County · Idaho
Clark County, Idaho
Clark County, Idaho. Clark County had 783 residents in 2025 by the Census Bureau's estimate, down 0.6% since 2020, while Idaho grew 10.4%. It holds 2 places (2 cities, villages and boroughs) and 1 census tract. GEOID 16033.
Residents, July 2025 estimate
783
Census Bureau estimate (no margin published)
2020 Census count: 790 · ACS 2020-2024: 849 ±148
Median household income
$55,208
±$16,773 (90% margin)
Idaho: $77,800
Median home value
$216,900
±$32,972 (90% margin)
Idaho: $418,600
Median gross rent
$773
±$69 (90% margin)
Idaho: $1,238
How many people live in Clark County, and is it growing?
The 2020 Census counted 790 residents in Clark County. The Census Bureau estimates 783 for July 1, 2025, down 0.6% since 2020, while Idaho grew 10.4%. The 2020-2024 American Community Survey puts the population at 849 over 1,763 square miles of land.
| Measure | Clark County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| Total population | 849±148 | 1,934,262 | no clear change |
| Households | 279±58 | 713,005 | no clear change |
| Average household size | 2.93±0.66 | 2.64 | no clear change |
| Housing units | 456±59 | 795,014 | −106 |
Clark County's population since 2000
From 1,022 in 2000 to 783 in 2025: down 23.4%. 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 Clark County?
Clark County holds 2 places: 2 cities, villages and boroughs (incorporated places). The largest is Dubois with 516 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Dubois | 511 | $48,611 |
|---|---|---|
| SpencerGEOID 1675970 | 31 | $74,219 |
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 Clark County?
The median resident of Clark County is 31.1 years old; 28.5% are under 18 and 12.1% are 65 or older. The largest group is non-Hispanic white residents at 63.1%, then Hispanic or Latino residents (of any race) at 28.7%. 19.3% of residents were born outside the United States.
| Measure | Clark County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| Median age | 31.1±7.6 | 37.3 | no clear change |
| Under 18 years | 28.5%±8.9 pts | 24.1% | – |
| 65 years and over | 12.1%±5.4 pts | 17.0% | – |
| Hispanic or Latino (any race) | 28.7%±8.9 pts | 13.6% | −19.8 pts |
| White alone, not Hispanic | 63.1%±9.6 pts | 78.6% | +17.0 pts |
| Black or African American alone, not Hispanic | 0.0%±4.0 pts | 0.7% | – |
| Asian alone, not Hispanic | 0.0%±4.0 pts | 1.3% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.1%±0.4 pts | 0.7% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±4.0 pts | 0.1% | – |
| Two or more races, not Hispanic | 1.1%±1.2 pts | 4.2% | – |
| Some other race alone, not Hispanic | 6.9%±6.8 pts | 0.6% | – |
| Born outside the United States | 19.3%±6.4 pts | 5.9% | −13.8 pts |
| Speak a language other than English at home (age 5+) | 27.7%±8.8 pts | 11.0% | – |
| Civilian veterans (age 18+) | 1.3%±1.2 pts | 8.0% | – |
| With a disability | 13.6%±5.0 pts | 14.1% | – |
| No health insurance coverage | 17.1%±7.7 pts | 9.1% | −13.3 pts |
| High school graduate or higher (age 25+) | 74.4%±11.2 pts | 91.9% | – |
| Bachelor's degree or higher (age 25+) | 20.5%±6.7 pts | 31.8% | no clear change |
| Graduate or professional degree (age 25+) | 4.6%±3.2 pts | 10.5% | – |
| Moved from another state in the past year | 3.1%±2.7 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 Clark County earn?
Half of Clark County's 279 households earn less than $55,208 a year (±$16,773), against $77,800 in Idaho. In 2015-2019 it was $56,801 in 2024 dollars; the margins of error cannot tell the two periods apart. 11.7% of residents live below the poverty line.
| Measure | Clark County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $55,208±$16,773 | $77,800 | no clear change |
| Mean household income | $62,016±$10,234 | $102,747 | – |
| Per capita income | $22,561±$3,603 | $38,952 | no clear change |
| People below the poverty line | 11.7%±6.0 pts | 10.6% | – |
| Children under 18 below the poverty line | 13.6%±12.7 pts | 12.4% | – |
| Households receiving SNAP | 4.3%±4.3 pts | 7.6% | – |
| Households with a broadband subscription | 92.8%±5.0 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 Clark County?
Owners occupy 61.3% of Clark County's occupied homes and renters 38.7%. The median owner-occupied home is valued at $216,900 by its owner (±$32,972). The median renter pays $773 a month including utilities.
| Measure | Clark County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $216,900±$32,972 | $418,600 | +$96,169 |
| Median gross rent | $773±$69 | $1,238 | no clear change |
| Renters paying 35% or more of income on rent | 15.4%±14.8 pts | 36.9% | – |
| Median monthly owner costs, with a mortgage | $1,544±$438 | $1,687 | – |
| Owner-occupied homes | 61.3%±13.7 pts | 72.1% | no clear change |
| Housing units | 456±59 | 795,014 | −106 |
| Homeowner vacancy rate | 0.0%±18.4 pts | 0.7% | – |
| Rental vacancy rate | 0.0%±26.3 pts | 3.9% | – |
| Single-family detached homes | 78.3%±7.4 pts | 73.8% | – |
| Mobile homes | 13.2%±7.0 pts | 6.9% | – |
| Built 2020 or later | 0.0%±7.4 pts | 3.9% | – |
| Built 1939 or earlier | 18.9%±6.0 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 Clark County building?
Builders took permits for 2 new housing units across Clark County in 2025 (2 single-family), 2.6 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 Clark County get to work?
55.0% of Clark County's workers drive alone and 9.4% work from home. The average trip to work takes 24.0 minutes.
| Measure | Clark County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 61.1%±8.9 pts | 63.0% | – |
| Unemployment rate | 2.1%±2.7 pts | 3.7% | – |
| Drove alone to work | 55.0%±10.1 pts | 72.7% | – |
| Carpooled | 29.4%±9.6 pts | 8.9% | – |
| Public transportation | 0.0%±9.0 pts | 0.5% | – |
| Walked | 5.1%±5.1 pts | 2.6% | – |
| Worked from home | 9.4%±5.1 pts | 13.3% | – |
| Mean travel time to work | 24.0 min±4.2 | 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 Clark County's census tracts?
Clark County is a single census tract.
| Tract 950116033950100 | 849±148 | $55,208 |
|---|
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Clark County compare with Idaho's other counties?
| Measure | Rank |
|---|---|
| Population | 44th of 44 |
| Growth 2020-2025 | 44th of 44 |
| Residents per square mile | 44th of 44 |
| Median household income | 40th of 44 |
| Median home value | 43rd of 44 |
| Median gross rent | 38th of 44 |
| Poverty rate | 21st of 43 |
| Bachelor's degree or higher | 32nd of 44 |
| Median age | 42nd 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 Clark 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.