Rainbow Trout

Close-up of a spotted rainbow trout underwater

Oncorhynchus mykiss

Rainbow trout typically have a pink band along the sides and small dark spots on a lighter body. Unlike cutthroat trout, they generally lack the orange-red slash beneath the jaw. Native to western North America and widely introduced, they occur in rivers and lakes. Ocean-migrating rainbow trout are called steelhead; freshwater residents and steelhead are the same species, not interchangeable descriptions of every population.

Cool freshwater streams, rivers and lakes. Steelhead migrate between freshwater and the ocean; resident rainbow trout remain in freshwater.

Photo credit and sources

Rainbow trout photographed underwater.

Photo: Tom Koerner/USFWS — Public domain

Species information reviewed 2026-10-16. Photos show representative fish, not fish photographed at every linked water.

Rainbow Trout Habitat & Size

Rainbow Trout (Oncorhynchus mykiss) is associated with river water and lake water in the species record. Habitat information describes the species, not permission to fish for it. The recorded average size is approximately 12 inches; individual sizes vary.

Recorded Waters for Rainbow Trout

FishFinder links Rainbow Trout to water records in Alabama, Alaska, Alberta, Arizona, Arkansas, British Columbia, California, Colorado, Connecticut, Delaware, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Manitoba, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Nova Scotia, Ohio, Oklahoma, Ontario, Oregon, Pennsylvania, Prince Edward Island, Quebec, Rhode Island, Saskatchewan, South Carolina, South Dakota, Tennessee, Texas, Utah, Virginia, Washington, West Virginia, Wisconsin, Wyoming, and Yukon. These associations may reflect documented presence, seasonal runs, or historical stocking, not angler catch reports or current abundance. Read the linked water guides and source notes for evidence dates and reaches.

Rainbow Trout Fishing Regulations & Limits

A recorded association does not establish that targeting or retaining Rainbow Trout is permitted. Confirm current species protections, seasonal and emergency closures, reach-specific rules, gear restrictions, bag and size limits with the responsible fisheries authority before fishing. A fishing license does not override these restrictions. FishFinder's regulation records may be incomplete; missing rules do not mean unrestricted fishing.

Related Water Guides for Rainbow Trout

Explore these FishFinder water guides for places where Rainbow Trout is recorded:

Equipment planning for Rainbow Trout

We have not selected a species-specific affiliate setup for this guide. First establish whether targeting is permitted at your destination; no tackle recommendation should be inferred from a species record.

Equipment guidance is not permission to fish. Confirm the exact water, date, species, method and current official rules first. A closed season prohibits targeting, even with release. Recorded fish presence does not establish an open fishery.

This is an editorial planning checklist, not hands-on product testing. Use equipment you already own when suitable. The gear directory contains affiliate links; any product suggestions below have their own disclosure. Retailer region, availability and Canadian shipping are not guaranteed.

Browse the gear directory · Find official fishing-rule sources · Affiliate disclosure

Rainbow Trout Regulations

Review available regulation records and confirm whether fishing for Rainbow Trout is permitted with the responsible fisheries authority:

Frequently Asked Questions

What water types are associated with Rainbow Trout?

The species record associates Rainbow Trout (Oncorhynchus mykiss) with river water and lake water. Habitat information is not evidence of current abundance or permission to target the species.

How big does Rainbow Trout get?

The recorded average size for Rainbow Trout is approximately 12 inches. Individual sizes vary; this average is not a maximum size or a legal retention limit.

Where does FishFinder record water associations for Rainbow Trout?

FishFinder links Rainbow Trout to water records in Alabama, Alaska, Alberta, Arizona, Arkansas, British Columbia, California, Colorado, Connecticut, Delaware, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Manitoba, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Nova Scotia, Ohio, Oklahoma, Ontario, Oregon, Pennsylvania, Prince Edward Island, Quebec, Rhode Island, Saskatchewan, South Carolina, South Dakota, Tennessee, Texas, Utah, Virginia, Washington, West Virginia, Wisconsin, Wyoming, and Yukon. These associations may reflect documented presence, seasonal runs, or historical stocking, not angler catch reports. Check the linked water guides and source notes for evidence dates and reaches; a listing does not guarantee current presence or legal fishing opportunity.

Does a listing or fishing license permit fishing for Rainbow Trout?

No. A listing records an association, not permission to target or retain Rainbow Trout. License requirements and exemptions vary. Confirm current species protections, seasonal and emergency closures, reach-specific rules, gear restrictions, bag and size limits with the responsible fisheries authority. A license does not override restrictions, and missing FishFinder regulation records do not mean unrestricted fishing.