St. Augustine demographics profile

StatisticSt. AugustineIllinoisNational
Population11512,851,684318,558,162
Population density (sq mi)19222291
Median age55.637.437.7
Male/Female ratio0.7:11.0:11.0:1
Married (15yrs & older)65%55%55%
Speak English100%77%79%
Speak Spanish0%13%13%
St. Augustine, IL has a population of 115 and is the 26,545th largest city in the United States. The population density is 192 per sq mi which is 14% lower than the Illinois average and 112% higher than the national average. The median age in St. Augustine is 56 which is approximately 49% higher than the Illinois average of 37. In St. Augustine, 65% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 70% of St. Augustine residents were born in Illinois, 30% were born out of state, 0% were born outside of the United States and 0% were foreign born.

Did you know?

  • The population density in St. Augustine is 14% lower than Illinois.
  • The median age in St. Augustine is 49% higher than Illinois.
  • In St. Augustine 100.00% of the population is Caucasian.
  • In St. Augustine 0.00% of the population is African American.
  • In St. Augustine 0.00% of the population is Asian.

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Compare St. Augustine, IL Demographics To Other Cities

St. Augustine population breakdown by race

RaceSt. AugustineIllinoisNational
Caucasian100.00%72.14%73.35%
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 race0.00%2.34%3.06%
Other race0.00%5.86%4.75%
In St. Augustine, 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

St. Augustine age breakdown

Marital status

Age of children in married couples

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