Lewiston demographics profile

Population density (sq mi)1,8791991
Median age40.135.737.7
Male/Female ratio1.0:11.0:11.0:1
Married (15yrs & older)57%60%55%
Families w/ Kids under 1839%45%43%
Speak English97%89%79%
Speak Spanish1%8%13%
Lewiston, ID has a population of 32,484 and is the 1,308th largest city in the United States. The population density is 1,879 per sq mi which is 9750% higher than the Idaho average and 1974% higher than the national average. The median age in Lewiston is 40 which is approximately 12% higher than the Idaho average of 36. In Lewiston, 57% of the population over 15 years of age are married, 97% speak English and 1% speak Spanish. 54% of Lewiston residents were born in Idaho, 44% were born out of state, 1% were born outside of the United States and 2% were foreign born.

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Did you know?

  • The population density in Lewiston is 9750% higher than Idaho.
  • The median age in Lewiston is 12% higher than Idaho.
  • In Lewiston 94.42% of the population is White.
  • In Lewiston 0.33% of the population is Black or African American.
  • In Lewiston 0.93% of the population is Asian.

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Lewiston population breakdown by race

Black or African American0.33%0.64%12.63%
American Indian1.64%1.31%0.82%
Native Hawaiian0.06%0.12%0.18%
Mixed race2.42%2.57%3.06%
Other race0.21%2.74%4.75%
In Lewiston, 3.3% of people are of Hispanic or Latino origin.
Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.

Languages spoken

Place of birth by citizenship

Household income distribution

Source of income

Lewiston age breakdown

Marital status

Age of children in married couples

Source: The Lewiston, ID demographics data displayed above is derived from the 2016 United States Census Bureau American Community Survey (ACS).
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