countyscore

Best Soil Quality Counties in Ohio

Soil composition, pH, drainage, and organic matter content Compare rankings across all 88 counties.

Average Soil Quality Score
66/100
Top County
Clark County
Counties Ranked
88

Top 10

#1
Clark County
OH
88/100
#2
Hardin County
OH
85/100
#3
Madison County
OH
85/100
#4
Mercer County
OH
81/100
#5
Logan County
OH
81/100
#6
Auglaize County
OH
81/100
#7
Union County
OH
81/100
#8
Allen County
OH
81/100
#9
Darke County
OH
81/100
#10
Champaign County
OH
80/100

All Ohio Counties Ranked

#CountySoil Quality ScoreOverall Score
1Clark County, OH
87.5
32.3
2Hardin County, OH
85
50.9
3Madison County, OH
84.6
47.8
4Mercer County, OH
81.4
65.5
5Logan County, OH
81.1
56
6Auglaize County, OH
80.8
58.4
7Union County, OH
80.8
49.6
8Allen County, OH
80.7
34
9Darke County, OH
80.6
62.4
10Champaign County, OH
79.8
49.2
11Marion County, OH
79.4
36.5
12Franklin County, OH
79.2
41.9
13Pickaway County, OH
78.9
41.7
14Shelby County, OH
78.9
47.9
15Hancock County, OH
75.3
46.4
16Wyandot County, OH
75.2
67.1
17Fayette County, OH
75.1
40.4
18Preble County, OH
75
57.4
19Clinton County, OH
74.9
46.8
20Crawford County, OH
74.8
48.5
21Delaware County, OH
74.8
38.6
22Butler County, OH
74.4
36.2
23Montgomery County, OH
73.8
29.3
24Greene County, OH
73.7
37.9
25Seneca County, OH
73.5
54.2
26Miami County, OH
73.3
45.8
27Sandusky County, OH
71.9
55.5
28Van Wert County, OH
71.8
54.9
29Ross County, OH
71
38
30Morrow County, OH
70.9
51.7
31Huron County, OH
70.4
56.9
32Fairfield County, OH
70
39.9
33Wayne County, OH
69.3
45
34Clermont County, OH
69
45.9
35Warren County, OH
68.5
47.3
36Williams County, OH
67.6
58.5
37Lucas County, OH
67.5
24.8
38Wood County, OH
67.4
51.1
39Brown County, OH
67.1
58.4
40Medina County, OH
67.1
53.9
41Ottawa County, OH
66.3
59.6
42Licking County, OH
65.8
37.9
43Fulton County, OH
65.3
49.8
44Geauga County, OH
65.3
55.7
45Paulding County, OH
64.6
57.1
46Trumbull County, OH
63.9
39.3
47Defiance County, OH
63.4
55.5
48Hamilton County, OH
63.1
30.8
49Putnam County, OH
63
65.2
50Richland County, OH
62.7
37.8
51Summit County, OH
62.5
33.7
52Cuyahoga County, OH
60.7
30.4
53Pike County, OH
60.6
50.9
54Ashland County, OH
60.5
52.8
55Scioto County, OH
60.5
43.7
56Belmont County, OH
60.1
58.5
57Guernsey County, OH
59.9
52.2
58Ashtabula County, OH
59.6
46.5
59Lorain County, OH
59.6
41.7
60Perry County, OH
59.5
59.4
61Noble County, OH
59.4
70.4
62Muskingum County, OH
59.3
42.1
63Erie County, OH
59.2
47.4
64Portage County, OH
59.2
42.8
65Henry County, OH
58.9
53.4
66Highland County, OH
58.8
53.4
67Lake County, OH
58.5
49.4
68Washington County, OH
58.3
49.9
69Monroe County, OH
58.2
64.8
70Knox County, OH
58.1
53.7
71Adams County, OH
57.7
55.6
72Columbiana County, OH
57.7
53.1
73Stark County, OH
57.1
38
74Mahoning County, OH
56.8
38.6
75Holmes County, OH
56.1
56.3
76Meigs County, OH
55.4
51.3
77Coshocton County, OH
55.3
52.8
78Athens County, OH
54.9
41.4
79Harrison County, OH
54.7
54.6
80Jefferson County, OH
54.5
47.8
81Morgan County, OH
53.1
52.5
82Carroll County, OH
52.9
56.7
83Hocking County, OH
52.7
39.3
84Tuscarawas County, OH
52.7
47.3
85Lawrence County, OH
52.6
53.2
86Gallia County, OH
50.4
48
87Jackson County, OH
49.9
49.8
88Vinton County, OH
47.5
48.2

Data Source

Soil Quality data from SoilByCounty. See full details at SoilByCounty. Data updated February 2026.