crimebycounty

Most Dangerous Counties in Ohio

Counties with the highest crime rates in Ohio — ranked by FBI UCR data.

Highest Crime County

Delaware County

0/100

State Avg Safety Score

51/100

State Avg Violent Crime

181.0

per 100K

15 Most Dangerous Counties in Ohio

1

Delaware County

Delaware County, Ohio

Violent: 2365.4 per 100K(↑ vs national avg)Property: 16350.9 per 100K
0/100

Safety Score

2

Lucas County

Lucas County, Ohio

Violent: 774.9 per 100K(↑ vs national avg)Property: 2761.3 per 100K
5/100

Safety Score

3

Clark County

Clark County, Ohio

Violent: 554.9 per 100K(↑ vs national avg)Property: 2439.7 per 100K
8/100

Safety Score

4

Hamilton County

Hamilton County, Ohio

Violent: 402.7 per 100K(↑ vs national avg)Property: 2407.2 per 100K
10/100

Safety Score

5

Allen County

Allen County, Ohio

Violent: 417.3 per 100K(↑ vs national avg)Property: 2372.5 per 100K
10/100

Safety Score

6

Ross County

Ross County, Ohio

Violent: 187.1 per 100K(↓ vs national avg)Property: 2440.3 per 100K
12/100

Safety Score

7

Cuyahoga County

Cuyahoga County, Ohio

Violent: 580.4 per 100K(↑ vs national avg)Property: 2026.1 per 100K
12/100

Safety Score

8

Summit County

Summit County, Ohio

Violent: 373.4 per 100K(↓ vs national avg)Property: 2226.0 per 100K
12/100

Safety Score

9

Montgomery County

Montgomery County, Ohio

Violent: 442.6 per 100K(↑ vs national avg)Property: 2143.4 per 100K
12/100

Safety Score

10

Mahoning County

Mahoning County, Ohio

Violent: 313.2 per 100K(↓ vs national avg)Property: 2256.8 per 100K
13/100

Safety Score

11

Stark County

Stark County, Ohio

Violent: 314.5 per 100K(↓ vs national avg)Property: 2021.9 per 100K
16/100

Safety Score

12

Fairfield County

Fairfield County, Ohio

Violent: 249.1 per 100K(↓ vs national avg)Property: 2041.1 per 100K
16/100

Safety Score

13

Greene County

Greene County, Ohio

Violent: 175.5 per 100K(↓ vs national avg)Property: 2016.5 per 100K
18/100

Safety Score

14

Miami County

Miami County, Ohio

Violent: 207.7 per 100K(↓ vs national avg)Property: 1984.0 per 100K
18/100

Safety Score

15

Richland County

Richland County, Ohio

Violent: 260.0 per 100K(↓ vs national avg)Property: 1831.9 per 100K
20/100

Safety Score

Frequently Asked Questions

What is the most dangerous county in Ohio?

Delaware County has the highest crime rate in Ohio with a safety score of 0/100, based on FBI UCR violent and property crime data.

How are crime rates measured in Ohio counties?

Crime rates are reported per 100,000 residents using FBI Uniform Crime Reporting (UCR) data. This includes both violent crimes (murder, assault, robbery) and property crimes (burglary, larceny, motor vehicle theft).

What are the 5 most dangerous counties in Ohio?

The 5 most dangerous counties in Ohio are: 1. Delaware County (0/100), 2. Lucas County (5/100), 3. Clark County (8/100), 4. Hamilton County (10/100), 5. Allen County (10/100).

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Data Sources

Crime data sourced from the FBI Crime Data Explorer (UCR) and County Health Rankings. Safety scores are derived composite metrics.

Data is informational only. Not legal or security advice. Coverage varies by county and reporting year.

Data as of 2026-03-10.

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