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a lake.
Contact information
For information on Lakes in Wisconsin, contact:
Wisconsin DNR Lakes
Division of Water
Bureau of Water Quality
DNR Contacts for Delavan Lake

Delavan Lake Improvement Association [exit DNR]

Delavan Lake Sanitary District [exit DNR]

Town Of Delavan Lake Commission [exit DNR]

Find A Lake > Walworth County > Delavan Lake

Delavan Lake
Walworth County, 1906 Acres

Facts & Figures
Name Delavan Lake
Waterbody ID (WBIC) 793600
Area 1906 ACRES
Maximum Depth 52 feet
Mean Depth 21 FEET
Bottom 30% sand, 30% gravel, 0% rock, 40% muck
Waterbody Type lake
Hydrologic Lake Type DRAINAGE
County Walworth
Region SE
Latitude, Longitude 42.60454840, -88.61082880
Contour (Bathymetric) Map Contour Map
Interactive Map Interactive Map
Lake Management
Lake Organizations Delavan Lake Improvement Association [exit DNR]
Delavan Lake Sanitary District [exit DNR]
Town Of Delavan Lake Commission [exit DNR]
Beaches 1
Boat Landings 4
Boating Ordinances ** - See Details
Fish Musky, Panfish, Largemouth Bass, Smallmouth Bass, Northern Pike and Walleye
Lake Health
Invasive Species *
Banded Mystery Snail, Curly-Leaf Pondweed, Eurasian Water-Milfoil, Hybrid Eurasian / Northern Water-Milfoil, Ornamental water lilies (non-native Nymphaea sp.), Pennywort, Phragmites (non-native), Purple Loosestrife, Sacred Lotus, Zebra Mussel
Trophic Status Mesotrophic

* About Invasive Species: 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.].

** About Boating Ordinances: Before boating on an unfamiliar Wisconsin waterways check for a sign at the public boat landing to determine if there are local regulations (more restrictive than state law) which may apply on that waterbody. Also be sure to review the document Wisconsin Boating Regulations to learn about statewide regulations. There may be a delay between the time an ordinance is passed and the time it gets into our database. Therefore, the only way to know for sure if a water body has an ordinance in effect is to look for a sign posted at a public boat landing.