Marengo demographics profile

StatisticMarengoIllinoisNational
Population8,08112,851,684318,558,162
Population density (sq mi)1,02222291
Median age38.537.437.7
Male/Female ratio0.9:11.0:11.0:1
Married (15yrs & older)63%55%55%
Families w/ Kids under 1843%44%43%
Speak English85%77%79%
Speak Spanish12%13%13%
Marengo, IL has a population of 8,081 and is the 4,648th largest city in the United States. The population density is 1,022 per sq mi which is 360% higher than the Illinois average and 1028% higher than the national average. The median age in Marengo is 39 which is approximately 3% higher than the Illinois average of 37. In Marengo, 63% of the population over 15 years of age are married, 85% speak English and 12% speak Spanish. 76% of Marengo residents were born in Illinois, 14% were born out of state, 1% were born outside of the United States and 9% were foreign born.
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Did you know?

  • The population density in Marengo is 360% higher than Illinois.
  • The median age in Marengo is 3% higher than Illinois.
  • In Marengo 92.54% of the population is White.
  • In Marengo 0.37% of the population is Black or African American.
  • In Marengo 0.16% of the population is Asian.

Compare Marengo, IL Demographics To Other Cities

Marengo population breakdown by race

RaceMarengoIllinoisNational
White92.54%72.14%73.35%
Black or African American0.37%14.30%12.63%
Asian0.16%5.10%5.22%
American Indian0.64%0.23%0.82%
Native Hawaiian0.00%0.03%0.18%
Mixed race5.06%2.34%3.06%
Other race1.23%5.86%4.75%
In Marengo, 16.0% 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

Marengo age breakdown

Marital status

Age of children in married couples

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