Crime in Marion, Iowa
Major crime in Marion is 58% below the U.S. rate per resident: 64% lower for persons crimes and 57% lower for property crimes. Expected major crimes are down 6.8% 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 Marion
Every crime type in Marion is near or below the U.S. rate
Expected crimes per year in Marion 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 Marion
The middle half of Marion residents live in neighborhoods with a major-crime index between 15 and 45; the typical (median) resident's is 20. The citywide figure (42) is higher than that because crime concentrates in a smaller set of areas.
- 0–5079.4%
- 50–10014.1%
- 100–2002.9%
- 200–4003.7%
- 400+0.0%
Share of residents by the index of their census block group, a neighborhood of roughly 600 to 3,000 people.
Highest on weekday daytimes
Major-crime index by time of week, against the U.S. rate for the same hours.
Major crime fell 6.8% in a year; across Iowa it fell 10.5%
Change in expected crimes, with Iowa as a whole in gray. The past year uses the reporting agencies' year-to-date FBI data; 2031 is the model's projection.
Marion against U.S. places with 25,000 to 50,000 residents
794 of the 960 other places of this size have a higher major-crime index than Marion; the middle of the group is 77. The 9 nearest in population:
Major-crime index per resident, U.S. = 100; residents in gray.
Marion has a higher major-crime index than 5 of its 8 nearest neighbors
The 8 nearest cities and towns we cover, by major-crime index. The closest, Robins (4 mi), is 36% below Marion's rate.
Major-crime index per resident, U.S. = 100; distances between where residents live, in miles.
Questions about crime in Marion
What are the most common crimes in Marion?
By expected count, the most common persons and property crimes are other larceny (about 93 a year), shoplifting (about 73 a year) and theft from vehicle (about 56 a year). Compared with the U.S., rape / sexual assault stands out most: 21% below 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. Marion's figures add up its 27 block groups. The index compares crimes per resident with the U.S. rate.
- Marion's published incident records inform the estimate for every neighborhood.
- 20.0% 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: 44,578. Model updated Oct 20, 2026. Release 2026-2026-10-20-2
Full method and validation·Data sources
CrimeMetric. "Crime in Marion, Iowa." Vorp Labs, model updated Oct 20, 2026. https://crimemetric.com/ia/marion
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Major-crime index, U.S. = 100
- Robins4 mi27
- Hiawatha5 mi70
- Cedar Rapids6 mi117
- Mount Vernon11 mi24
- Anamosa17 mi30
- North Liberty20 mi23
- Vinton23 mi27
- Monticello24 mi43