Oswego
Natural Lake · Kosciusko County, Indiana
Oswego is a fishing destination in Kosciusko County, in the glacial lakes district of northern Indiana. The nearest city is Warsaw. Walleye anglers will find productive fishing here. The lake supports 8 documented species including Walleye, Northern Pike, Largemouth Bass, Bluegill, Channel Catfish, and more. Use the DNR depth map to locate drop-offs, channels, and flats — last surveyed in 2017. Ice fishing is popular in winter months, while open-water season peaks from May through October. Plan your trip with the depth map and local guide listings below.
Depth Maps
Bathymetric maps from the Indiana DNR Division of Fish & Wildlife. These maps show depth contours, vegetation, and bottom structure.
Map & Directions
Get DirectionsShowing 14 nearby bait & tackle shops on the map.
Nearby Bait & Tackle
Ice Predator Outdoors
North Webster, IN
Splendor Boats of Warsaw
Warsaw, IN
★ 4.2The Lakehouse
Winona Lake, IN
★ 4.7Backcountry outdoors LLC
Wolcottville, IN
★ 4.8Bennington Pontoon Boats Main Office
Elkhart, IN
★ 3Country Bait & Tackle
Wolcottville, IN
★ 4.7Cy's Tackle Shop
Rochester, IN
★ 5Dutchman Hunting Supplies
Shipshewana, IN
★ 4.7Nearby Marinas
Fish Species
Species known to inhabit Oswego. Click any species for a full fishing guide.
Fishing Guides Near Oswego
(574) 377-8892
(260) 385-0623
(574) 268-1115
(260) 413-3250
(260) 385-0623
(708) 259-9809
Book a guided trip near Oswego. Browse verified fishing charters with instant availability on FishingBooker.
Other Lakes in Kosciusko County
Plan Your Trip to Oswego
- Weather forecast for Oswego — check wind, rain, and temperature before you go
- GPS: 41.3255°N, 85.7859°W — Get Directions
- Check the latest DNR fishing report for current conditions
- Review Indiana fishing regulations for season dates and limits
- An Indiana fishing license is required for ages 18+ — buy online at IN.gov
Data sourced from Indiana DNR Division of Fish & Wildlife. Last verified: March 18, 2026. Learn how we maintain this data.