US Freshwater Fish Guide
Identify fish species, discover the best baits, optimal water temperatures, and where to find them across all 50 states.
2 Results
Page 1 of 1 · 2 total species
Bluegill
Lepomis macrochirus
The bluegill is the most abundant and widely distributed sunfish in the United States, and the fish that introduces more children and beginn...
Largemouth Bass
Micropterus salmoides
The largemouth bass is America's most popular freshwater sport fish. Known for its aggressive strikes and powerful fights, it inhabits warm,...
🌡️ Water Temperature & Fishing Guide
🧊 Cold Water Species <65°F
Cold-water species thrive below 65°F and may become stressed or die when water warms above their threshold.
🌿 Warm Water Species 60–80°F
Most sport fish are warm-water species, active and feeding aggressively when water temperatures are between 60–80°F.
🔥 Hot Water Species >72°F
Hot-water species remain active even in summer heat when most cold and warm-water fish seek deep, cooler water.
About This Fish Guide
This comprehensive US freshwater fish guide covers the most common and popular sport fish species found in American lakes, rivers, and reservoirs. Each species profile includes detailed information on identification, habitat preferences, optimal water temperatures, proven fishing techniques, and where to find them across all 50 states.
Water temperature is one of the most critical factors determining fishing success. Fish are cold-blooded, meaning their activity levels, feeding behavior, and location in the water column are directly controlled by temperature. Use the temperature filter above to find species that are currently active based on your lake or river's current water temperature — which you can find on any water body detail page on this site.
Always ensure you have the appropriate state fishing license before fishing, and check local regulations for size and bag limits for each species. Fishing regulations vary significantly by state, water body, and season.