Nampa demographics profile

Population density (sq mi)2,7451991
Median age31.135.737.7
Male/Female ratio1.0:11.0:11.0:1
Married (15yrs & older)55%60%55%
Speak English85%89%79%
Speak Spanish13%8%13%
Nampa, ID has a population of 87,896 and is the 374th largest city in the United States. The population density is 2,745 per sq mi which is 14285% higher than the Idaho average and 2929% higher than the national average. The median age in Nampa is 31 which is approximately 13% lower than the Idaho average of 36. In Nampa, 55% of the population over 15 years of age are married, 85% speak English and 13% speak Spanish. 49% of Nampa residents were born in Idaho, 43% were born out of state, 1% were born outside of the United States and 7% were foreign born.

Did you know?

  • The population density in Nampa is 14285% higher than Idaho.
  • The median age in Nampa is 13% lower than Idaho.
  • In Nampa 86.90% of the population is Caucasian.
  • In Nampa 0.54% of the population is African American.
  • In Nampa 0.77% of the population is Asian.

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Nampa population breakdown by race

African American0.54%0.64%12.63%
American Indian1.21%1.31%0.82%
Native Hawaiian0.33%0.12%0.18%
Mixed race3.15%2.57%3.06%
Other race7.10%2.74%4.75%
In Nampa, 23.3% 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

Nampa age breakdown

Marital status

Age of children in married couples

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