Speak a language other than English at home (age 5+) | 34.7%±1.8 pts | 11.0% | – |
| Civilian veterans (age 18+) | 6.2%±1.2 pts | 8.0% | – |
| With a disability | 14.2%±1.8 pts | 14.1% | – |
| No health insurance coverage | 14.8%±2.3 pts | 9.1% | −3.8 pts |
| High school graduate or higher (age 25+) | 73.5%±2.7 pts | 91.9% | – |
| Bachelor's degree or higher (age 25+) | 14.0%±2.2 pts | 31.8% | no clear change |
| Graduate or professional degree (age 25+) | 3.8%±1.0 pts | 10.5% | – |
| Moved from another state in the past year | 2.0%±0.9 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 Jerome County earn?
Half of Jerome County's 8,277 households earn less than $71,724 a year (±$3,145), against $77,800 in Idaho. In 2015-2019 the median was $65,130 in 2024 dollars, so it rose by $6,594 after inflation. 12.6% of residents live below the poverty line.
| Measure | Jerome County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $71,724±$3,145 | $77,800 | +$6,594 |
| Mean household income | $89,909±$6,169 | $102,747 | – |
| Per capita income | $29,353±$1,921 | $38,952 | +$2,941 |
| People below the poverty line | 12.6%±2.7 pts | 10.6% | −6.4 pts |
| Children under 18 below the poverty line | 14.3%±4.5 pts | 12.4% | −15.8 pts |
| Households receiving SNAP | 7.6%±2.2 pts | 7.6% | – |
| Households with a broadband subscription | 89.4%±2.2 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 Jerome County?
Owners occupy 75.2% of Jerome County's occupied homes and renters 24.8%. The median owner-occupied home is valued at $271,800 by its owner (±$16,969). The median renter pays $966 a month including utilities, and 27.0% of renters pay 35% or more of their income on rent.
| Measure | Jerome County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $271,800±$16,969 | $418,600 | +$69,228 |
| Median gross rent | $966±$81 | $1,238 | no clear change |
| Renters paying 35% or more of income on rent | 27.0%±8.8 pts | 36.9% | no clear change |
| Median monthly owner costs, with a mortgage | $1,363±$57 | $1,687 | – |
| Owner-occupied homes | 75.2%±3.0 pts | 72.1% | +10.3 pts |
| Housing units | 8,810±28 | 795,014 | +279 |
| Homeowner vacancy rate | 0.0%±0.6 pts | 0.7% | – |
| Rental vacancy rate | 1.1%±1.5 pts | 3.9% | – |
| Single-family detached homes | 82.5%±3.0 pts | 73.8% | – |
| Mobile homes | 9.5%±2.3 pts | 6.9% | – |
| Built 2020 or later | 2.7%±1.3 pts | 3.9% | – |
| Built 1939 or earlier | 8.2%±1.8 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 Jerome County building?
Builders took permits for 143 new housing units across Jerome County in 2025 (143 single-family), 5.4 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 Jerome County get to work?
80.6% of Jerome County's workers drive alone and 5.8% work from home. The average trip to work takes 21.7 minutes. The unemployment rate in 2020-2024 averaged 3.6%.
| Measure | Jerome County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 64.9%±2.2 pts | 63.0% | – |
| Unemployment rate | 3.6%±1.1 pts | 3.7% | no clear change |
| Drove alone to work | 80.6%±2.9 pts | 72.7% | – |
| Carpooled | 11.3%±2.2 pts | 8.9% | – |
| Public transportation | 0.1%±0.2 pts | 0.5% | – |
| Walked | 0.8%±0.5 pts | 2.6% | – |
| Worked from home | 5.8%±2.0 pts | 13.3% | no clear change |
| Mean travel time to work | 21.7 min±2.0 | 21.6 min | +3.9 min |
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 Jerome County's census tracts?
Jerome County is divided into 6 census tracts. Among those with a reliable estimate, median household income runs from $61,301 (Tract 9702) to $107,969 (Tract 9705.01).
| Tract 970116053970100 | 3,418±329 | $66,894 |
|---|---|---|
| Tract 970216053970200 | 4,405±708 | $61,301 |
| Tract 970316053970300 | 6,120±500 | $62,047 |
| Tract 970416053970400 | 3,354±519 | $76,068 |
| Tract 9705.0116053970501 | 4,812±499 | $107,969 |
| Tract 9705.0216053970502 | 3,064±491 | $77,723 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Jerome County compare with Idaho's other counties?
| Measure | Rank |
|---|---|
| Population | 16th of 44 |
| Growth 2020-2025 | 20th of 44 |
| Residents per square mile | 10th of 44 |
| Median household income | 16th of 44 |
| Median home value | 34th of 44 |
| Median gross rent | 18th of 44 |
| Poverty rate | 15th of 43 |
| Bachelor's degree or higher | 41st of 44 |
| Median age | 36th 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 Jerome 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.