Crime in Alton, Illinois
Major crime in Alton is 2.0 times the U.S. rate per resident: 2.5 times for persons crimes and 1.9 times for property crimes. Expected major crimes are down 8.0% from a year earlier.
Modeled estimates per resident, not counts of incidents. How we calculated this
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 Alton
Burglary stands out most, at 3.8 times the U.S. rate
Expected crimes per year in Alton for each type, and the index against the U.S. rate per resident.
Citywide indexWhere the middle half of residents live
Property crimes
Social disorder
How crime varies across Alton
The middle half of Alton residents live in neighborhoods with a major-crime index between 117 and 236; the typical (median) resident's is 161. The citywide figure (204) is higher than that because crime concentrates in a smaller set of areas.
- 0–500.0%
- 50–10011.3%
- 100–20046.7%
- 200–40035.0%
- 400+6.9%
Share of residents by the index of their census block group, a neighborhood of roughly 600 to 3,000 people.
Highest on weeknights
Major-crime index by time of week, against the U.S. rate for the same hours.
Major crime fell 8.0% in a year; across Illinois it fell 9.6%
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.
Alton against U.S. places with 10,000 to 25,000 residents
112 of the 2,149 other places of this size have a higher major-crime index than Alton; the middle of the group is 72. The 9 nearest in population:
Major-crime index per resident, U.S. = 100; residents in gray.
Alton has a higher major-crime index than all of its 8 nearest neighbors
The 8 nearest cities and towns we cover, by major-crime index. The closest, East Alton (3 mi), is 60% below Alton's rate.
Major-crime index per resident, U.S. = 100; distances between where residents live, in miles.
Questions about crime in Alton
What are the most common crimes in Alton?
By expected count, the most common persons and property crimes are other larceny (about 230 a year), shoplifting (about 167 a year) and burglary (about 151 a year). Compared with the U.S., burglary stands out most: 3.8 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. Alton's figures add up its 27 block groups. The index compares crimes per resident with the U.S. rate.
- Alton has no published incident records in our data, so its estimate relies on agency totals and neighborhood characteristics.
- 33.6% 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: 24,304. Model updated Oct 20, 2026. Release 2026-2026-10-20-2
Full method and validation·Data sources
CrimeMetric. "Crime in Alton, Illinois." Vorp Labs, model updated Oct 20, 2026. https://crimemetric.com/il/alton
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Major-crime index, U.S. = 100
- East Alton3 mi82
- Godfrey4 mi60
- Wood River5 mi95
- Bethalto6 mi25
- Spanish Lake, MO8 mi140
- Old Jamestown, MO9 mi49
- Black Jack, MO9 mi61
- Glasgow Village, MO10 mi128