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48 states · 2,700 counties
Crawl space moisture, state by state
Each state page ranks its counties by soil moisture score and lists every one. The share of high and elevated counties varies enormously — Gulf and Atlantic coastal plains on one end, the arid West on the other.
- 1High 257
- 2Elevated 534
- 3Moderate 843
- 4Low 1,066
| State | Counties | High | Elevated | Median score | Wettest county |
|---|---|---|---|---|---|
| Alabama | 67 | 0 | 4 | 22 | Montgomery County (47) |
| Alaska | 2 | 0 | 0 | 36 | Yakutat City and Borough (36) |
| Arizona | 10 | 0 | 0 | 14 | Coconino County (20) |
| Arkansas | 67 | 17 | 14 | 34 | Poinsett County (76) |
| California | 48 | 0 | 0 | 18 | Sacramento County (38) |
| Colorado | 45 | 0 | 0 | 10 | Alamosa County (31) |
| Delaware | 3 | 0 | 2 | 41 | Kent County (43) |
| District of Columbia | 1 | 0 | 0 | 9 | District of Columbia (9) |
| Florida | 67 | 36 | 16 | 62 | Hendry County (77) |
| Georgia | 59 | 5 | 4 | 15 | McIntosh County (77) |
| Idaho | 33 | 0 | 0 | 12 | Benewah County (25) |
| Illinois | 102 | 14 | 53 | 49 | Ford County (71) |
| Indiana | 92 | 20 | 37 | 44 | Adams County (73) |
| Iowa | 99 | 12 | 49 | 47 | Pocahontas County (66) |
| Kansas | 105 | 0 | 23 | 13 | Crawford County (59) |
| Kentucky | 49 | 0 | 3 | 15 | Fulton County (47) |
| Louisiana | 64 | 35 | 19 | 62 | Cameron Parish (87) |
| Maine | 10 | 0 | 8 | 46 | Piscataquis County (54) |
| Maryland | 23 | 3 | 2 | 28 | Worcester County (63) |
| Massachusetts | 12 | 0 | 1 | 26 | Bristol County (40) |
| Michigan | 79 | 9 | 27 | 37 | Bay County (72) |
| Minnesota | 87 | 17 | 45 | 47 | Koochiching County (73) |
| Mississippi | 82 | 10 | 19 | 35 | Humphreys County (86) |
| Missouri | 113 | 15 | 39 | 39 | Audrain County (80) |
| Montana | 41 | 0 | 0 | 13 | Sweet Grass County (21) |
| Nebraska | 93 | 0 | 4 | 10 | Gage County (49) |
| Nevada | 18 | 0 | 0 | 21 | Churchill County (25) |
| New Hampshire | 8 | 0 | 0 | 23 | Coos County (34) |
| New Jersey | 21 | 0 | 3 | 30 | Cape May County (53) |
| New Mexico | 28 | 0 | 0 | 13 | Lincoln County (17) |
| New York | 62 | 1 | 26 | 39 | Niagara County (60) |
| North Carolina | 100 | 16 | 15 | 17 | Currituck County (75) |
| North Dakota | 53 | 0 | 9 | 24 | Pembina County (56) |
| Ohio | 88 | 30 | 22 | 46 | Paulding County (80) |
| Oklahoma | 77 | 0 | 11 | 17 | Coal County (51) |
| Oregon | 34 | 0 | 0 | 18 | Klamath County (27) |
| Pennsylvania | 67 | 3 | 9 | 25 | Mercer County (65) |
| South Carolina | 46 | 7 | 11 | 25 | Beaufort County (67) |
| South Dakota | 60 | 0 | 0 | 23 | Clay County (37) |
| Tennessee | 88 | 1 | 8 | 12 | Dyer County (63) |
| Texas | 209 | 4 | 18 | 18 | Chambers County (72) |
| Utah | 18 | 0 | 1 | 16 | Tooele County (43) |
| Vermont | 14 | 1 | 3 | 35 | Essex County (60) |
| Virginia | 95 | 1 | 9 | 12 | Chesapeake City (73) |
| Washington | 36 | 0 | 0 | 12 | Island County (39) |
| West Virginia | 30 | 0 | 0 | 11 | Marshall County (27) |
| Wisconsin | 72 | 0 | 20 | 33 | Taylor County (59) |
| Wyoming | 23 | 0 | 0 | 14 | Big Horn County (18) |
States missing: those whose soil survey areas do not resolve to single counties in the data used (see methodology).
Source: USDA NRCS SSURGO via Soil Data Access (muaggatt: drclassdcd, hydgrpdcd, flodfreqdcd, pondfreqprs, wtdepannmin), acreage-weighted. Checked 2026-10-23.