Steelhead Trout vs Salmon: Taste, Nutrition, Price & Which to Buy

Steelhead trout vs salmon comes down to one fact: steelhead is not a salmon. It is a rainbow trout (Oncorhynchus mykiss) that spent one to three years at sea, and on the plate it eats like a milder, slightly leaner Atlantic salmon with the same orange flesh. Buy steelhead when you want salmon’s texture without its full richness; buy sockeye or king when you want the strongest salmon flavor.

Most recipes treat the two as interchangeable. What actually separates them is flavor intensity, fat, price and where the fish was raised.

Steelhead vs salmon at a glance

	Steelhead trout	Atlantic salmon (farmed)	Sockeye salmon (wild)
Species	Oncorhynchus mykiss, the sea-run form of rainbow trout	Salmo salar	Oncorhynchus nerka
Where it lives	Hatches in rivers, feeds 1–3 years in the Pacific, returns to spawn and can survive to spawn again (NOAA, ADF&G)	Anadromous; only farmed fish reach U.S. markets, from coastal pens in Maine and Washington and from imports (NOAA)	Wild-caught in the North Pacific
Size	Averages 8–11 lb; can top 30 lb (WDFW)	8–12 lb, up to 30 lb (NOAA)	4–15 lb (NOAA)
Flavor	Mild, clean, lightly sweet; the least “salmony” of the three	“Buttery, rich taste” (NOAA)	“Rich flavor that rivals the flavor of Chinook” (NOAA)
Texture	Medium-firm, fine flake; thinner fillets than salmon	“Firm and fatty” (NOAA)	Firm, dense; reddest flesh of the wild salmon (NOAA)
Flesh color	Pink to orange, from astaxanthin in the diet or feed	“Reddish-orange or pink” (NOAA)	Bright red-orange
Price	Varies; usually sold in the same band as farmed Atlantic salmon	Varies; $13.99 per portion at Fulton Fish Market, October 2026	Varies; $15.99 per portion at the same retailer
Best cooking	Anything you do with salmon, a minute or two faster	Roast, grill, pan-sear, cure, smoke	Grill, broil, roast; easy to overcook
Nutrition per 100 g cooked (USDA)	168 kcal, 23.8 g protein, 7.4 g fat, 0.9 g EPA+DHA, 61 mg sodium (USDA farmed rainbow trout entry; USDA has no separate steelhead line)	206 kcal, 22.1 g protein, 12.4 g fat, 2.2 g EPA+DHA, 61 mg sodium	156 kcal, 26.5 g protein, 5.6 g fat, 0.9 g EPA+DHA, 92 mg sodium

Is steelhead a salmon?

No. Steelhead is a rainbow trout. NOAA Fisheries describes steelhead as “a unique life-history type of rainbow trout,” and the Washington Department of Fish and Wildlife says it plainly: “Steelhead and rainbow trout are the same species,” with rainbows staying in fresh water and steelhead going to sea.

Steelhead sits in the genus Oncorhynchus with the Pacific salmon, migrates to the ocean like them, and comes back silver-skinned and orange-fleshed. The biggest biological difference: NOAA notes that steelhead “do not necessarily die after spawning,” while Pacific salmon die after one run. Alaska Fish and Game puts the share of steelhead that spawn a second time at 20 to 30 percent.

Wild steelhead are mostly off the menu: NOAA lists one West Coast population as endangered and ten as threatened. Nearly every steelhead fillet in a U.S. store is farmed rainbow trout grown to salmon size, which is what the trade calls a big, orange-fleshed rainbow.

Does steelhead trout taste like salmon?

Close, but milder. Steelhead has salmon’s color and a similar medium-firm flake, with less oil on the palate and none of the assertive edge of sockeye. Ranked from mildest to richest, the common salmonids run: rainbow trout, steelhead, coho, farmed Atlantic, sockeye, king.

That order follows the published descriptions. Monterey Bay Aquarium describes rainbow trout as having “a mild, delicate taste,” and notes that farmed fish are milder and softer than wild. NOAA calls coho “delicate” in small fish and “mild” in large ones, farmed Atlantic “buttery, rich,” and sockeye rich enough to rival king. Steelhead belongs between rainbow trout and coho: more flavor than a pan-size trout because it is older and fattier, less than any salmon.

Steelhead vs rainbow trout: what’s the difference?

Same fish, different life. A rainbow trout that stays in its river matures small, with pale pink or white flesh. One that migrates to the ocean eats squid, amphipods and small fish for one to three years (ADF&G), comes back at the 8 to 11 pounds WDFW gives as the average, with orange flesh, and is called a steelhead. NOAA notes that migrating fish “typically grow larger.”

The same split applies in the store. “Rainbow trout” means a whole fish or butterflied fillet of about a pound, often raised in Idaho raceways. “Steelhead” means the same species grown a year or two longer and cut into salmon-style fillets. Our rainbow trout taste guide covers the small fish; trout vs salmon covers the wider family.

Steelhead vs salmon nutrition: which is healthier?

Both are excellent; salmon wins on omega-3, steelhead on calories and fat. Per 100 grams cooked, USDA lists farmed rainbow trout at 168 calories and 7.4 grams of fat against farmed Atlantic salmon’s 206 calories and 12.4 grams. Protein is a wash: 23.8 grams versus 22.1.

Omega-3 is where the fat pays off. Farmed Atlantic salmon carries about 2.2 grams of EPA plus DHA per 100 grams; farmed trout about 0.9 grams, in line with wild sockeye’s 0.9 grams and below farmed coho’s 1.3 grams.

On mercury, FDA puts both “Salmon” and “Trout (freshwater)” in its “Best Choices” category, the group it recommends two to three servings a week from during pregnancy.

Why is steelhead orange like salmon?

Same pigment, same source. The orange-red color in every salmonid comes from astaxanthin, a carotenoid the fish cannot make. Wild steelhead and salmon get it from the shrimp-like amphipods and other crustaceans in their ocean diet, which is why a sea-run steelhead turns orange while its river-dwelling sibling stays pale.

Farmed fish get it from feed. Federal rules (21 CFR 73.35) allow astaxanthin in salmonid feed at up to 80 milligrams per kilogram “to enhance the pink to orange-red color of the flesh,” and require fish raised on it to be labeled. That is what a “color added” label means: the same molecule a wild fish eats, not a dye injected into the fillet.

Farmed steelhead vs farmed Atlantic salmon: price and sustainability

Steelhead is the easier sustainability call. Monterey Bay Aquarium states that “all rainbow trout (and steelhead) farmed in the U.S. is rated green” by Seafood Watch; the fish are raised in freshwater raceways, ponds and net pens, with the country’s largest farm in Idaho. Farmed Atlantic salmon ratings depend on the country and the pen system, so check the source on the label; our wild vs farmed salmon guide walks through them.

On price, the two usually sit in the same band. At Fulton Fish Market’s online store in October 2026, a farmed Atlantic salmon portion listed at $13.99, coho at $13.99, wild sockeye at $15.99 and king at $30.99, while a rainbow trout fillet was $12.99. Prices move weekly, so treat those as a ranking. Sockeye vs Atlantic salmon explains why the wild fish costs more.

Which should you buy?

You want salmon flavor at full strength: sockeye or king. Steelhead will taste polite by comparison.
You like salmon but find it heavy or “fishy”: steelhead. It gives you the color, the flake and the omega-3 with less oil.
You are cooking for people who say they don’t like salmon: steelhead, or go milder still with Arctic char. If the problem is any pink fish at all, a white fish from our mild fish chooser is the honest answer.

Cook steelhead exactly as you would salmon: skin-on, high heat, pull it when the center just turns opaque. Fish On Fire’s menu runs on Gulf grouper, mahi and shrimp rather than salmonids, so this is a fish-counter decision.

Bottom line

Steelhead is a sea-run rainbow trout, not a salmon, but it fills the same spot on the plate. Expect a milder, slightly leaner version of farmed Atlantic salmon with the same orange color, a green sustainability rating when it is U.S.-farmed, and a similar price. Choose it over salmon for mildness; choose sockeye or king over it for richness.

Steelhead Trout vs Salmon: What's the Difference?