United States › Idaho › Lewis County COUNTY
Lewis County Idaho · 3,704 residents (2025 est.) · 479 sq mi
Time machine
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The short version
With 3,682 people, Lewis County is a county in Idaho. The median age is 49.0, about 10 years above the US median. Four-year degrees are less common here than nationally, at 21% of adults. Density works out to 8 people per square mile. 1% of locals were born outside the United States. That trails the Idaho median by roughly 34%.
At a glance
Lower income
below the US median
US median: $82,259
Older
median age 49.0
US median: 38.9
Less educated
21% hold a bachelor's degree
US average: 36%
Less affordable
home values up 58%, inflation adjusted
US median home: $376,019
Section 01
Population & growth from 3,747 in 2000
3,704 in 2025 (Census Bureau estimate)
from 8 / sq mi in 2009
US average: 281
from 42.5 in 2000
US average: 38.9
Population, 1990 – 2024
3K 4K 4K 4K 4K 1990 2000 2010 2020 2024 Lewis County Age distribution, 2024
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $51,615
−10%inflation adjusted, since 2000
from $31,413 in 2000
US average: $82,259
from $15,942 in 2000
US average: $44,673
Households earning $100K+
from 12.6% in 2009
US average: 53.3%
from 12.0% in 2000
US average: 12.5%
from 0.375 in 2010
US average: 0.476
Workforce by industry, 2024
Agriculture, forestry, fishing 14.1%
Professional, scientific, technical 5.6%
Public administration 2.6%
Transportation & warehousing 1.8%
Arts, entertainment, food 0.8%
Education & health services 0.7%
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$225,300
+58%inflation adjusted, since 2000
from $78,200 in 2000
US average: $376,019
$737
+18%inflation adjusted, since 2000
from $342 in 2000
US average: $1,442
from 74.6% in 2000
23.6% rent
from 12.7% in 2009
US average: 10.0%
2.28 people
Unchangedsince 2009
from 2.28 people in 2009
US average: 2.54
from 16.5% in 2009
US average: 22.9%
from 37.3% in 2009
US average: 47.4%
from 3.0 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04
Race & ethnicity 2000
White, non-Hispanic 91.5%(3,427)
Hispanic / Latino 1.9%(71)
2024
White, non-Hispanic 81.7%(3,008)
Hispanic / Latino 4.3%(158)
from 23 in 2009
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
from 20 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 16 more ancestry groups with data from 14.8% in 2000
US average: 35.6%
High school or higher
from 84.2% in 2000
US average: 89.6%
from 3.7% in 2000
US average: 14.0%
Section 06
Commute & transportation from 17.5 min in 2000
US average: 26.5
from 77.2% in 2009
US average: 68.9%
from 8.8% in 2009
US average: 8.5%
from 0.4% in 2009
US average: 3.2%
from 4.4% in 2009
US average: 15.0%
from 8.5% in 2009
US average: 2.4%
from 0.2% in 2009
US average: 0.4%
from 6.9% in 2009
US average: 8.3%
Section 07
Work & employment from 9.0% in 2011
US average: 5.2%
from 51.8% in 2011
US average: 63.5%
Women 20-64 in the labor force
from 65.0% in 2020
US average: 74.6%
from 17.4% in 2009
US average: 13.1%
from 26.6% in 2009
US average: 42.5%
Section 08
People & community from 1.1% in 2009
US average: 14.1%
from 19.6% in 2009
US average: 6.2%
from 21.1% in 2012
US average: 13.3%
from 21.6% in 2013
US average: 8.4%
from 63.0% in 2017
US average: 91.0%
Computer in household
from 80.8% in 2020
US average: 95.5%
from 88.7% in 2020
US average: 87.7%
from 97.6% in 2016
US average: 77.7%
from 0.7% in 2016
US average: 13.6%
Marital status
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 21.6% in 2013
US average: 8.4%
from 36.3% in 2020
US average: 54.8%
Direct-purchase
from 20.1% in 2020
US average: 13.8%
from 31.3% in 2020
US average: 18.4%
from 22.4% in 2020
US average: 20.9%
VA health care
from 4.1% in 2020
US average: 2.2%
Any private
from 58.5% in 2020
US average: 67.1%
Any public
from 47.9% in 2020
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2024
Gulf War (2001 or later) 12.5%(39)
Share of the 311 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
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Drill deeper
Places similar to Lewis County Head to head
Compare Lewis County to nearby counties LEWIS COUNTY VS
Nez Perce County
Income $72,599 +41%
Home value $334,700 +49%
Population 42,905 +1058%
SEE FULL COMPARISON →
LEWIS COUNTY VS
Asotin County
Income $72,283 +40%
Home value $325,600 +45%
Population 22,545 +509%
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LEWIS COUNTY VS
Latah County
Income $65,424 +27%
Home value $368,600 +64%
Population 41,842 +1030%
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LEWIS COUNTY VS
Clearwater County
Income $60,000 +16%
Home value $268,200 +19%
Population 9,118 +146%
SEE FULL COMPARISON →
Frequently asked
How many people live in Lewis County, Idaho? Lewis County, Idaho has about 3,682 residents according to the 2024 American Community Survey.
What is the median household income in Lewis County, Idaho? The typical household in Lewis County, Idaho earns about $51,615 a year. Half of households make more than that, and half make less.
Is Lewis County, Idaho expensive? In Lewis County, Idaho, the median home is worth about $225,300, and the typical rent is about $737 a month.
How educated are people in Lewis County, Idaho? About 21.3% of adults age 25 and over in Lewis County, Idaho hold a bachelor's degree or higher.
What is the poverty rate in Lewis County, Idaho? About 15.3% of people in Lewis County, Idaho live below the federal poverty line.
Has Lewis County, Idaho grown since 1990? Yes, Lewis County, Idaho has grown since 1990. The population has added about 166 residents, a change of about 5 percent over that period.
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