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Flood data for Wisconsin

Published NFIP policy and loss records, alongside a way to check the map.

Average annual premium and federal policy fee per policy unit

$999

As of 2026-08-31. A portfolio average, not a quote for a home.

Policies in force, including condo units
10,863
Cumulative recorded losses
9,522
Net dollars paid
$143,087,301

Cumulative losses in the HUDEX report through August 31, 2026. Loss counts include claims closed without payment. No annual series or first loss year is stated in this report.

Find a flood zone in Wisconsin.

U.S. addresses only. Include a ZIP for a more precise match.

County policy and loss records

Wisconsin NFIP records as of 2026-08-31
CountyPremium + fee / unitPolicy unitsRecorded losses
Milwaukee County$1,0391,4892,419
Dane County$754970326
Waukesha County$875700470
Brown County$983581391
Winnebago County$1,063484207
La Crosse County$742458217
Fond du Lac County$667450523
Ozaukee County$1,117424354
Racine County$1,008336179
Washington County$77631477
Rock County$1,773282301
Kenosha County$813217350
Marathon County$1,12120369
Outagamie County$78919886
Waupaca County$1,135190148
Jefferson County$1,400174524
Door County$61417272
Columbia County$1,421161192
Sheboygan County$1,21814150
Sauk County$1,198132208
Walworth County$69212645
Dodge County$90911645
Wood County$1,16811650
St. Croix County$90611273
Oconto County$959110136
Monroe County$1,12210999
Eau Claire County$1,0409648
Chippewa County$1,6569147
Juneau County$1,04588113
Trempealeau County$1,61584138
Marinette County$9008323
Crawford County$95581240
Grant County$1,1238085
Burnett County$1,1086838
Manitowoc County$1,1856738
Pierce County$1,34565126
Douglas County$7556321
Waushara County$8416125
Green County$1,2106035
Calumet County$7175624
Portage County$1,0505622
Vernon County$1,46456179
Dunn County$1,1635417
Sawyer County$944549
Barron County$8305111
Marquette County$8615033
Green Lake County$1,6244954
Shawano County$9974411
Washburn County$7684427
Polk County$7234320
Langlade County$7754118
Buffalo County$9694036
Jackson County$1,4163731
Kewaunee County$8983720
Adams County$1,1223631
Oneida County$976324
Lafayette County$1,6633066
Richland County$1,2042896
Iowa County$1,0862523
Pepin County$1,7782581
Bayfield County$5462320
Clark County$1,7892335
Price County$943234
Lincoln County$1,461226
Ashland County$9392111
Rusk County$9672110
Iron County$645192
Vilas County$785190
Taylor County$1,136130
Forest County$502103
Florence County$76191

State policy mix by rated zone group

These are insured policy units grouped by their rated zones, not a percentage of the state’s land or homes.

NFIP rated zone groups, 2026-08-31
Rated groupPolicy unitsShare of insured units
All A zones combined6,39258.8%
All V zones combined140.1%
Zone D10.0%
Unknown or invalid rated zone290.3%
X, B and C zones combined4,42740.8%

Largest recorded loss years

Published net claim payments from 1978 through 2026, grouped by year of loss. Dollar amounts are nominal. The 2026-09-08 OpenFEMA claims release is a separate population from the policy workbook above.

2008$34,633,2092018$19,834,1442025$17,182,0212019$8,859,7071997$8,224,225
All published years and net payments
Wisconsin claims history
Year of lossNet payments
1978$194,788
1979$928,360
1980$241,393
1981$72,414
1982$96,389
1983$123,355
1984$53,519
1985$276,312
1986$1,057,344
1987$11,628
1988$11,564
1989$159,159
1990$856,846
1991$4,548
1992$108,640
1993$2,149,132
1994$318,067
1995$378,309
1996$267,944
1997$8,224,225
1998$7,376,644
1999$255,039
2000$512,462
2001$2,465,757
2002$562,652
2003$764,484
2004$1,471,046
2005$65,141
2006$53,334
2007$3,609,497
2008$34,633,209
2009$454,829
2010$7,330,142
2011$717,961
2012$69,879
2013$1,186,177
2014$540,451
2015$189,723
2016$1,924,407
2017$5,552,702
2018$19,834,144
2019$8,859,707
2020$3,256,478
2021$216,510
2022$342,490
2023$961,435
2024$834,383
2025$17,182,021
2026$6,330,750

Records without payment are included in counts. Missing county records are retained in national controls and are not allocated to counties. OpenFEMA NFIP redacted claims V3.

Data and methodology

Complete official HUDEX report, summed across its community rows within each geocoded county FIPS. Policy Count includes condominium units under master policies. Average premium is Total Premium + Federal Policy Fee divided by Policy Count; this is an aggregate per policy unit, not a property quote. Loss counts include losses closed without payment. Total Net Dollars Paid is cumulative in this report, including the source's adjustments. The report does not specify the first loss year or split losses by year, so a starting year and annual breakdown are not inferred. Unassigned county records are retained in state totals separately. No record sampling.

Official NFIP policy and loss geography workbook

Read the full methodology and coverage limits