• county
  • FIPS 16069
  • Largest town: Lewiston

Nez Perce County, Idaho

Nez Perce County had 42,847 residents in the Census Vintage 2024 estimate, on 848.3 square miles of land. It ranks 10th of 44 in Idaho by population and 33rd by land area.

Population
42,847
#10 of 44 in Idaho · #1,136 in US
Area
848.3 sq mi
#33 of 44 in Idaho · #984 in US
Density
51 / sq mi
#8 of 44 in Idaho · #1,458 in US
Median household income
$70,340
#14 of 44 in Idaho · #973 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Nez Perce County within Idaho. Pin: Boise.

Measure from here

Tools and pages that start from Nez Perce County

Nez Perce County population, land area and income

Nez Perce County had 42,847 residents in the Census Vintage 2024 estimate, on 848.3 square miles of land. It ranks 10th of 44 in Idaho by population and 33rd by land area. That works out to 50.5 people per square mile, below the US average of 96.3, and above the national county median.

The median county-equivalent in Idaho has 15,019 residents, so Nez Perce County is 2.9 times that size.

Its SAIPE 2023 median household income of $70,340 is above the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

42,847

3144th1st

1136th of 3,144 (US)

Land area

848 sq mi

3144th1st

984th of 3,144 (US)

Density

50.5 / sq mi

3144th1st

1458th of 3,144 (US)

Median household income

$70,340

3143rd1st

973rd of 3,143 (US)

Rank within Idaho (44)

Population

42,847

44th1st

10th of 44 (ID)

Land area

848 sq mi

44th1st

33rd of 44 (ID)

Density

50.5 / sq mi

44th1st

8th of 44 (ID)

Median household income

$70,340

44th1st

14th of 44 (ID)

How Nez Perce County's population changed since 2020

Nez Perce County gained 699 residents between the July 2020 and July 2024 estimates, a rise of 1.7%. That ranks 43rd of 44 in Idaho for growth. The median Idaho county changed by +7.2%, and the state as a whole by +8.2%.

Since the April 2020 estimates base, Nez Perce County recorded 1,696 births and 2,588 deaths, a natural change of -892. Net international migration added +154 and net domestic migration, people moving to or from other US counties, came to +1,492. The largest single component was domestic migration, which added 1,492 people.

42.1k202042.5k202143.0k202243.0k202342.8k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
1,696
Deaths
2,588
Net international migration
+154
Net domestic migration
+1,492
Change, July 2023 to July 2024
-131

Where Nez Perce County is

The Census internal point of Nez Perce County is at 46.333800, -116.760900. It sits in UTM zone 11N. The map shades Idaho's 44 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Nez Perce County outlined. Dots are towns of 1,000+ people with residents in it.

Madison County: +5.0%Idaho County: +8.0%Benewah County: +9.9%Gooding County: +3.4%Lincoln County: +8.2%Minidoka County: +4.7%Custer County: +7.7%Boundary County: +15.6%Lemhi County: +5.5%Twin Falls County: +6.8%Franklin County: +9.5%Oneida County: +9.0%Gem County: +13.4%Shoshone County: +6.6%Fremont County: +7.3%Clearwater County: +4.6%Kootenai County: +9.0%Cassia County: +4.9%Blaine County: +3.8%Clark County: +0.1%Jerome County: +7.4%Bonner County: +13.8%Elmore County: +3.7%Caribou County: +3.2%Bonneville County: +7.1%Jefferson County: +12.1%Power County: +6.3%Lewis County: +5.8%Nez Perce County: +1.7%Ada County: +7.5%Adams County: +12.9%Valley County: +7.9%Bingham County: +5.8%Bannock County: +4.3%Owyhee County: +6.2%Washington County: +9.3%Latah County: +6.4%Teton County: +10.2%Camas County: +15.0%Boise County: +12.0%Bear Lake County: +6.5%Butte County: +5.9%Canyon County: +14.5%Payette County: +8.1%
Change 2020 to 2024
  1. < +4.7%
  2. < +6.4%
  3. < +7.7%
  4. < +9.9%
  5. ≥ +9.9%
no data

Orange pin: Nez Perce County internal point. Dark pin: Boise.

Internal point

Decimal
46.333800, -116.760900
DMS
46°20'1.68"N 116°45'39.24"W
UTM
11N 518402.4E 5131163.8N
Geohash
c2hzx4c3c
Plus code
85R586MQ+GJ

Towns in Nez Perce County

2 incorporated places of 1,000+ people have residents in Nez Perce County, 35,942 people together, or 84% of the county. Each figure counts only the part of the town inside Nez Perce County; towns marked "part" extend into another county. The largest is Lewiston with 34,693.

  1. 01Lewiston34,693
  2. 02Lapwai1,249
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Nez Perce County

The Census 2024 county adjacency file lists 7 neighbors for Nez Perce County, including 3 across a state line. The most populous is Whitman County, WA, with 48,399 residents. Distances run between Census internal points in a straight line.

Distance to Boise and the nearest big city

Boise is 189.5 miles S of Nez Perce County's internal point in a straight line. The nearest place of 100,000 or more is Spokane Valley, WA (population 108,267), 94.5 miles away. The nearest place of 10,000 or more is Lewiston, ID (population 34,693), 11.8 miles away.

Nez Perce County FIPS code

The FIPS code of Nez Perce County is 16069: state code 16 for Idaho plus county code 069. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $70,340.

Questions people ask

What is the population of Nez Perce County, Idaho?

The Census Vintage 2024 estimate for July 1, 2024 is 42,847. That is up 699 people (1.7%) from the July 2020 estimate of 42,148.

What is the FIPS code of Nez Perce County?

16069. The first two digits (16) are Idaho; the last three (069) identify the county.

What is the largest town in Nez Perce County?

Lewiston, with 34,693 residents inside Nez Perce County in 2024.

Which counties border Nez Perce County?

7 county-equivalents border it in the Census 2024 adjacency file: Whitman County, WA; Latah County, ID; Asotin County, WA; Idaho County, ID; Clearwater County, ID; Wallowa County, OR; Lewis County, ID.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.