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

Purple Loosestrife

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Total Locations: 791
Total Lakes and Rivers: 492 *

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: https://dnr.wi.gov/topic/Invasives/report.html. 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
Chippewa River and Silver Birch LakeVerified Pepin  Details
HWY 35 south of HWY 48Verified Polk2010 Details
HWY 87 .3 mi N of 285th AveVerified Polk2020 Details
North Two Lake - LandingVerified1007500Oneida2016 Details
0.1 M North of Spring Valley Road and Turkey RoadVerified Dane2020 Details
0.5 M East of Spring Valley Road and Turkey RoadVerified Dane2020 Details
140m S of Anderson Ln W of Hwy NVerified902700Lafayette2018 Details
140th AveVerified Polk2021 Details
163rd St., S. of Theriault Rd Verified Chippewa2018 Details
190th street just north of Swede lake RDVerified Polk2021 Details
230th St 1/3 mi S of 280th AveVerified Polk2018 Details
230th StreetVerified and Vouchered Polk2018 Details
233rd ave and 55th streetVerified Polk2020 Details
270th ave 1/4 mile E of 228 StVerified Polk2020 Details
270th ave 1/4 mile east 228 streetVerified Polk2020 Details
270th ave 1/4 mile east of 87Verified Polk2020 Details
270th ave and 220th streetVerified Polk2020 Details
400 Bike Trail near Unnamed 5564325Verified Juneau2022 Details
560 E Applewood EdgertonVerified5038982Rock2019 Details
Allequash LakeVerified2332400Vilas2014 Details
Allouez BayVerified2751220Douglas2017 Details
Alma Boat Landing Verified721000Buffalo2018 Details
Along CTH HH (Portage Co)Verified Portage2014 Details
Alpine LakeVerified245650Waushara2013 Details
Amherst MillpondVerified268200Portage2013 Details
Amnicon LakeVerified2858100Douglas2010 Details
Annabelle LakeVerified and Vouchered  2019 Details
Apple RiverVerified2614000Polk2014 Details
Apple River FlowageVerified and Vouchered2624200Polk2014 Details
Arkdale LakeVerified1374300Adams2012 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].