Landslide Risk in Wisconsin
All Wisconsin counties ranked by FEMA National Risk Index landslide score
Landslide risk — downhill movement of rock, soil, and debris on unstable slopes — is rated for 72 of 72 Wisconsin counties in FEMA's National Risk Index. Vernon County carries the state's highest landslide score at 99.0, with $992K in expected annual landslide losses.
1 Wisconsin county is rated High or Very High for landslide, and expected annual losses from landslide total roughly $2M statewide. The full ranking below links to each county's complete 18-hazard risk profile.
County Rankings — Landslide
| # | County | Landslide Score | Rating | Ann. Freq. | Ann. Loss |
|---|---|---|---|---|---|
| 1 | Vernon County | High | 1.17 / yr | $992K | |
| 2 | Richland County | Medium | 0.80 / yr | $150K | |
| 3 | Crawford County | Medium | 0.96 / yr | $169K | |
| 4 | Grant County | Medium | 1.20 / yr | $140K | |
| 5 | Monroe County | Medium | 0.54 / yr | $73K | |
| 6 | La Crosse County | Medium | 0.46 / yr | $101K | |
| 7 | Iowa County | Medium | 0.79 / yr | $99K | |
| 8 | Buffalo County | Medium | 0.75 / yr | $80K | |
| 9 | Trempealeau County | Medium | 0.72 / yr | $58K | |
| 10 | Dane County | Medium | 0.45 / yr | $67K | |
| 11 | Sauk County | Medium | 0.47 / yr | $51K | |
| 12 | Jackson County | Low | 0.33 / yr | $27K | |
| 13 | Green County | Low | 0.31 / yr | $34K | |
| 14 | Dunn County | Low | 0.39 / yr | $37K | |
| 15 | Pierce County | Low | 0.27 / yr | $27K | |
| 16 | Juneau County | Low | 0.18 / yr | $14K | |
| 17 | Lafayette County | Low | 0.30 / yr | $17K | |
| 18 | Eau Claire County | Low | 0.20 / yr | $13K | |
| 19 | Pepin County | Low | 0.14 / yr | $9K | |
| 20 | Columbia County | Low | 0.16 / yr | $9K | |
| 21 | St. Croix County | Low | 0.13 / yr | $8K | |
| 22 | Chippewa County | Low | 0.22 / yr | $5K | |
| 23 | Walworth County | Low | 0.12 / yr | $5K | |
| 24 | Dodge County | Low | 0.16 / yr | $4K | |
| 25 | Oconto County | Low | 0.20 / yr | $3K | |
| 26 | Waukesha County | Low | 0.12 / yr | $6K | |
| 27 | Waupaca County | Very Low | 0.15 / yr | $3K | |
| 28 | Washington County | Very Low | 0.11 / yr | $5K | |
| 29 | Shawano County | Very Low | 0.20 / yr | $3K | |
| 30 | Rock County | Very Low | 0.13 / yr | $3K | |
| 31 | Marathon County | Very Low | 0.21 / yr | $3K | |
| 32 | Jefferson County | Very Low | 0.11 / yr | $3K | |
| 33 | Brown County | Very Low | 0.10 / yr | $3K | |
| 34 | Fond du Lac County | Very Low | 0.12 / yr | $2K | |
| 35 | Waushara County | Very Low | 0.12 / yr | $2K | |
| 36 | Adams County | Very Low | 0.10 / yr | $910 | |
| 37 | Portage County | Very Low | 0.13 / yr | $2K | |
| 38 | Green Lake County | Very Low | 0.06 / yr | $810 | |
| 39 | Marquette County | Very Low | 0.08 / yr | $964 | |
| 40 | Sheboygan County | Very Low | 0.10 / yr | $1K | |
| 41 | Clark County | Very Low | 0.15 / yr | $641 | |
| 42 | Manitowoc County | Very Low | 0.10 / yr | $1K | |
| 43 | Door County | Very Low | 0.06 / yr | $634 | |
| 44 | Outagamie County | Very Low | 0.08 / yr | $729 | |
| 45 | Racine County | Very Low | 0.05 / yr | $478 | |
| 46 | Milwaukee County | Very Low | 0.05 / yr | $290 | |
| 47 | Wood County | Very Low | 0.09 / yr | $300 | |
| 48 | Kewaunee County | Very Low | 0.05 / yr | $332 | |
| 49 | Kenosha County | Very Low | 0.04 / yr | $261 | |
| 50 | Bayfield County | Very Low | 0.60 / yr | $183 | |
| 51 | Calumet County | Very Low | 0.04 / yr | $346 | |
| 52 | Vilas County | Very Low | 0.35 / yr | $119 | |
| 53 | Winnebago County | Very Low | 0.05 / yr | $157 | |
| 54 | Oneida County | Very Low | 0.34 / yr | $117 | |
| 55 | Polk County | Very Low | 0.26 / yr | $107 | |
| 56 | Marinette County | Very Low | 0.34 / yr | $93 | |
| 57 | Washburn County | Very Low | 0.31 / yr | $89 | |
| 58 | Sawyer County | Very Low | 0.29 / yr | $61 | |
| 59 | Barron County | Very Low | 0.21 / yr | $76 | |
| 60 | Douglas County | Very Low | 0.28 / yr | $81 | |
| 61 | Burnett County | Very Low | 0.19 / yr | $54 | |
| 62 | Ozaukee County | Very Low | 0.04 / yr | $135 | |
| 63 | Forest County | Very Low | 0.27 / yr | $42 | |
| 64 | Iron County | Very Low | 0.21 / yr | $25 | |
| 65 | Langlade County | Very Low | 0.23 / yr | $32 | |
| 66 | Lincoln County | Very Low | 0.18 / yr | $35 | |
| 67 | Ashland County | Very Low | 0.24 / yr | $25 | |
| 68 | Price County | Very Low | 0.20 / yr | $24 | |
| 69 | Florence County | Very Low | 0.15 / yr | $23 | |
| 70 | Rusk County | Very Low | 0.17 / yr | $20 | |
| 71 | Taylor County | Very Low | 0.15 / yr | $17 | |
| 72 | Menominee County | Very Low | 0.09 / yr | $5 |
72 Wisconsin counties with measurable landslide risk. See the national landslide ranking or all Wisconsin counties by overall risk.
Frequently Asked Questions
Which Wisconsin county has the highest landslide risk?
Vernon County has the highest FEMA landslide risk score in Wisconsin at 99.0 (High), with $992K in expected annual losses and about 1.17 events per year.
How many Wisconsin counties face significant landslide risk?
72 Wisconsin counties record measurable landslide risk in FEMA's National Risk Index; 1 of them are rated High or Very High.