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COUNTY · 2020 ACS

Lewis County

Idaho · 3,533 residents · 479 sq mi
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The short version

Lewis County is home to 3,533 people in Idaho. The median age is 48.8, about 10 years above the US median. Four-year degrees are less common here than nationally, at 19% of adults. 2% of locals were born outside the United States. Households here earn about 28% less than in Idaho as a whole. The typical home is worth $150,000, having more than doubled since 2000.

At a glance
Lower income
below the US median
US median: $66,278
Older
median age 48.8
US median: 38.8
Less educated
19% hold a bachelor's degree
US average: 33%
Less affordable
home values up 28%, inflation adjusted
US median home: $265,253
Section 01

Population & growth

3,533
−6%since 2000
from 3,747 in 2000
1990 – 2025
48.8
+15%since 2000
from 42.5 in 2000
US average: 38.8
Land area
479 sq mi
Population, 19902024
3K4K4K4K4K19902000201020202024Lewis County
20244K
1990201020202024
Age distribution, 2020
Under 54.8%(169)
US avg: 5.6%
5 to 96%(212)
US avg: 6.1%
10 to 146.3%(221)
US avg: 6.5%
15 to 195.7%(201)
US avg: 6.6%
20 to 243.3%(117)
US avg: 6.7%
25 to 348.7%(307)
US avg: 13.5%
35 to 4411.4%(404)
US avg: 12.7%
45 to 549.1%(322)
US avg: 12.3%
55 to 6418.7%(661)
US avg: 13.1%
65 to 7415.5%(546)
US avg: 10%
75 to 848.2%(291)
US avg: 4.9%
85 and over2.3%(82)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

$42,370
−10%inflation adjusted, since 2000
from $31,413 in 2000
US average: $66,278
1990 – 2024
$24,994
+57%since 2000
from $15,942 in 2000
US average: $35,364
Households earning $100K+
22.9%
+10.4 ptssince 2009
from 12.6% in 2009
US average: 43.9%
15.4%
+3.4 ptssince 2000
from 12.0% in 2000
US average: 12.8%
Workforce by industry, 2020
Agriculture, forestry, fishing12.3%
US avg: 1.7%
Construction11.5%
US avg: 1.2%
Wholesale trade9.6%
US avg: 6.7%
Retail trade8.4%
US avg: 10%
Information6.4%
US avg: 11.1%
Finance & insurance5.7%
US avg: 5.5%
Professional, scientific, technical4.9%
US avg: 4.7%
Transportation & warehousing3%
US avg: 2.5%
Other services2.8%
US avg: 6.6%
Public administration2.1%
US avg: 4.7%
Arts, entertainment, food1.6%
US avg: 2%
Manufacturing0.8%
US avg: 0.5%
Education & health services0.8%
US avg: 0.8%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

$150,000
+28%inflation adjusted, since 2000
from $78,200 in 2000
US average: $265,253
1990 – 2024
$585
+14%inflation adjusted, since 2000
from $342 in 2000
US average: $1,124
71.3%
−3.3 ptssince 2000
from 74.6% in 2000
28.7% rent
2.32 people
+2%since 2009
from 2.28 people in 2009
US average: 2.61
3.5
+16%since 2009
from 3.0 in 2009
2009 – 2024
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04

Race & ethnicity

2000
White, non-Hispanic91.5%(3,427)
Black0.3%(13)
Hispanic / Latino1.9%(71)
Asian0.4%(14)
Other0%
2020
White, non-Hispanic85.8%(3,031)
Black0.2%(6)
Hispanic / Latino3.9%(138)
Asian0.2%(7)
Other11.5%(407)
20
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins

Detailed origins & ancestry

Hispanic origin
Mexican4.3%(167)
Venezuelan0.1%(3)
Asian origin
Nepalese0.3%(13)
Chinese0.2%(7)
Filipino0.2%(6)
Korean0.1%(5)
Pacific Islander origin
Samoan0.1%(4)
Ancestry
German24.3%(934)
Irish11.2%(431)
English10%(386)
American5.5%(212)
Norwegian4.6%(177)
Scottish4.2%(163)
Swedish2.8%(107)
Italian2.7%(103)
French2.6%(102)
Dutch2%(76)
Polish1.7%(65)
Scotch-Irish1.5%(59)
+ 24 more ancestry groups with data
Welsh1.4%(55)
Brazilian0.8%(30)
Finnish0.7%(26)
Hungarian0.5%(20)
Danish0.5%(19)
Belgian0.4%(16)
Austrian0.4%(15)
Swiss0.4%(14)
Czech0.3%(13)
Russian0.3%(11)
British0.2%(8)
Portuguese0.2%(6)
Ukrainian0.1%(5)
Lebanese0.1%(4)
Croatian0.1%(4)
Canadian0.1%(3)
Lithuanian0.1%(3)
Slovak0.1%(3)
Bulgarian0.1%(2)
Greek0.1%(2)
Haitian0.1%(2)
Section 05

Education

19.1%
+4.3 ptssince 2000
from 14.8% in 2000
US average: 32.9%
High school or higher
89.1%
+4.9 ptssince 2000
from 84.2% in 2000
US average: 88.5%
5.8%
+2.1 ptssince 2000
from 3.7% in 2000
US average: 12.7%
Section 06

Commute & transportation

21.3 min
+22%since 2000
from 17.5 min in 2000
US average: 26.9
75.8%
−1.5 ptssince 2009
from 77.2% in 2009
US average: 75.1%
5.5%
−1.4 ptssince 2009
from 6.9% in 2009
US average: 8.4%
Section 07

Work & employment

5.1%
−3.9 ptssince 2011
from 9.0% in 2011
US average: 5.4%
47.0%
−4.8 ptssince 2011
from 51.8% in 2011
US average: 63.4%
Women 20-64 in the labor force
65.0%
US average: 73.3%
31.3%
+4.7 ptssince 2009
from 26.6% in 2009
US average: 39.3%
Section 08

People & community

49.2%
−0.3 ptssince 2009
from 49.5% in 2009
50.8%
+0.3 ptssince 2009
from 50.5% in 2009
1.8%
+0.7 ptssince 2009
from 1.1% in 2009
US average: 13.5%
13.6%
−8.0 ptssince 2013
from 21.6% in 2013
US average: 8.8%
Computer in household
80.8%
US average: 91.9%
88.7%
US average: 86.2%
Marital status (2024)
Men 15+
Never married22%(334)
Married61.7%(936)
Widowed3.9%(59)
Divorced12.3%(187)
Women 15+
Never married19.1%(287)
Married54.9%(823)
Widowed13.4%(201)
Divorced12.5%(188)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09

Health coverage

13.6%
−8.0 ptssince 2013
from 21.6% in 2013
US average: 8.8%
36.3%
US average: 55.4%
Direct-purchase
20.1%
US average: 13.7%
31.3%
US average: 17.6%
22.4%
US average: 20.0%
VA health care
4.1%
US average: 2.3%
Any private
58.5%
US average: 68.1%
Any public
47.9%
US average: 35.2%

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, 2020
Gulf War (2001 or later)5.1%(18)
US avg: 20.6%
Gulf War (1990s)7.1%(25)
US avg: 21.4%
Vietnam era50.7%(178)
US avg: 35.2%
Korean War8.5%(30)
US avg: 7.6%
World War II0.9%(3)
US avg: 2.9%

Share of the 351 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.

BAR + DOT: THIS PLACE · TICK: US AVERAGE
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Frequently asked

How many people live in Lewis County, Idaho?

Lewis County, Idaho has about 3,533 residents according to the 2020 American Community Survey.

What is the median household income in Lewis County, Idaho?

The typical household in Lewis County, Idaho earns about $42,370 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 $150,000, and the typical rent is about $585 a month.

How educated are people in Lewis County, Idaho?

About 19.1% 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 15.4% 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 17 residents, a change of about 0 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →