Fishing At

Grand St. Marys State Park Lake

4.0

(6)

136 Catches

Grand St. Marys State Park Lake is located in Mercer County, Ohio. Download FishAngler to find the best places to fish at Grand St. Marys State Park Lake. Get local fishing reports with detailed catch information, weather conditions, top baits and more.

Access & Amenities

40.52536, -84.475613

Explore Full Map

Recent Catches At Grand St. Marys State Park Lake

Nathan Swabb

5 weeks ago

•

Mercer County, Ohio

Species Black crappie

10 likes

Nathan Swabb

5 weeks ago

•

Auglaize County, Ohio

After multiple times fishing here at lake saint Marys I finally got one! Hopefully more to come. If anyone has some good tips for fishing here Grand St. Marys State Park Lake St Marys Ohio. Let me know! (I'm used to fishing In ponds).🤟

Species Largemouth black bass

Gear 1

6 likes

Get Ready

To Fish

with the best fishing app on the planet

Download The App

Neal Schmidt

6 weeks ago

•

Auglaize County, Ohio

Species Largemouth black bass

7 likes

Neal Schmidt

2026-04-24

•

Auglaize County, Ohio

Species Black crappie

Weight 7 oz

Gear 6

6 likes • 1 comment

Neal Schmidt

2026-04-24

•

Auglaize County, Ohio

Species Largemouth black bass

Weight 1 lb

Gear 6

4 likes

Neal Schmidt

2026-04-16

•

Auglaize County, Ohio

Species Black crappie

Weight 1 lb 1 oz

Gear 6

12 likes • 2 comments

John Sandlin

2026-04-10

•

Mercer County, Ohio

Went to Grand lake St.marys today fishing it was a bad day only caught one crappie and got to see a beautiful sunrise too.

Weight 14 oz

20 likes • 2 comments

John Sandlin

2026-04-03

•

Mercer County, Ohio

We went to Grand lake St.marys today fishing it was a bad day only caught a few crappies and saw a beautiful sunrise too.

Weight 14 oz

18 likes

Get Ready

To Fish

with the best fishing app on the planet

Download The App

Most Caught Fish Species At Grand St. Marys State Park Lake

Largemouth black bass

Popular Fishing Spots Near Grand St. Marys State Park Lake

4.0

(11)

Indian Lake

29.3 mi away • Logan County, Ohio

224 Catches

4.0

(4)

Prairie Creek Reservoir

49.5 mi away • Perry, Indiana

11.1 mi away • Shelby County, Ohio

23.2 mi away • Miami County, Ohio

34.5 mi away • Johnson, Ohio

46.4 mi away • Montgomery County, Ohio

72 Catches

No Rating (0)

Unnamed / Providence Pike - Pond

50.4 mi away • Perry, Ohio

72 Catches

5.0

(4)

Middle Fork Reservoir

49.8 mi away • Wayne, Indiana

59 Catches

Want to know more about fishing at

Grand St. Marys State Park Lake?

Download the FishAngler app to get access to advanced fishing maps, local fishing reports & forecasts. Join millions of anglers and get all the intel you need to catch more fish!