Rock City demographics profile

StatisticRock CityIllinoisNational
Population29412,851,684318,558,162
Population density (sq mi)1,92722291
Median age36.937.437.7
Male/Female ratio0.9:11.0:11.0:1
Married (15yrs & older)70%55%55%
Families w/ Kids under 1855%44%43%
Speak English97%77%79%
Speak Spanish2%13%13%
Rock City, IL has a population of 294 and is the 22,613th largest city in the United States. The population density is 1,927 per sq mi which is 767% higher than the Illinois average and 2027% higher than the national average. The median age in Rock City is 37 which is approximately 1% lower than the Illinois average of 37. In Rock City, 70% of the population over 15 years of age are married, 97% speak English and 2% speak Spanish. 73% of Rock City residents were born in Illinois, 25% were born out of state, 1% were born outside of the United States and 1% were foreign born.
For Sale
For Rent

Find real estate listings

Find rental listings

Did you know?

  • The population density in Rock City is 767% higher than Illinois.
  • The median age in Rock City is 1% lower than Illinois.
  • In Rock City 99.32% of the population is White.
  • In Rock City 0.00% of the population is Black or African American.
  • In Rock City 0.00% of the population is Asian.

Compare Rock City, IL Demographics To Other Cities

Rock City population breakdown by race

RaceRock CityIllinoisNational
White99.32%72.14%73.35%
Black or African American0.00%14.30%12.63%
Asian0.00%5.10%5.22%
American Indian0.00%0.23%0.82%
Native Hawaiian0.00%0.03%0.18%
Mixed race0.68%2.34%3.06%
Other race0.00%5.86%4.75%
In Rock City, 0.0% 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

Rock City age breakdown

Marital status

Age of children in married couples

Source: The Rock City, IL demographics data displayed above is derived from the 2016 United States Census Bureau American Community Survey (ACS).
Are you looking to buy or sell?
What style of home are you
What is your
$100K$250K$500K$750K$1M+
When are you looking to
ASAP1-3 mos.3-6 mos.6-9 mos.1 yr+
Connect with top real estate agents
By submitting this form, you consent to receive text messages, emails, and/or calls (may be recorded; and may be direct, autodialed or use pre-recorded/artificial voices even if on the Do Not Call list) from AreaVibes or our partner real estate professionals and their network of service providers, about your inquiry or the home purchase/rental process. Messaging and/or data rates may apply. Consent is not a requirement or condition to receive real estate services. You hereby further confirm that checking this box creates an electronic signature with the same effect as a handwritten signature.