Lewis County, Idaho Population 2020

Lewis County, Idaho's estimated population is 3,902 with a growth rate of 1.25% in the past year according to the most recent United States census data. Lewis County, Idaho is the 41st largest county in Idaho.

Year Population Growth Growth Rate
20183,861-41-1.05%
20173,902481.25%
20163,854591.55%
20153,795-18-0.47%
20143,813100.26%
20133,803-17-0.45%
20123,820150.39%
20113,805-15-0.39%
20103,8203048.65%
19903,516-602-14.62%
19804,1182516.49%
19703,867-556-12.57%
19604,4232155.11%
19504,208-458-9.82%
19404,666-572-10.92%
19305,238-613-10.48%
19205,8510.00%

How Many People Live in Lewis County, Idaho?

3,902

Lewis County, Idaho Population Growth

Population by Race

Race Population Percentage
White3,35287.18%
American Indian and Alaska Native2807.28%
Two or More Races1223.17%
Asian541.40%
Some Other Race270.70%
Black or African American90.23%
Native Hawaiian and Other Pacific Islander10.03%

Lewis County, Idaho Population Pyramid 2020

Lewis County, Idaho Median Age

48.3


Total

46.1


Male

49.4


Female

Lewis County, Idaho Adults

There are 2,955 adults, (934 of whom are seniors) in Lewis County, Idaho.

Lewis County, Idaho Age Dependency

90.3

Age Dependency Ratio

46.2

Old Age Dependency Ratio

44

Child Dependency Ratio

Lewis County, Idaho Sex Ratio

Female

1,934

50.30%

Male

1,911

49.70%

Lewis County, Idaho Households and Families

Lewis County, Idaho Renter vs Owner Occupied by Household Type

Lewis County, Idaho Household Types

Type Owner Renter
Married85.5%14.5%
All71.5%28.5%
Non Family60.4%39.6%
Male59.1%40.9%
Female47.1%52.9%

71.5%

Rate of Home Ownership

Type Count Average Size Owned
All1,6322.3371.5
Married7683.0485.5
Non Family7131.2160.4
Female854.0747.1
Male663.8259.1

3.1

Average Family Size

2.33

Average Household Size

6.2%

Unmarried (Opposite Sex)

0%

Unmarried (Same Sex)

Lewis County, Idaho Education

Education Attained Count Percentage
Less Than 9th Grade1063.92%
9th to 12th Grade2067.62%
High School Graduate79429.35%
Some College86531.98%
Associates Degree2659.80%
Bachelors Degree33212.27%
Graduate Degree1375.06%

Lewis County, Idaho Educational Attainment by Race

Name Total High School Bachelors
White2,3942,142433
Native American13611520
Hispanic7356
Multiple Races715211
Asian31293
Other Race129
Black222

The highest rate of high school graduation is among black people with a rate of 100.00%.

The highest rate of bachelors degrees is among black people with a rate of 100.00%.

Name Average Male Female
Overall$28,699$35,231$21,863
Less Than High School$20,833$22,813$20,625
High School Grad$24,911$32,031$14,625
Some College$26,676$31,458$22,750
Bachelors Degree$41,471$54,063$32,159
Graduate Degree$53,942$54,375$53,750

$28,699

Average Earnings

$35,231

Average Male

$21,863

Average Female

Lewis County, Idaho Language

Lewis County, Idaho Language by Age

Lewis County, Idaho Language

96.73% of Lewis County, Idaho residents speak only English, while 3.27% speak other languages. The non-English language spoken by the largest group is Other languages, which is spoken by 1.05% of the population.

Lewis County, Idaho Poverty

Lewis County, Idaho Poverty by Race

Name Total In Poverty Poverty Rate
White3,20038011.88%
Native27312144.32%
Multiple1183227.12%
Hispanic1642012.20%
Asian5435.56%
Islander11100.00%

14.18%

Overall Poverty Rate

12.27%

Male Poverty Rate

16.02%

Female Poverty Rate

Poverty in Lewis County, Idaho

The race most likely to be in poverty in Lewis County, Idaho is Islander, with 100.00% below the poverty level.

The race least likely to be in poverty in Lewis County, Idaho is Asian, with 5.56% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.75%. Among those working part-time, it was 17.92%, and for those that did not work, the poverty rate was 18.78%.

Name Poverty
Less Than High School19.23%
High School12.45%
Some College12.24%
Bachelors or Greater6.82%
Name Poverty
Male Unemployed27.27%
Female Unemployed20.00%
Female Employed8.15%
Male Employed6.19%

Lewis County, Idaho Income

Lewis County, Idaho Income by Household Type

Name Median Mean
Households$41,326$55,036
Families$53,201$67,809
Married Families$61,094-
Non Families$23,042$37,013

Lewis County, Idaho Marital Status

Lewis County, Idaho Marital Status

Marriage Rates

52.5%

Overall Marriage Rate

52.5%

Male Marriage Rate

52.6%

Female Marriage Rate

Lewis County, Idaho Married by Age and Sex

Lewis County, Idaho Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 55-64.

Lewis County, Idaho Marital Status by Race

Lewis County, Idaho Veterans

395

Number of Veterans

360

Male Veterans

35

Female Veterans

War Veterans
Vietnam181
Korea39
First Gulf War32
Second Gulf War26
World War II11
Name Veterans % of Total
White36713.98%
2 or More1412.07%
Indian85.13%
Hispanic55.21%
Asian49.76%
Other214.29%

$Lewis County, Idaho Veterans by Education

10.13%

Veteran Poverty Rate

52.41%

Veteran Disability Rate

Lewis County, Idaho Employment Status

52.6%

Labor Force Participation

49.6%

Employment Rate

5.8%

Unemployment Rate

Lewis County, Idaho Place of Birth

Origin of Non-Citizens

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

55.01%

Born in Idaho

98.00%

Native Born

2.00%

Foreign Born

0.96%

Non Citizen

Place of Birth

98.00% of Lewis County, Idaho residents were born in the United States, with 55.01% having been born in Idaho. 0.96% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990