Data · June 2026 data · 14-month trend
Wisconsin Flood Insurance Costs
Wisconsin's flood insurance cost index stood at $982 in June 2026, measured across policies newly written or renewed that month. That runs 1.9% below the national average of $1,001. That is 5.6% higher year over year. 800 policies were written or renewed statewide that month; Clark County was the priciest county at $2,959 on average.
What we measure: Average premium among policies newly written or renewed that month (NFIP transactions) — not the official in-force average. OpenFEMA transaction data is published on a lag of roughly two months; the latest period shown reflects that lag.
Key facts — June 2026
- Average premium
- $982
- Avg total cost (with fees)
- $1,297
- Change (year over year)
- +5.6%
- vs national average
- -1.9%
- Policies written or renewed
- 800
- Counties reporting
- 71
Wisconsin trend, last 14 months
Average premium among policies newly written or renewed each month. Bars scale to the highest month shown.
| Month | Avg premium | Premium relative to highest month | Avg total cost | Policies |
|---|---|---|---|---|
| May 2025 | $994 | $1,323 | 902 | |
| June 2025 | $930 | $1,238 | 804 | |
| July 2025 | $1,045 | $1,376 | 867 | |
| August 2025 | $955 | $1,266 | 944 | |
| September 2025 | $823 | $1,097 | 1,053 | |
| October 2025 | $929 | $1,236 | 970 | |
| November 2025 | $1,185 | $1,473 | 888 | |
| December 2025 | $860 | $1,122 | 943 | |
| January 2026 | $839 | $1,137 | 825 | |
| February 2026 | $948 | $1,261 | 634 | |
| March 2026 | $900 | $1,193 | 1,081 | |
| April 2026 | $900 | $1,195 | 1,099 | |
| May 2026 | $992 | $1,316 | 1,004 | |
| June 2026 | $982 | $1,297 | 800 |
County breakdown — June 2026
Sorted by average premium, highest first. Rows labeled with a FIPS code are reporting areas without a matched county name. Watch the policy count before reading much into small-county averages.
| County | Avg premium | Premium relative to highest county | Avg total cost | Policies |
|---|---|---|---|---|
| Clark County | $2,959 | $3,789 | 2 | |
| Green County | $2,649 | $3,338 | 8 | |
| Lafayette County | $2,131 | $2,586 | 2 | |
| Rock County | $2,083 | $2,563 | 21 | |
| Chippewa County | $1,614 | $2,033 | 4 | |
| Dunn County | $1,569 | $1,968 | 5 | |
| Oneida County | $1,506 | $1,849 | 1 | |
| Green Lake County | $1,492 | $1,983 | 3 | |
| Columbia County | $1,465 | $1,821 | 11 | |
| Milwaukee County | $1,381 | $1,767 | 65 | |
| Wood County | $1,354 | $1,670 | 7 | |
| Crawford County | $1,331 | $1,717 | 6 | |
| Trempealeau County | $1,286 | $1,702 | 12 | |
| Sheboygan County | $1,278 | $1,662 | 11 | |
| Monroe County | $1,271 | $1,722 | 3 | |
| Portage County | $1,259 | $1,647 | 5 | |
| Jefferson County | $1,210 | $1,575 | 12 | |
| Juneau County | $1,206 | $1,570 | 3 | |
| Racine County | $1,200 | $1,536 | 28 | |
| Marathon County | $1,169 | $1,480 | 23 | |
| Burnett County | $1,162 | $1,601 | 10 | |
| Ozaukee County | $1,160 | $1,492 | 22 | |
| Eau Claire County | $1,158 | $1,513 | 3 | |
| Ashland County | $1,144 | $1,535 | 4 | |
| Jackson County | $1,066 | $1,330 | 4 | |
| Kewaunee County | $1,051 | $1,424 | 6 | |
| Iowa County | $1,050 | $1,461 | 3 | |
| Buffalo County | $1,015 | $1,270 | 3 | |
| Lincoln County | $1,011 | $1,265 | 1 | |
| Kenosha County | $1,006 | $1,304 | 20 | |
| Brown County | $940 | $1,212 | 43 | |
| Pierce County | $940 | $1,181 | 7 | |
| Winnebago County | $901 | $1,190 | 57 | |
| St. Croix County | $868 | $1,141 | 5 | |
| Grant County | $843 | $1,217 | 9 | |
| Manitowoc County | $839 | $1,118 | 4 | |
| Vilas County | $828 | $1,273 | 2 | |
| Florence County | $818 | $1,262 | 1 | |
| Sauk County | $816 | $1,110 | 12 | |
| Price County | $814 | $1,033 | 1 | |
| Waupaca County | $809 | $1,116 | 15 | |
| Dane County | $808 | $1,088 | 43 | |
| Washington County | $803 | $1,107 | 18 | |
| Marinette County | $791 | $1,080 | 3 | |
| Waushara County | $784 | $997 | 1 | |
| Sawyer County | $783 | $1,096 | 9 | |
| Douglas County | $776 | $1,015 | 8 | |
| Marquette County | $763 | $1,029 | 4 | |
| La Crosse County | $762 | $1,063 | 27 | |
| Pepin County | $746 | $1,065 | 2 | |
| Oconto County | $740 | $1,020 | 12 | |
| Outagamie County | $733 | $974 | 12 | |
| Vernon County | $720 | $922 | 2 | |
| Adams County | $709 | $909 | 2 | |
| Dodge County | $705 | $1,000 | 7 | |
| Richland County | $687 | $1,033 | 3 | |
| Waukesha County | $663 | $904 | 55 | |
| Polk County | $638 | $985 | 7 | |
| Walworth County | $617 | $854 | 28 | |
| Door County | $612 | $917 | 22 | |
| Iron County | $610 | $867 | 6 | |
| Washburn County | $574 | $974 | 2 | |
| Calumet County | $538 | $763 | 4 | |
| Fond du Lac County | $536 | $748 | 41 | |
| Bayfield County | $518 | $909 | 3 | |
| Langlade County | $493 | $729 | 6 | |
| Rusk County | $428 | $802 | 1 | |
| Barron County | $419 | $642 | 3 | |
| Shawano County | $412 | $558 | 2 | |
| Forest County | $372 | $736 | 2 | |
| Taylor County | $267 | $387 | 1 |
Use this data
Download Wisconsin CSV (wisconsin.csv) — free to reuse with attribution. Read the full methodology for formulas, update cadence, and limitations. Source: FEMA OpenFEMA NFIP policy transaction data (NFIP Redacted Policies v3).
"Wisconsin Flood Insurance Costs." Out of the Storm News Flood Insurance Cost Index, June 2026, based on FEMA OpenFEMA NFIP policy transaction data. https://outofthestormnews.com/flood-insurance/costs/wisconsin
Related guides
Compare county data, then use the editorial guides to understand how NFIP coverage and pricing work in practice.