Introduction to Cahokia, Illinois

Cahokia, Illinois, in St Clair county, is 6 miles SE of St. Louis, Missouri. The village is in the Saint Louis area. There are 16,391 residents in Cahokia.

Cahokia History

The Native American tribes were the original inhabitants of the present day village of Cahokia. The history of the village can be traced back to the later part of 1696, when Father Pinet tried to convert the Tamaroa and Cahokian Indians to Christianity. Cahokia became a large French colonial town during the next 100 years. In 1778, a court was set up in Cahokia by George Rogers Clark. On July 5, 1778, Cahokia was officially incorporated. Later on, it became the county seat of St. Clair County.

Cahokia and nearby Attractions

  • Cahokia Mounds State Historic Park
  • World Aquarium
  • Black World History Museum
  • St Louis Zoo
  • Frank Holten State Recreation Area
  • Missouri Botanical Garden

Things To Do In Cahokia

While in Cahokia, you can visit the Cahokia Mounds State Historic Park, Old Cahokia Courthouse, and the Cahokia Public Library and explore the history of the village. Cahokia also offers an 18-hole municipal golf course. The City Museum, World Aquarium, and Missouri Botanical Garden are also close to the village. You can reach the Cathedral Basilica of St. Louis and the Magic House of St. Louis Children's Museum within a few minutes.

Cahokia Transportation

Lambert - St Louis International Airport is the nearest airport.

Cahokia Higher Education

Saint Louis University - main campus, Webster University, and Saint Louis Community College - Forest Park are nearby.


Total Population 14,905
Male Share of the Population 45.7%
Female Share of the Population 54.3%
Senior Citizens 9.5%
Employed Population 16+ 5,144
Age of the Population 32


% of people married 30.9%
Average household size 3

Education and Earnings

Population % with Bachelor Degree or Higher 7.3%
Median Earnings25+ $26,886
Median Earnings Without High School Qualification $19,083
Median Earnings With High School Degree $26,727


Median Family Income $34,942
% Above Poverty Level 63.5%
% Below Poverty Level 36.5%

Commute & Sprawl

Average Commute Time 22 minutes
% Working from Home 0.8%
% Walking and Biking to Work 1.6%
% Using Public Transportation 4.6%


People Living Alone 26.5%
Median Gross Rent $864
Median House Value $53,900


Other(often includes Hispanic and African American) 66.5%
US/American 0%
English 2.5%
Irish 4.2%

Cahokia Almanac

Category Value
Nearest Large City 6 miles SE of St. Louis, Missouri
County St Clair
Metro Area Saint Louis
Standard Zip Codes 62206
Phone Area Codes 618
Time Zone Central (-6 hours from GMT)
Daylight Savings The city observes Daylight Saving Time.
Latitude 38.57
Longitude -90.19

Cahokia Climate

Nearest Weather Stations


  • Temp ranges are avg daily min and max for the month
  • Precipitation is rainfall (and rainfall equiv of snowfall)

Distance 0.6 miles
Jan Temp 20 to 38 F
Apr Temp 46 to 67 F
Jul Temp 68 to 89 F
Oct Temp 47 to 69 F
Annual Precip 40.3 inches
Distance 6 miles
Jan Temp 21 to 38 F
Apr Temp 47 to 66 F
Jul Temp 71 to 91 F
Oct Temp 49 to 69 F
Annual Precip 38.8 inches
Distance 15.6 miles
Jan Temp 21 to 38 F
Apr Temp 47 to 67 F
Jul Temp 71 to 90 F
Oct Temp 48 to 68 F
Annual Precip 38.7 inches

Nearby Cities and Towns

Location Population Median Family Income
Alorton 1,729 $21,750
Centreville 5,208 $25,635
Dupo 4,045 $66,792
East Carondelet 546 $35,139
East St. Louis 26,697 $21,301

Cahokia Public Libraries

Cahokia P.l.d.
Cahokia, Illinois
(618) 332-1491
Library Web Site

library logo

More Information for Librarians

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Cahokia High Schools

Title I eligible, not participating.
Serves 1,163 students.
Student/teacher ratio: 17.6

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