HomeMichiganWashtenaw County

Mill Lake

Washtenaw County, Michigan Glacial Connected Water
141.4 acres25 ft deep1 launchRec Passport required
Mill Lake Access Map 1 launch
Depth Map → Click markers for details
Boat Launches on Mill Lake
Mill Lake Boat Launch
Waterloo State Recreation Area (PRD) · Unimproved ramp, 1 lane, 4 trailer spots
Open Motorboat Kayak Rec Passport
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Connected Waterways

Mill Lake is a glacial kettle lake in the Waterloo State Recreation Area. It's part of the broader network of small lakes in this glacial landscape of Washtenaw County, near Green Lake, Crooked Lake, and Sugarloaf Lake. Mill Creek serves as both inflow and outflow, connecting downstream to Prairie Creek and ultimately the larger watershed.

Winter & Ice Safety

Mill Lake is a small glacial lake in southern Michigan and typically freezes solidly in winter. Ice fishing is possible, though it's not a major ice fishing destination. Always verify ice thickness — 4 inches of clear ice minimum for foot travel.

Frequently Asked Questions
Are motors allowed on Mill Lake?
No — Mill Lake is a no-motor lake. It's best suited for kayaks, canoes, paddleboards, and other non-motorized watercraft. Reviewers note that the rule is occasionally ignored, but it's enforced as no-motor.
Where is Mill Lake in Michigan?
Mill Lake is in Washtenaw County, in the Waterloo State Recreation Area between Ann Arbor and Jackson. It's roughly a 30-minute drive west of Ann Arbor.
Is there a boat launch on Mill Lake?
Yes, there's one launch on Mill Lake. It's well-rated (4.7 stars) and suitable for carry-in watercraft like kayaks and canoes given the no-motor restriction.
Are there campgrounds near Mill Lake?
Several options are nearby within the Waterloo State Recreation Area, including Green Lake Rustic Campground, Sugarloaf Lake Campground, and Crooked Lake Rustic Campground. Mill Lake Cabins offer a roof-over-head option right at the lake.
Can you swim in Mill Lake?
The no-motor status keeps the water cleaner and calmer than many southern Michigan lakes, and the lake is used for family recreation. There's no designated public beach that we're aware of, but conditions are generally favorable for swimming.
Is Mill Lake good for kayaking?
Yes — the no-motor rule makes it one of the better paddling lakes in the Waterloo area. It's calm, comfortable for beginners, and you won't be dodging boat wakes.
Can you ice fish on Mill Lake?
Mill Lake is a smaller glacial lake in southern Michigan, so it typically freezes in winter. Ice fishing is possible, though the lake is better known as a paddling and relaxation spot. Always check ice thickness before heading out.
Do you need a pass to launch at Mill Lake?
Mill Lake is within the Waterloo State Recreation Area, so a Michigan Recreation Passport (available when you renew your vehicle registration) is likely required for access. It's $17/year for Michigan residents.
Scout's Notes
Lake Vibe & Fishing Intel

Mill Lake is a small, quiet lake in Washtenaw County — part of the broader Waterloo State Recreation Area landscape of kettle lakes and rolling glacial terrain between Ann Arbor and Jackson. It's a no-motor lake, which keeps things peaceful and makes it a natural fit for kayaking, canoeing, and paddleboarding. The single launch has a loyal following — one reviewer has been coming for 35 years. Nearby lakes like Green Lake, Sugarloaf Lake, and Crooked Lake offer additional options if you want to lake-hop through the recreation area.

The glacial origins are typical for this part of southern Michigan — kettle lakes formed by retreating ice sheets, generally modest in size and depth. Mill Lake's no-wake, no-motor status means cleaner water and less shoreline erosion, which benefits both swimmers and the fishery. The Waterloo Recreation Area surroundings provide campgrounds and cabin rentals within easy reach, making it a solid base for a quiet weekend close to the Ann Arbor–Jackson corridor.

Sources: Wikipedia, Google Reviews, DNR data, campground & beach reviews, ShorelineScout enrichment