Big Rock demographics profile

StatisticBig RockIllinoisNational
Population1,13912,851,684318,558,162
Population density (sq mi)26422291
Median age46.337.437.7
Male/Female ratio1.2:11.0:11.0:1
Married (15yrs & older)72%55%55%
Speak English96%77%79%
Speak Spanish1%13%13%
Big Rock, IL has a population of 1,139 and is the 14,355th largest city in the United States. The population density is 264 per sq mi which is 19% higher than the Illinois average and 191% higher than the national average. The median age in Big Rock is 46 which is approximately 24% higher than the Illinois average of 37. In Big Rock, 72% of the population over 15 years of age are married, 96% speak English and 1% speak Spanish. 76% of Big Rock residents were born in Illinois, 23% were born out of state, 0% were born outside of the United States and 1% were foreign born.

Did you know?

  • The population density in Big Rock is 19% higher than Illinois.
  • The median age in Big Rock is 24% higher than Illinois.
  • In Big Rock 96.49% of the population is Caucasian.
  • In Big Rock 1.76% of the population is African American.
  • In Big Rock 0.00% of the population is Asian.

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Compare Big Rock, IL Demographics To Other Cities

Big Rock population breakdown by race

RaceBig RockIllinoisNational
Caucasian96.49%72.14%73.35%
African American1.76%14.30%12.63%
Asian0.00%5.10%5.22%
American Indian1.14%0.23%0.82%
Native Hawaiian0.00%0.03%0.18%
Mixed race0.61%2.34%3.06%
Other race0.00%5.86%4.75%
In Big Rock, 1.4% 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

Big Rock age breakdown

Marital status

Age of children in married couples

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