What is the population of Nez Perce County?

The population of Nez Perce County, ID is 40,408.

Where is Nez Perce County located?

Nez Perce County, ID is located at latitude 46.3267600 and longitude -116.7502400. It is in United States.

What is the area of Nez Perce County?

The area of Nez Perce County, ID is 2218 km².

What is the elevation of Nez Perce County?

Nez Perce County, ID has an elevation of 736 meters (2415 feet) above sea level.

What time zone is Nez Perce County in?

Nez Perce County, ID is in the America/Los_Angeles time zone.

How has the population of Nez Perce County changed?

The population of Nez Perce County, ID has increased from 39,265 (2010) to 40,408 (2019), a change of 2.9%.

Nez Perce County, Idaho

Nez Perce County: county in Idaho, United States

About

Nez Perce County is a county located in the U.S. state of Idaho. As of the 2010 census, the population was 39,265 and a population density of 18 people per km². After 9 years in 2019 county had an estimated population of 40,408 inhabitants. Its county seat is Lewiston. The county was created 162 years ago in 1864.

Nez Perce County locator map — Location of Nez Perce County on Idaho map.

County Snapshot

Nez Perce County at a glance

Nez Perce County currently has 4 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.

Browse county places

Mapped populated places

These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.

Idaho counties

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Largest city

Lewiston

Population 32,788

Quick Facts about Nez Perce County

Population	40,408 (2019)
Country	United States of America
State	Idaho (United States)
Different from	Nezperce
Area	2218 km²
Water as percent of area	0.85%
Land as percent of area	99.15%
Latitude & Longitude	46.3268,-116.7502
Named for	Nez Perce people
Altitude	1,594 feet / 486 meters
Capital	Lewiston
Establishment	February 04, 1864
Time Zone	America/Los_Angeles
Local time	15:26:22 (17th April 2026)
Density	18 Pop. per km² as of 2019
Population growth	2.83% (2010-2019)

Lewiston ID St. Stanislaus image

Geography

Nez Perce County is located at 46°19'36"N 116°45'1"W (46.3267600, -116.7502400). It has 7 neighbors: Clearwater County, Idaho County, Latah County, Lewis County, Wallowa County, Asotin County and Whitman County.

Nez Perce County map

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The largest city of Nez Perce County is Lewiston with a population of 32,788. Other cities include, Lewiston Orchards population 31,422, Lapwai population 1,137 and Culdesac population 383. See all Nez Perce County cities & populated places.

Nez Perce County Populated Places

Cities, towns, neighborhoods & other populated places in Nez Perce County.

City Name	Population	Title
Lewiston	32,788	City in Nez Perce County, Idaho, USA
Lewiston Orchards	31,422	City in Nez Perce County, Idaho, United States of America
Lapwai	1,137	City in Nez Perce County, Idaho, United States
Culdesac	383	City in Nez Perce County, Idaho, United States

Official website of Nez Perce County

Official Website

Nez Perce County has 7 neighbours.

Clearwater County county in Idaho, United States
Idaho County county in Idaho, United States
Latah County county in Idaho, United States
Lewis County county in Idaho, United States
Wallowa County county in Oregon, United States
Asotin County county in the state of Washington, United States
Whitman County county in the state of Washington, United States

Lewiston

Demographics

The population of Nez Perce County increased by 2.83% in 9 years.

Year	Population	% Change	Method
2010	39,265	-	census
2011	39,438	0.44%	estimation process
2012	39,504	0.17%	estimation process
2013	39,798	0.74%	estimation process
2014	39,841	0.11%	estimation process
2015	39,995	0.39%	estimation process
2016	40,136	0.35%	estimation process
2017	40,289	0.38%	estimation process
2018	40,256	-0.08%	estimation process
2019	40,408	0.38%	estimation process

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Idaho Other Counties (more counties)

County Name	Population	Title
Ada County	481,587	County in Idaho, United States
Canyon County	229,849	County in Idaho, United States
Boise	228,959	The capital of Idaho.
Kootenai County	165,697	County in Idaho, United States
Bonneville County	119,062	County in Idaho, United States
Meridian	114,161	The most populous city in Ada County, Idaho.
Nampa	99,277	The most populous city in Canyon County, Idaho.
Bannock County	87,808	County in Idaho, United States
Twin Falls County	86,878	County in Idaho, United States
Idaho Falls	62,888	The most populous city in Bonneville County, Idaho.
Caldwell	58,481	The most populous city in Canyon County, Idaho.
Pocatello	56,637	The most populous city in Bannock County, Idaho.
Coeur d'Alene	52,414	A city in Kootenai County, Idaho.
Twin Falls	50,197	The most populous city in Twin Falls County, Idaho.
Bingham County	46,811	County in Idaho, United States
Bonner County	45,739	County in Idaho, United States