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

Rusty Crayfish

Select Another Location:

Total Locations: 828
Total Lakes and Rivers: 875 *

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
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WaterbodyStatusWaterbody ID Code (WBIC)CountyYear First FoundDetails
Mill Brook DS of CTH XX(#10030863)Verified769400Waukesha2018 Details
Mill Creek at Big Bend Rd(#10011470)Verified769700Waukesha2018 Details
Spring Creek at County Rd D (Station #503171)Verified and Vouchered266800Portage2016 Details
Ahnapee RiverVerified94800Door, Kewaunee  Details
Ahnapee River - at CTH H ForestvilleVerified94800Door2015 Details
Alcohol Creek - 15 m Upstream Balsam Row RdVerified Shawano2016 Details
Alder LakeVerified2329600Vilas1975 Details
Alexander LakeVerified1494600Lincoln2004 Details
Alice LakeVerified1555900Lincoln2002 Details
Allen CreekVerified883700Dane, Green, Rock  Details
Allen Creek (813300) N of Star School RoadVerified and Vouchered Jefferson2021 Details
Allequash CreekVerified2332100Vilas2006 Details
Amherst MillpondVerified and Vouchered268200Portage2009 Details
Amik LakeVerified and Vouchered  2019 Details
Amik Lake Verified2268600Vilas2019 Details
Anderson LakeVerified968500Vilas2010 Details
Anderson LakeVerified458700Oconto  Details
Anne LakeVerified2754500Vilas1975 Details
Antigo Lake (Kellog Pond)Verified1441100Langlade2004 Details
Anvil LakeVerified968800Vilas1982 Details
Apple CreekVerified124100Outagamie2018 Details
Apple Creek - 30 Meters US Garrity RoadVerified124100Outagamie2015 Details
Apple Creek - CTH JVerified124100Outagamie2015 Details
Apple Creek - Rosin RdVerified124100Brown2015 Details
Apple Creek 280 Meters DS French RoadVerified Outagamie2015 Details
Apple RiverVerified2614000Barron, Polk  Details
Arkdale LakeVerified1374300Adams  Details
Arrowhead LakeVerified1541500Vilas1998 Details
Ashippun RiverVerified853800Dodge, Jefferson, Washington, Waukesha  Details
Ashwaubenon Creek - Grant StreetVerified Brown2015 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].