Contact information
For information on Lakes in Wisconsin, contact:
Division of Water
Bureau of Water Quality
Aquatic Invasive Species Contacts

Zebra Mussel

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Total Locations: 333
Total Lakes and Rivers: 310 *

Disclaimer: Aquatic invasive species (AIS) records are assigned statuses of "verified", "observed", or "no longer observed" based on AIS Status Guidance. In general, "verified" populations are established and have been verified by a taxonomic expert. Populations with the "observed" status have not been verified by a taxonomic expert or do not have established populations. Populations with the "no longer observed" status include populations where a reproducing population did not establish. Our inventories are not necessarily exhaustive so it is important to report occurrences. To report new discoveries visit: See the Aquatic Invasive Species Guidance for information on how statuses are assigned. Personally identifiable information on data collection forms may be provided to requesters to the extent required by Wisconsin's Open Records Law [ss. 19.31-19.39, Wis. Stats.].

By County | By Waterbody | By Species | By Year | Open In Excel
Page 1 of 13
WaterbodyStatusWaterbody ID Code (WBIC)CountyDetails
2023 (2)
Ellwood LakeVerified   Details
Maiden LakeVerified   Details
2022 (7)
Balsam Lake ZMVerified2620600Polk Details
Bohners LakeVerified750800Racine Details
I-94 Bridge ZMVerified and Vouchered2601500St. Croix Details
Pearl LakeVerified195400Waushara Details
SCR/Mississippi ConfluenceVerified and Vouchered721000Pierce Details
Thunder LakeVerified533600Marinette Details
Turtle CreekVerified790300Walworth Details
2021 (9)
Army LakeVerified   Details
Bear LakeVerified   Details
Center LakeVerified5580576Kenosha Details
Indianhead FlowageVerified and Vouchered5006000Polk Details
Mississippi River - Black River ChannelVerified1676700La Crosse Details
Mississippi River - Winneshiek Slough and Lake WinneshiekVerified724700Crawford Details
Random LakeVerified and Vouchered30300Sheboygan Details
Upper Genesee LakeVerified788500Waukesha Details
Zebra Mussel - private residence on Fox RiverVerified117900Green Lake, Marquette Details
2020 (8)
Archibald LakeVerified417400Oconto Details
Gilas LakeVerified523300Marinette Details
Green Bay and Fox River AOCVerified117900Brown, Outagamie Details
La Motte LakeVerified339600Menominee Details
Pleasant LakeVerified106900Marquette, Waushara Details
Roberts LakeVerified378400Forest Details
School Section LakeVerified107500Marquette Details
Wolf Lake Verified614200Marinette Details
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* Total Lakes and Rivers = total unique Waterbody ID Codes (WBICs). If a waterbody, such as a small pond not in the DNR 24 K Hydrolayer, doesn't have a WBIC, it isn't currently counted in the total.

** Purple Loosestrife - DNR has only a partial list of locations. For more extensive data, visit the Great Lakes Indian and Fish Wildlife Commission (GLIFWC) website [exit DNR].

** Fish species - This web page only has a partial list of locations. For more extensive data, visit the Wisconsin Department of Natural Resources Map of Distribution of WI Fish Species [exit DNR].