Wyoming Soil Drainage Rankings

How well does the soil drain across Wyoming? We ranked every USDA survey area by the percentage of land classified as "well drained." Areas at the top of the list have soils where water moves through at a healthy rate — favorable for building, septic, and gardening. Areas at the bottom have more waterlogged or slowly-draining soils that may require engineered solutions.

The best-drained survey area is Campbell County, Wyoming, Northern Part at 99% well-drained soils. The most drainage-challenged is Goshen County, Wyoming, Northern Part at 66%.

#Survey AreaWell DrainedPoorly DrainedDominant Class
1 Campbell County, Wyoming, Northern Part 99% 0% Well drained
2 Johnson County Area, Wyoming, Northern Part 99% 0% Well drained
3 Weston County, Wyoming 99% 0% Well drained
4 Campbell County, Wyoming, Southern Part 98% 0% Well drained
5 Wind River Basin Area, Wyoming, Parts of Fremont and Hot Springs Counties 98% 1% Well drained
6 Bridger National Forest, Wyoming, Western Part 97% 2% Well drained
7 Big Horn National Forest, Wyoming, Parts of Big Horn, Johnson, Sheridan, and Washakie Counties 97% 1% Well drained
8 Johnson County, Wyoming, Southern Part 97% 0% Well drained
9 Hot Springs County Area, Wyoming 97% 1% Well drained
10 Sheridan County Area, Wyoming 97% 1% Well drained
11 Henrys Fork Area, Utah-Wyoming, Parts of: Daggett and Summit Counties, Utah and Sweetwater and Uinta Counties, Wyoming 95% 2% Well drained
12 Fremont County, Wyoming, Lander Area 95% 3% Well drained
13 Niobrara County, Wyoming 95% 0% Well drained
14 Crook County, Wyoming 95% 0% Well drained
15 Converse County, Wyoming, Northern Part 95% 0% Well drained
16 Sweetwater County Area, Wyoming 94% 0% Well drained
17 Uinta County Area, Wyoming 94% 4% Well drained
18 Laramie County, Wyoming, Western Part 94% 2% Well drained
19 Washakie County Area, Wyoming 94% 1% Well drained
20 Big Horn County Area, Wyoming 94% 3% Well drained
21 Teton National Forest, Wyoming, Parts of Teton, Fremont, Park, Sublette, and Lincoln Counties 94% 2% Well drained
22 Lincoln County Area, Wyoming, Southern Part 94% 3% Well drained
23 Fremont County, Wyoming, East Part and Dubois Area 94% 2% Well drained
24 Carbon County Area, Wyoming 93% 4% Well drained
25 Converse County, Wyoming, Southern Part 92% 0% Well drained
26 Natrona County Area, Wyoming 92% 0% Well drained
27 Albany County Area, Wyoming 91% 5% Well drained
28 Platte County, Wyoming 90% 0% Well drained
29 Medicine Bow National Forest, Wyoming, Northern Part 90% 7% Well drained
30 Shoshone National Forest, Wyoming 89% 5% Well drained
31 Laramie County, Wyoming, Eastern Part 89% 1% Well drained
32 Park County Area, Wyoming, Eastern Part 89% 2% Well drained
33 Medicine Bow National Forest, Wyoming, Central and Western Parts 89% 9% Well drained
34 Bridger National Forest, Wyoming, Eastern Part 86% 13% Well drained
35 Rockefeller Parkway, Wyoming 83% 9% Well drained
36 Sublette County Area, Wyoming 83% 11% Well drained
37 Riverton Area, Wyoming 82% 10% Well drained
38 Teton County, Wyoming, Grand Teton National Park Area 75% 19% Well drained
39 Star Valley Area, Wyoming-Idaho 73% 7% Well drained
40 Goshen County, Wyoming, Southern Part 73% 4% Well drained
41 Eden Valley Area, Wyoming, Parts of Sweetwater and Sublette Counties 71% 5% Well drained
42 Yellowstone National Park, Wyoming-Montana-Idaho 70% 3% Well drained
43 Goshen County, Wyoming, Northern Part 66% 0% Well drained