CrimeMetric

Crime in Cahokia, Illinois

Major crime in Cahokia is 49% below the U.S. rate per resident: 22% lower for persons crimes and 55% lower for property crimes. Expected major crimes are down 8.1% from a year earlier.

Modeled estimates per resident, not counts of incidents. How we calculated this

Major crime
51
49% below the U.S. rate
45% below the Illinois rate
down 8.1% in a year
Persons crimes
78
22% below the U.S. rate
14% above the Illinois rate
down 4.1% in a year
Property crimes
45
55% below the U.S. rate
54% below the Illinois rate
down 9.5% in a year
Social disorder
76
24% below the U.S. rate
30% below the Illinois rate
down 6.6% in a year

Index: crimes per resident compared with the U.S., where 100 is the U.S. rate and 200 is twice it.

Check an address in Cahokia

Crime by type

Weapons violations stand out most, at 2.7 times the U.S. rate

Expected crimes per year in Cahokia for each type, and the index against the U.S. rate per resident.

Citywide indexWhere the middle half of residents live

IndexPer year

How crime varies across Cahokia

The middle half of Cahokia residents live in neighborhoods with a major-crime index between 29 and 47; the typical (median) resident's is 37. The citywide figure (51) is higher than that because crime concentrates in a smaller set of areas.

Map of Cahokia, with its census block groups shaded by major-crime index band
Block groups shaded by major-crime index, in the bar's bands below; pale gray where fewer than 100 people live. Highways and boundaries: U.S. Census Bureau.
  • 0–5080.2%
  • 50–1007.2%
  • 100–20012.6%
  • 200–4000.0%
  • 400+0.0%

Share of residents by the index of their census block group, a neighborhood of roughly 600 to 3,000 people.

When it happens

Highest on Friday and Saturday nights

Major-crime index by time of week, against the U.S. rate for the same hours.

Monday to Friday, 6am to 6pm51
Sunday to Thursday nights, 6pm to 6am49
Saturday and Sunday, 6am to 6pm51
Friday and Saturday nights, 6pm to 6am55
Trend and outlook

Major crime fell 8.1% in a year; across Illinois it fell 9.6%

Past yearBy 2031
Major crime-8.1%IL -9.6%-17.1%IL -14.2%
Persons crimes-4.1%IL -14.4%-5.5%IL -6.8%
Property crimes-9.5%IL -8.9%-21.6%IL -15.4%
Social disorder-6.6%IL -12.0%-13.4%IL -8.2%

Change in expected crimes, with Illinois as a whole in gray. The past year uses the reporting agencies' year-to-date FBI data; 2031 is the model's projection.

Similar-size places

Cahokia against U.S. places with 10,000 to 25,000 residents

1,467 of the 2,149 other places of this size have a higher major-crime index than Cahokia; the middle of the group is 72. The 9 nearest in population:

Flowood, MS11,78387
Fenton, MI11,78184
Maili, HI11,80353
Cahokia, IL11,79651
Progress, PA11,80225

Major-crime index per resident, U.S. = 100; residents in gray.

Nearby places

Cahokia has a higher major-crime index than 3 of its 8 nearest neighbors

The 8 nearest cities and towns we cover, by major-crime index. The closest, Centreville (4 mi), is 26% below Cahokia's rate.

Lemay, MO6 mi133
Madison8 mi118
Cahokia51

Major-crime index per resident, U.S. = 100; distances between where residents live, in miles.

Questions about crime in Cahokia

What are the most common crimes in Cahokia?

By expected count, the most common persons and property crimes are other larceny (about 27 a year), aggravated assault (about 23 a year) and shoplifting (about 16 a year). Compared with the U.S., weapons violations stands out most: 2.7 times the U.S. rate per resident.

How we calculated this

Each police agency's crimes, as reported to the FBI, are spread across the census block groups it serves using population, jobs, points of interest and, where available, local incident records. Cahokia's figures add up its 13 block groups. The index compares crimes per resident with the U.S. rate.

  • Cahokia has no published incident records in our data, so its estimate relies on agency totals and neighborhood characteristics.
  • 0.0% of residents live in block groups whose estimate has high confidence (80% interval within about 5x).
  • Rates are per resident, so places where many people work or visit but few live, such as downtowns, airports and stadiums, can read high.
  • Disorderly conduct and trespassing are modeled, because the FBI records them only through arrests.
  • Residents: 11,796. Model updated Oct 20, 2026. Release 2026-2026-10-20-2

Full method and validation·Data sources

Cite this page

CrimeMetric. "Crime in Cahokia, Illinois." Vorp Labs, model updated Oct 20, 2026. https://crimemetric.com/il/cahokia

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Major-crime index, U.S. = 100