HomeMichiganWashtenaw County

Joslin Lake

Washtenaw County, Michigan Inland Lake Connected Water
189.7 acres20 ft deep1 launchRec Passport required
Joslin Lake Access Map 1 launch
Depth Map → 🎣 Fishing Guide → Click markers for details
Boat Launches on Joslin Lake
Joslin Lake Boat Launch
Pinckney State Recreation Area · Paved ramp, 1 lane, 16 trailer spots
Open Motorboat Kayak Large Boat Rec Passport
View ramp details →
Connected Waterways

Joslin Lake is located in the watershed between the Pinckney and Waterloo state recreation areas, an area dense with small glacial lakes including Bruin Lake, Blind Lake, and Green Lake. The broader region drains into the Huron River system via small creeks and wetlands.

Winter & Ice Safety

Joslin Lake's shallow depth means it typically freezes solidly in winter, and ice fishing for panfish is an option. As always, check ice thickness before heading out — shallow lakes can also be affected by current and springs that create thin spots.

Frequently Asked Questions
Where is Joslin Lake in Michigan?
Joslin Lake is in northwestern Washtenaw County, in the Pinckney/Unadilla Township area. It's roughly 20 miles northwest of Ann Arbor, surrounded by the Pinckney and Waterloo state recreation areas.
Is there a public boat launch on Joslin Lake?
Yes, there's one public launch on the lake. It has a strong 4.8 rating on Google. With only a single access point, the lake stays relatively uncrowded.
Can you swim in Joslin Lake?
Yes — Joslin Lake has a designated beach/swim area, and multiple reviewers highlight swimming as one of the lake's best features.
How deep is Joslin Lake?
Joslin Lake is on the shallow side. Multiple reviewers note the modest depth. The shallow profile means it warms up quickly in summer, which is good for swimming and warm-water fishing.
Are there campgrounds near Joslin Lake?
Several — Bruin Lake Modern Campground, Blind Lake Campground, and Green Lake Rustic Campground are all nearby within the Pinckney and Waterloo recreation areas. You've got both modern and rustic options within a short drive.
Is Joslin Lake good for kayaking?
Yes. The lake's small size, low boat traffic (one launch), and calm water make it well-suited for kayaking and paddleboarding. Reviewers specifically call it out as a great kayaking spot.
Scout's Notes
Lake Vibe & Fishing Intel

Joslin Lake sits in the northwest corner of Washtenaw County, tucked into the rolling terrain between Pinckney and the Waterloo-Pinckney trail corridor. It's a smaller, relatively shallow lake — residents and reviewers consistently note the modest depth — with a quiet, residential character that locals describe as a "hidden gem." The single public launch keeps boat traffic low, and the 4.8 Google rating from people who clearly love this lake says a lot. Swimming, kayaking, and panfishing are the main draws here.

The surrounding area is stacked with public land. Pinckney Recreation Area, Bruin Lake, Blind Lake, and Green Lake are all within a short drive, giving you access to miles of trails, rustic camping, and multiple other lakes. Joslin Lake itself has a designated swimming area, and the overall vibe is family-friendly and unhurried — more "generational cottage lake" than weekend-warrior destination.

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