County · Idaho
Nez Perce County, Idaho
Nez Perce County, Idaho. Nez Perce County had 42,905 residents in 2025 by the Census Bureau's estimate, up 1.9% since 2020, slower than Idaho (+10.4%). It holds 5 places (4 cities, villages and boroughs and 1 census-designated) and 10 census tracts. GEOID 16069.
Nez Perce County is one of the 2 counties of the Lewiston, ID-WA metropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
42,905
Census Bureau estimate (no margin published)
2020 Census count: 42,090 · ACS 2020-2024: 42,697
Median household income
$72,599
±$5,036 (90% margin)
Idaho: $77,800
Median home value
$334,700
±$10,110 (90% margin)
Idaho: $418,600
Median gross rent
$1,015
±$63 (90% margin)
Idaho: $1,238
How many people live in Nez Perce County, and is it growing?
The 2020 Census counted 42,090 residents in Nez Perce County. The Census Bureau estimates 42,905 for July 1, 2025, up 1.9% since 2020, slower than Idaho (+10.4%). The 2020-2024 American Community Survey puts the population at 42,697 over 848 square miles of land.
| Measure | Nez Perce County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| Total population | 42,697 | 1,934,262 | +2,480 |
| Households | 17,270±241 | 713,005 | +886 |
| Average household size | 2.40±0.03 | 2.64 | no clear change |
| Housing units | 18,578±36 | 795,014 | +749 |
Nez Perce County's population since 2000
From 37,410 in 2000 to 42,905 in 2025: up 14.7%. 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 Nez Perce County?
Nez Perce County holds 5 places: 4 cities, villages and boroughs (incorporated places) and 1 census-designated place. The largest is Lewiston with 34,717 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 Nez Perce County?
The median resident of Nez Perce County is 41.2 years old; 21.2% are under 18 and 21.1% are 65 or older. The largest group is non-Hispanic white residents at 85.5%, then Hispanic or Latino residents (of any race) at 4.4%. 1.7% of residents were born outside the United States.
| Measure | Nez Perce County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| Median age | 41.2±0.4 | 37.3 | no clear change |
| Under 18 years | 21.2%±0.2 pts | 24.1% | – |
| 65 years and over | 21.1%±0.1 pts | 17.0% | – |
| Hispanic or Latino (any race) | 4.4% | 13.6% | +0.5 pts |
| White alone, not Hispanic | 85.5%±0.5 pts | 78.6% | −1.5 pts |
| Black or African American alone, not Hispanic | 0.2%±0.1 pts | 0.7% | no clear change |
| Asian alone, not Hispanic | 0.9%±0.3 pts | 1.3% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 4.2%±0.3 pts | 0.7% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.2%±0.2 pts | 0.1% | – |
| Two or more races, not Hispanic | 4.2%±0.4 pts | 4.2% | – |
| Some other race alone, not Hispanic | 0.5%±0.4 pts | 0.6% | – |
| Born outside the United States | 1.7%±0.4 pts | 5.9% | no clear change |
| Speak a language other than English at home (age 5+) | 2.5%±0.6 pts | 11.0% | – |
| Civilian veterans (age 18+) | 8.4%±1.1 pts | 8.0% | – |
| With a disability | 18.1%±1.6 pts | 14.1% | – |
| No health insurance coverage | 7.7%±1.5 pts | 9.1% | −2.4 pts |
| High school graduate or higher (age 25+) | 93.8%±1.2 pts | 91.9% | – |
| Bachelor's degree or higher (age 25+) | 27.1%±2.4 pts | 31.8% | +4.2 pts |
| Graduate or professional degree (age 25+) | 8.6%±1.5 pts | 10.5% | – |
| Moved from another state in the past year | 3.7%±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 Nez Perce County earn?
Half of Nez Perce County's 17,270 households earn less than $72,599 a year (±$5,036), against $77,800 in Idaho. In 2015-2019 it was $71,512 in 2024 dollars; the margins of error cannot tell the two periods apart. 12.2% of residents live below the poverty line.
| Measure | Nez Perce County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $72,599±$5,036 | $77,800 | no clear change |
| Mean household income | $91,379±$5,262 | $102,747 | – |
| Per capita income | $38,311±$1,856 | $38,952 | no clear change |
| People below the poverty line | 12.2%±2.1 pts | 10.6% | no clear change |
| Children under 18 below the poverty line | 15.5%±4.6 pts | 12.4% | no clear change |
| Households receiving SNAP | 7.3%±1.9 pts | 7.6% | – |
| Households with a broadband subscription | 89.4%±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 Nez Perce County?
Owners occupy 70.4% of Nez Perce County's occupied homes and renters 29.6%. The median owner-occupied home is valued at $334,700 by its owner (±$10,110). The median renter pays $1,015 a month including utilities, and 36.6% of renters pay 35% or more of their income on rent.
| Measure | Nez Perce County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $334,700±$10,110 | $418,600 | +$99,022 |
| Median gross rent | $1,015±$63 | $1,238 | +$120 |
| Renters paying 35% or more of income on rent | 36.6%±6.0 pts | 36.9% | no clear change |
| Median monthly owner costs, with a mortgage | $1,664±$45 | $1,687 | – |
| Owner-occupied homes | 70.4%±2.2 pts | 72.1% | no clear change |
| Housing units | 18,578±36 | 795,014 | +749 |
| Homeowner vacancy rate | 0.4%±0.4 pts | 0.7% | – |
| Rental vacancy rate | 3.3%±1.9 pts | 3.9% | – |
| Single-family detached homes | 68.3%±2.1 pts | 73.8% | – |
| Mobile homes | 10.4%±1.8 pts | 6.9% | – |
| Built 2020 or later | 1.0%±0.4 pts | 3.9% | – |
| Built 1939 or earlier | 15.1%±2.2 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 Nez Perce County building?
Builders took permits for 272 new housing units across Nez Perce County in 2025 (122 single-family), 6.3 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 Nez Perce County get to work?
80.1% of Nez Perce County's workers drive alone and 9.3% work from home. The average trip to work takes 16.7 minutes. The unemployment rate in 2020-2024 averaged 2.6%.
| Measure | Nez Perce County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 59.1%±2.0 pts | 63.0% | – |
| Unemployment rate | 2.6%±0.8 pts | 3.7% | no clear change |
| Drove alone to work | 80.1%±2.4 pts | 72.7% | – |
| Carpooled | 7.0%±1.4 pts | 8.9% | – |
| Public transportation | 0.3%±0.3 pts | 0.5% | – |
| Walked | 2.1%±0.7 pts | 2.6% | – |
| Worked from home | 9.3%±1.8 pts | 13.3% | +3.9 pts |
| Mean travel time to work | 16.7 min±1.2 | 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 Nez Perce County's census tracts?
Nez Perce County is divided into 10 census tracts. Among those with a reliable estimate, median household income runs from $51,616 (Tract 9604) to $95,809 (Tract 9610).
| Tract 940016069940000 | 4,610±367 | $64,653 |
|---|---|---|
| Tract 960216069960200 | 493±184 | $92,917 |
| Tract 960316069960300 | 5,356±694 | $79,215 |
| Tract 960416069960400 | 3,629±529 | $51,616 |
| Tract 960516069960500 | 4,451±634 | $75,417 |
| Tract 960616069960600 | 5,412±707 | $62,750 |
| Tract 960716069960700 | 5,461±501 | $61,360 |
| Tract 960816069960800 | 3,914±482 | $79,115 |
| Tract 960916069960900 | 3,410±409 | $72,844 |
| Tract 961016069961000 | 5,961±599 | $95,809 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Nez Perce County compare with Idaho's other counties?
| Measure | Rank |
|---|---|
| Population | 10th of 44 |
| Growth 2020-2025 | 43rd of 44 |
| Residents per square mile | 8th of 44 |
| Median household income | 14th of 44 |
| Median home value | 21st of 44 |
| Median gross rent | 14th of 44 |
| Poverty rate | 18th of 43 |
| Bachelor's degree or higher | 15th of 44 |
| Median age | 17th 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 Nez Perce 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.