Peru demographics profile

Population density (sq mi)1,04922291
Median age45.837.437.7
Male/Female ratio0.9:11.0:11.0:1
Married (15yrs & older)60%55%55%
Families w/ Kids under 1836%44%43%
Speak English94%77%79%
Speak Spanish4%13%13%
Peru, IL has a population of 9,913 and is the 3,958th largest city in the United States. The population density is 1,049 per sq mi which is 372% higher than the Illinois average and 1058% higher than the national average. The median age in Peru is 46 which is approximately 22% higher than the Illinois average of 37. In Peru, 60% of the population over 15 years of age are married, 94% speak English and 4% speak Spanish. 86% of Peru residents were born in Illinois, 10% were born out of state, 0% were born outside of the United States and 3% were foreign born.

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Did you know?

  • The population density in Peru is 372% higher than Illinois.
  • The median age in Peru is 22% higher than Illinois.
  • In Peru 98.49% of the population is White.
  • In Peru 0.14% of the population is Black or African American.
  • In Peru 0.24% of the population is Asian.

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Peru population breakdown by race

Black or African American0.14%14.30%12.63%
American Indian0.00%0.23%0.82%
Native Hawaiian0.00%0.03%0.18%
Mixed race0.85%2.34%3.06%
Other race0.28%5.86%4.75%
In Peru, 6.9% 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

Peru age breakdown

Marital status

Age of children in married couples

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