Hackmatack National Wildlife Refuge

The Hackmatack National Wildlife Refuge is a newly established United States national wildlife refuge that will include noncontiguous properties, especially tallgrass prairie patches, wetland properties, and oak savanna parcels, located in the northwestern region of the Chicago metropolitan area and the southern part of the Milwaukee area.
Lake Status

Managing Dead Carp

Subdivision and lakefront properties can experience a significant die-off of carp in the spring or early summer, which can occur on other area lakes as well.

Lake Status

Newsletters

About the MPOA

Monthly newsletters will keep you up to date on the activities on and around Wonder Lake.

January 2026 newsletter

Welcome to new MPOA President Ray O’Brien 
Happy New Year all! As we say farewell to Brad Dennison, who’s stepped down, we welcome a familiar face in Ray. As a fourth generation Wonder Laker, most of Wonder Lake knows Ray and/or his family. O’Brien Shoals was named after his great grandparents and he has so many memories of ski shows, windsurfing, snowmobiling, fireworks, and having penny candy at his grandparents grocery store just to name a few.

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2026 newsletters

M.P.O.A. Bylaws

ARTICLE I  
Section 1. The name of this corporation shall be MASTER PROPERTY OWNERS’ ASSOCIATION, INC. FOR THE WONDER LAKE, ILLINOIS AREA. (Revised 9/13/2023) Section 2. This Corporation (hereinafter referred to as the M.P.O.A.) is an Illinois not for profit corporation, chartered by the Secretary of State on September 18, 1965, as provided by the General Not For Profit Act of Illinois, approved July 17, 1943, in force January 1, 1944.

About the MPOA

Wonder Lake Homeowner Associations

With the exception of property located in the Oakwood Shores and Hickory Falls #3 subdivisions, the MPOA does not collect annual dues from the individual owners of properties with deeded access to Wonder Lake. Information regarding status of annual dues and fees on any specific subdiviision properties can only be obtained from the Secretary of the subdivision where that property is located.
About the MPOA

Erosion Control: Rip Rap

In Fall 2012, the Wonder Lake Master Property Owners Association (MPOA) completed an important element of our overall lake restoration project. This work included the placement of supplemental limestone rip-rap on the upstream face of the Wonder Lake dam embankment, and the installation of rip-rap “collars” around three island areas in the southeast quadrant of the lake.
Lake Status

Wonder Lake Annual Dam Inspection Report

 

Each year the MPOA is required by the State of Illinois - Office of Water Resources to have an inspection of the Wonder Lake Dam embankment and spillway. This inspection is conducted by Professional Engineers retained by the MPOA, with state engineers also in attendance. The completed report is then forwarded to the Illinois Office of Water Resources.

Lake Status
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