Lewiston, Idaho Demographics & Population 2026

Name: Lewiston, Idaho Demographics
Creator: U.S. Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

During the 2020–2024 ACS period, Lewiston, Idaho had a total population of 34,651, the 11th largest city in Idaho, with a median household income of $72,197, which is 7% lower than the state average. The poverty rate is 12.5%.

Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes

Lewiston Quick Facts

Population 34,651

Median Household Income $72,197

Median Home Value $333,700

Poverty Rate 12.5%

Unemployment Rate 2.5%

Median Age 39.8 years

Homeownership Rate 67.5%

Affordability Ratio 4.6x

Bachelor's Degree or Higher 27.5%

High School Graduation Rate 93.8%

Diversity Index 21/100

Population 34,651 11th of 232

Median Income $72,197 above average

Poverty Rate 12.5% about the same as national

Median Home Value $333,700 above average

How Lewiston Changed

Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.

Metric	2019–2023	2020–2024	Change
Population	34,471	34,651	+0.5%
Median household income	$71,047	$72,197	+1.6%
Median home value	$290,900	$333,700	+14.7%

How Lewiston Compares

Median Household Income

Lewiston

$72,197

$77,800

National

$80,734

Median Home Value

Lewiston

$333,700

$418,600

National

$332,700

Economy & Housing

Household Income Distribution

Under $25K 15.4%

$25K-$50K 22.5%

$50K-$100K 28.6%

$100K+ 33.5%

Detailed income brackets

Under $10K

4.3%

$10K-$15K

4.0%

$15K-$20K

4.1%

$20K-$25K

3.0%

$25K-$30K

4.7%

$30K-$35K

6.8%

$35K-$40K

2.6%

$40K-$45K

4.5%

$45K-$50K

3.9%

$50K-$60K

6.2%

$60K-$75K

7.9%

$75K-$100K

14.5%

$100K-$125K

11.8%

$125K-$150K

7.6%

$150K-$200K

7.8%

$200K+

6.4%

Employment

2.5% Unemployment Rate State: 3.7%|National: 5.2%

60.2% Labor Force Participation

Housing Overview

Owner 67.5%

Renter 32.5%

Affordability Index Moderate

4.6x home value to income ratio

Median gross rent $1,027/mo 17.1% of median household income annually

People & Demographics

Age Distribution

Under 18

21.2%

18-34

22.0%

35-54

23.7%

55-74

23.8%

75+

9.2%

Race & Ethnicity

Diversity Index

Very Low Diversity

A less diverse community where one racial or ethnic group represents a large majority.

State average: 36 | National average: 61

Education

Educational Attainment (Adults 25+)

Lewiston Rankings in Idaho

#11 Population of 232

#85 Median Income of 213

#67 Education of 232

#74 Home Value of 216

Explore Idaho Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Other Cities in Nez Perce County

City	Population	Median Income	Poverty	Home Value
Lapwai	1,021	$57,439	19.4%	$113,700
Culdesac	411	$49,167	32.7%	$160,400
Peck	194	$58,182	30.4%	$152,800
Sweetwater	163	$126,875	4.3%	$192,300

Cities Similar to Lewiston

These cities in the same state have comparable population and economic profiles.

City	Population	Median Income	Home Value	Bachelor's+	Poverty
Post Falls	43,391	$82,183	$477,400	25.3%	11.1%
Eagle	32,855	$122,894	$772,900	57.6%	6.1%
Rexburg	40,543	$50,617	$395,100	42.0%	32.5%
Kuna	27,158	$96,219	$423,900	28.6%	6.8%
Moscow	26,286	$57,022	$376,400	50.0%	25.1%

Population Overview

Lewiston is a mid-sized community located in Idaho, within Nez Perce County. The total population is 34,651. It ranks as the 11th most populous out of 232 Census-designated places in Idaho.

Age Demographics

The median age in Lewiston is 39.8 years. This is 7% higher than the state median of 37.3 years.

Economy, Income & Housing

The median household income in Lewiston is $72,197. This is 7% lower than the state median of $77,800. It is also 11% lower than the national median of $80,734. The poverty rate stands at 12.5%. This is 18% higher than the state poverty rate of 10.6%. The unemployment rate is 2.5%. This is 32% lower than the state rate of 3.7%. The median home value is $333,700. Housing costs are 20% lower than the state median of $418,600. The home-value-to-income ratio is 4.6x. 67.5% of occupied housing units are owner-occupied. This homeownership rate is 6% lower than the state average of 72.1%.

Race & Ethnicity

Lewiston has a predominantly White (non-Hispanic) population, comprising 88.5% of all residents. Hispanic or Latino residents account for 4.2%. The Black or African American population (0.2%) is well below the state average of 0.7%. The Hispanic or Latino population (4.2%) is well below the state average of 13.7%.

Education

27.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 14% lower than the state rate of 31.8%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 93.8%.

Data Sources & Methodology

All demographic data for Lewiston, Idaho is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Idaho state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 232 Census-designated places in Idaho. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.

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Frequently Asked Questions

What is the population of Lewiston, Idaho?

Lewiston, Idaho has a population of 34,651 according to the most recent U.S. Census ACS 5-Year Estimates.

What is the median household income in Lewiston, ID?

The median household income in Lewiston is $72,197, which is 11% lower than the national median of $80,734.

What is the poverty rate in Lewiston, ID?

The poverty rate in Lewiston is 12.5%. This means approximately 4,170 residents live below the federal poverty line.

What is the racial makeup of Lewiston, Idaho?

Lewiston's population is 88.5% White, 0.2% Black, 4.2% Hispanic/Latino, and 1.0% Asian.

What is the median home value in Lewiston, ID?

The median home value in Lewiston is $333,700. The home-value-to-income ratio is 4.6x.

How educated is Lewiston, Idaho?

27.5% of adults (25+) in Lewiston hold a bachelor's degree or higher, and 8.8% hold a graduate or professional degree.