Most Dangerous & Safest Counties in Iowa

Iowa has 16 counties with crime data. The county with the highest homicide rate is Des Moines County at 6.2 per 100K , while the safest is Johnson County at 1.4 per 100K .

All rates are per 100,000 residents and come from County Health Rankings, which compiles data from the CDC, FBI, and other federal sources.

Metric

Most Dangerous Counties in Iowa

Top 10 counties ranked by homicide rate.

# County Homicides
1 Des Moines County 6.2 per 100K -22.1%
2 Webster County 5.9 per 100K -26.5%
3 Black Hawk County 5.4 per 100K -32.1%
4 Scott County 4.9 per 100K -39.1%
5 Linn County 4.6 per 100K -42.4%
6 Cerro Gordo County 4.4 per 100K -45.5%
7 Lee County 4.2 per 100K -47.1%
8 Wapello County 4.1 per 100K -49.1%
9 Polk County 4.1 per 100K -49.3%
10 Pottawattamie County 3.7 per 100K -54.1%

Safest Counties in Iowa

Bottom 10 counties ranked by homicide rate.

# County Homicides
16 Johnson County 1.4 per 100K -82.4%
15 Dallas County 1.5 per 100K -81.1%
14 Dubuque County 1.6 per 100K -79.9%
13 Story County 1.8 per 100K -78.1%
12 Clinton County 3.1 per 100K -61.7%
11 Woodbury County 3.6 per 100K -55.3%
10 Pottawattamie County 3.7 per 100K -54.1%
9 Polk County 4.1 per 100K -49.3%
8 Wapello County 4.1 per 100K -49.1%
7 Lee County 4.2 per 100K -47.1%

All 16 Counties Ranked

Every county in Iowa ranked by homicide rate. Click any county for its full profile.

# County Homicides
1 Des Moines County 6.2 per 100K -22.1%
2 Webster County 5.9 per 100K -26.5%
3 Black Hawk County 5.4 per 100K -32.1%
4 Scott County 4.9 per 100K -39.1%
5 Linn County 4.6 per 100K -42.4%
6 Cerro Gordo County 4.4 per 100K -45.5%
7 Lee County 4.2 per 100K -47.1%
8 Wapello County 4.1 per 100K -49.1%
9 Polk County 4.1 per 100K -49.3%
10 Pottawattamie County 3.7 per 100K -54.1%
11 Woodbury County 3.6 per 100K -55.3%
12 Clinton County 3.1 per 100K -61.7%
13 Story County 1.8 per 100K -78.1%
14 Dubuque County 1.6 per 100K -79.9%
15 Dallas County 1.5 per 100K -81.1%
16 Johnson County 1.4 per 100K -82.4%

About This Data

All figures are estimates from the County Health Rankings & Roadmaps (CDC, FBI, NCHS), published by the U.S. Census Bureau. Values are subject to sampling variability and margin of error.

Rankings are within Iowa only and may differ from national rankings. For more information, see our methodology.

Frequently Asked Questions

What is the most dangerous county in Iowa?
The county with the highest homicide rate in Iowa is Des Moines County, at 6.2 per 100,000 residents. This is 22% below the national rate of 8 per 100K.
What is the safest county in Iowa?
The county with the lowest homicide rate in Iowa is Johnson County, at 1.4 per 100,000 residents.
How does Iowa's crime rate compare to the national average?
0 of 16 counties in Iowa (0%) have a homicide rate above the national average of 8 per 100,000 residents.
Which county in Iowa has the most firearm fatalities?
Audubon County has the highest firearm fatality rate in Iowa at 34.8 per 100,000 residents.
Which county in Iowa has the most drug overdose deaths?
Union County has the highest drug overdose death rate in Iowa at 30.5 per 100,000 residents.