Largemouth Bass: Where They Are, How to Catch Them, How Big They Get

The largemouth bass is the black bass of quiet, weedy water: native east of the Rockies, stocked across the United States, and the fish in most American ponds. It holds beside cover, spawns in the shallows at about 60 °F (16 °C) and takes a soft plastic worked slowly along the bottom in every month it feeds. A common adult is 16 in (41 cm) long and weighs about 2¼ lb (1 kg). A 10-pounder is a fish most anglers never hold.

George Perry caught the 22 lb 4 oz world record in a Georgia oxbow in 1932 on the only lure he and his friend had, weighed it at the post office, and his mother fried it for the family’s dinner.

How do you tell a largemouth from the other bass?

Look at the jaw. On a largemouth the upper jaw reaches well past the rear edge of the eye. On a smallmouth or a spotted bass it does not reach past the back of the eye. The other marks back that one up: a dark, blotchy stripe along the flank, a dorsal fin nearly split in two by a deep notch, and usually no rough tooth patch on the tongue, which spotted and Alabama bass have. Color is a poor guide, because Texas describes the largemouth only as “usually green with dark blotches”; the jaw is the mark to trust.

With the fish in your hand, the smallmouth vs largemouth page settles it in a minute; the spotted bass page covers the third fish.

Where do largemouth bass live?

Largemouth are native from southern Quebec to Minnesota and south to the Gulf, through the Great Lakes and the Mississippi basin. Their native range also runs along the Atlantic slope from North Carolina to Florida, and along the Gulf slope from southern Florida into northern Mexico. Stocking for sport has carried them across the United States and far beyond. Texas Parks and Wildlife lists nearly all of Mexico and parts of Central and South America. Japan has had them since 1925 and now bans importing, moving or keeping them as an invasive species, which is how a Japanese lake came to produce a bass of world-record weight.

Within any of those waters, look where it is warm, weedy and still. Federal biologists find largemouth most abundant in warm, fertile, heavily vegetated lakes, rivers and reservoirs. There they concentrate around submerged structure such as logs, rocks and weed beds. Texas adds rock ledges and man-made structures to that list of cover, and notes that they prefer clear, quiet water but survive in a wide range of habitats. They even take a little salt: the Chesapeake Bay Program lists them in fresh and low-brackish water.

So to find one near you, skip the open water. Start at a pond, a lake or a slow river backwater, and fish along the weeds, fallen trees and docks. Seasons, limits and licenses differ by state and sometimes by lake; the state pages carry them.

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Florida bass or northern largemouth: what is the difference?

Two fish answer to the name. The northern largemouth is the native bass of most of the country. The Florida bass is native to peninsular Florida, grows bigger in warm water, and has been stocked far outside its range for exactly that reason. A 2022 genetic revision made them two species: Micropterus nigricans for the northern fish and M. salmoides for the Florida bass.

In the hand they look the same. A Florida bass typically has 69–73 scales along the lateral line against 59–67 on a northern fish, but the full ranges overlap. Most agencies still list them under one name and one bag limit, and only a genetic test proves which one you caught.

Anglers and agencies moved the Florida fish for its size. San Diego built Upper Otay Reservoir in 1959 as a hatchery for Florida-strain largemouth, and the city now says that “21 of the 25 largest bass in history were the progeny of the fingerlings used in that experiment.” Texas began stocking Florida bass into public waters in the early 1970s, and its state record “was broken numerous times as the Florida genes kicked in,” in the words of the state’s own magazine.

A Florida bass is no sure upgrade, though. In Boomer Lake, Oklahoma, biologists stocked Florida and northern fingerlings together in 1976. After two years about 10% of the northern fish were alive, against under 1% of the Florida fish. In another Oklahoma lake the Florida bass survived as well as the northern fish and grew faster. The same paper cites comparisons from Texas and California in which northern bass grew faster for two years and Florida bass faster after that.

On the water, pros who fish both describe the Florida fish as moodier. “They don’t like cold fronts,” Elite Series pro Chris Johnston told Bassmaster. John Crews put it shorter: “Florida bass are either on or off.”

Where are largemouth in each season?

Within a year the fish move with the water temperature, not the calendar. Florida’s FWC gives 65–80 °F (18–27 °C) as the range in which largemouth feed best. The table is Kevin VanDam’s six-season model, quoted here as his, and his spawn season runs wider than the beds themselves. Wisconsin’s DNR has males picking nest sites at 60 °F (16 °C) and eggs laid at 62–65 °F (17–18 °C), so the spawn itself runs about 60–65 °F (16–18 °C).

Largemouth normally stop feeding below about 41 °F (5 °C) and above 98.6 °F (37 °C). Between those, the spawn row is the easiest fishing of the year, and the bass water temperature page turns any thermometer reading into a depth and a lure.

How do you catch largemouth bass?

Start on the bottom. At the 2025 Bassmaster Elite event on Lake Tenkiller, six of the top ten anglers named a soft plastic on a weighted hook, Texas-rigged or punched, among their key baits. The rigs hub covers the Texas rig, the Carolina rig, the Ned rig and the drop shot that catch bass on the bottom in every season. The moving baits of pre-spawn and fall are on the chatterbait and spinnerbait hubs. Crankbaits work the ledges in summer and the jerkbait in winter, and topwater owns the post-spawn and the summer mornings.

Fish the edges of the day from late spring into fall. In a 1995 laboratory study, largemouth caught the prey they struck at more than 95% of the time in dim light, 62% by starlight and almost never in full dark. Dawn and dusk give a bass enough light to hunt and its prey too little to see it coming. The best time to fish for bass page puts hours on each season.

For tackle, a 7 ft medium-heavy casting rod with 15–20 lb fluorocarbon covers the single-hook baits. A 7 ft medium, moderate-action rod with 10–14 lb monofilament covers the treble-hooked ones. The rods and line hubs explain why. If you are starting from nothing, how to fish for bass prices one outfit and five lures that cover the year. Live shiners and the other natural baits, with the state rules on each, are on the bass bait page.

How big do largemouth bass get?

Growth depends on the length of the growing season. A Texas largemouth is 4–6 in (10–15 cm) after its first year, 8–12 in (20–30 cm) at two and 16 in (41 cm) at three, and lives 16 years on average. The longest on record was 38.2 in (97 cm) and the oldest 23 years. Northern fish grow more slowly.

Young bass hatch in five to ten days and stay in a group near the nest, under the male’s watch, for several days. After that the young often travel in schools; adults are usually solitary.

What does your bass weigh? Texas averaged 3,178 bass into a length-to-weight table, and biologists sort bass into size classes by length: quality at 12 in, preferred at 15, memorable at 20 and trophy at 25.

These are averages, so a fat fish or a thin one will miss them. Measure to the nearest eighth of an inch, as Texas advises, and remember its warning: the table is not accepted for official records and is never as accurate as a certified scale. A trophy beats the table easily: the Texas record, Barry St. Clair’s Lake Fork bass of 1992, was 25½ in (65 cm) long and weighed 18.18 lb (8.25 kg), where the table gives about 10.4 lb at that length.

Big bass are old bass. Florida biologists aged 822 bass of 10 lb or more brought to taxidermists. The mean age was 9.7 years, the youngest 4 and the oldest 16.5.

How rare is a 10-pound largemouth?

Rare even in the best state for them. Florida has run the TrophyCatch program since 2012. Anglers submit a photo or video of a bass of 8 lb (3.6 kg) or more on a scale, then release it. More than 91,000 anglers had registered by January 2026. By July 2026 the program had approved 17,166 bass: 13,568 of 8 to 9.9 lb, 3,420 of 10 to 12.9 lb and 178 of 13 lb (5.9 kg) or more. That is about 3,600 ten-pounders in fourteen years, in the state with the most of them, which is why one is a life goal for most anglers rather than a season goal. The Florida state record is 17.27 lb (7.83 kg); larger fish have been documented but never certified.

What is the biggest largemouth bass ever caught?

The all-tackle world record is 22 lb 4 oz (10.1 kg), caught by George Perry at Montgomery Lake, Georgia, in 1932. Manabu Kurita’s 22 lb 4.97 oz fish from Lake Biwa, Japan, caught in 2009, was certified as a tie in January 2010. Since the IGFA split the Florida bass from the largemouth in 2024, his fish is the all-tackle Florida bass record, and Perry’s stands alone under largemouth. Any new largemouth record now needs a genetic test, so that a Florida bass cannot be certified as one.

The heaviest bass ever weighed is on neither line. Dottie, 25 lb 1 oz (11.4 kg) from Dixon Lake, California, in 2006, was foul-hooked in the side and never submitted. The world record largemouth page tells the story of all three fish.

Are largemouth bass good to eat?

Yes. Arizona’s game and fish department calls the meat “mild tasting, white, flaky, firm and good tasting.” Still, the value of a largemouth in the United States is in catching it again. Where anglers keep them, keep the small ones. Hank Shaw, who writes on wild food for Outdoor Life, keeps no largemouth “heavier than about 3 pounds,” partly because the flake of a big fish turns coarse. The is bass good to eat page covers taste, cleaning and the size rule.

The other caution is mercury. Largemouth are top predators that accumulate it, so many states publish consumption advisories for them lake by lake, and the advice differs by water and by reader. Where there is no advisory, the FDA and EPA say to eat only one serving and no other fish that week. At Texas’s Lake Madisonville (2009), adults should eat no more than two 8-ounce servings of largemouth a month and children under 12 two 4-ounce servings; women who are nursing, pregnant or may become pregnant should eat none. At Arizona’s Apache Lake (2016), adults may eat up to 2.4 ounces (uncooked) a week and children 12 and under up to 2 ounces a month.

Massachusetts (December 2025 list) has a statewide mercury advisory. Under it, children under 12 and people who are nursing, pregnant or may become pregnant should not eat fish from a listed water the state has not yet tested for mercury. At the Quabbin and Wachusett reservoirs, children under 12 and pregnant and nursing women should eat no fish except salmon and lake trout under 24 in. All other people, in the state’s words, “should not eat smallmouth bass, largemouth bass, or lake trout greater than 24 inches long,” though they may eat unlimited salmon and lake trout under 24 in. Check the state health department page for the water you fish.

What do largemouth bass eat, and are they aggressive?

Almost anything that fits. Fry eat zooplankton and insect larvae and turn predator at about 2 in (5 cm); adults eat mostly other fish and large invertebrates such as crayfish. In 748 largemouth from DeGray Reservoir, Arkansas, fish made up 59% of the diet by weight and crayfish nearly 38%. The U.S. Fish & Wildlife Service adds frogs, snakes and mice, and notes that some largemouth eat other bass.

The limit is the mouth. In West Point Lake on the Alabama–Georgia line, the largest bluegill a bass had swallowed was about 40% of its own length and the largest shad about 50%. A 15 in bass can take a 6 in bluegill or a 7.5 in shad. The what bass eat page has the full menu by size and season.

Aggressive is the angler’s word; ambush is the biologist’s. Texas describes adults as solitary fish that hide among plants, roots or limbs to ambush prey, and federal biologists call them voracious feeders that “will consume almost any prey they can fit in their mouth and swallow whole.” That is why the lure goes beside the cover, where the bass waits, and not into open water.

When do largemouth spawn, and should you fish the beds?

The spawn explains the season table. The trigger is water of about 60 °F, as early as February in Texas and from late April to early July in Wisconsin. The male sweeps a nest in 2–8 ft of water, the female lays 2,000 to 43,000 eggs, and the eggs hatch in five to ten days. The male guards the eggs, then keeps the fry in a group near the nest for several days, and largemouth normally do not feed while they spawn. That is why spawning bass are easy to find, and why fishing for them is argued about.

The research cuts both ways. A Florida pond study found no significant difference in the number of young bass produced in fished and unfished ponds. Earlier studies found the cost: while a male is kept off his nest, sunfish and shiners eat his eggs and fry, and the more he loses, the likelier he is to abandon the nest. The practical rule that follows: keep bed fish in the water and release them where they were caught. The bass spawn page has the calendar by region.

Which states made the largemouth their state fish?

At least four, all in the South. Florida named the Florida largemouth bass its official state freshwater fish in 1975, and Mississippi made the largemouth its state fish in 1974. In Georgia, Perry’s record helped make it the official state fish, a historical marker near Montgomery Lake records. Alabama’s statute names the largemouth its official freshwater fish, then gives it the scientific name of the spotted bass, Micropterus punctulatus.

The names, if you want them

The largemouth is a sunfish, not a true bass, and the biggest of the black basses. The 2022 genetic revision renamed it Micropterus nigricans and kept the old name, M. salmoides, for the Florida bass. Older agency pages and the Florida statute still use the old names. The bass hub carries the same season pattern for all three bass you will meet.

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