Lake St. Francis, New York USA & Canada

Also known as:  Lac Saint-Francois

Welcome to the ultimate guide to Lake St. Francis — things to do, where to stay, fun facts, history, stats and more. Let’s dive in!

Topics we cover in this article:

Looking for Lake St. Francis cabins or other accommodations? Save time and use this interactive map to find, compare and book at the best rates. Or explore our comprehensive list of favorite travel partners.

All About Lake St. Francis

Lake St. Francis is part of the 2,340 mile system of locks, canals, and channels that link the Atlantic Ocean to the Great Lakes and the St. Lawrence River known as the St. Lawrence Seaway. The 31 mile long lake borders southeastern Ontario, southwestern Quebec, and northern New York State.

Lac Saint-Francois, the French translation of Lake St. Francis, is a large expansion of the St. Lawrence River that was developed into a reservoir with the building of the Moses-Saunders Hydroelectric Dam on the western end and the on eastern end by the Beauharnois Hydroelectric Dam. With its water used for electrical production and commercial transportation, Lake St. Francis plays an important in the economy of Canada and the New York region. A single ship moving through the seaway can carry as much cargo as the equivalent of 870 truckloads but at a significantly cheaper cost of fuel.

Swimming, waterskiing, jet skiing, tubing, and boating are enjoyed along the shores of Lake St. Francis by residents, visitors and tourists. With multiple marinas, yacht clubs and boat launches providing easy access to the lake, pleasure seekers must remember for safety reasons that there is buoyed channel that has been dredged the length of the lake allowing for large commercial ships to pass and to always give way to these vessels.

Lake St. Francis is an anglers’ paradise. With such a large surface area, the lake supports a diverse warm and cool water fish community. Surveys have been conducted that document over 20 different varieties of sport fish, pan fish, and coarse fish that thrive here. The most popular fish include walleye, northern pike, muskie, lake trout, large mouth bass, small mouth bass, king salmon, steelhead, brook trout, rainbow trout, speckled trout, perch, catfish, white fish and crappie.

Villages, towns and cities are located along the lake in both Canada and New York that offer real estate opportunities for lake front living and vacation rentals. These rentals include motels, spas, resorts, vacation homes, cabins, villas, campgrounds, and bed and breakfast inns. To fully enjoy the beauty and excitement of Lake St. Francis, visit several areas and a different type of overnight accommodation at each stop.

Nature lovers will want to visit the Lac Saint-Francois National Wildlife Area on the southern shore. This reserve protects the wetlands which are a habitat for Red Head Ducks and other waterfowl. It is an important stopover spot for migrating water fowl also. The Charlottenburg Marsh and Cooper Marsh are protected wetlands on the northern shore.

Electrical output, cargo transportation, angler’s paradise, boating destination, vacation getaway, lakefront home – Lake St. Francis is a multi-purpose lake. Start packing your bags and take advantage of all that it has to offer for you.

Things to Do at Lake St. Francis

  • Fishing
  • Boating
  • Swimming
  • Jet Skiing
  • Water Skiing
  • Tubing
  • Camping
  • Campground
  • Cabin Rentals
  • Wildlife Viewing

Fish Species Found at Lake St. Francis

  • Bass
  • Brook Trout
  • Catfish
  • Chinook Salmon
  • Crappie
  • Lake Trout
  • Largemouth Bass
  • Muskellunge
  • Northern Pike
  • Perch
  • Pike
  • Rainbow Trout
  • Salmon
  • Smallmouth Bass
  • Steelhead Trout
  • Trout
  • Walleye

Find Places to Stay at Lake St. Francis

If you’re considering a Lake St. Francis lake house rental or hotel, we’ve made it super easy to find the best rates and compare vacation accommodations at a glance. Save time using this interactive map below.

Recommended Sites to Book a Lake St. Francis Vacation

If you want to take a deeper dive to find waterfront lake cabins, cottages, condos, hotels or resorts, check out our favorite Lake St. Francis lodging partners.

  • VRBO – Use VRBO to find the perfect lake rental home, condo, cabin, cottage or other vacation property.
  • – One of the world’s leading digital travel companies, connects travelers to everything from cozy B&Bs to luxury resorts.
  • Expedia – Expedia is a popular online travel agency with more than 140,000 lodging properties worldwide.
  • – With more than 325,000 hotels in 19,000-plus locations, is an industry leader in online accommodations.
  • TripAdvisor – Read traveler reviews and compare prices on hotels, vacation rentals and more at TripAdvisor.
  • Trivago – Trivago helps travelers compare deals for hotels and other accommodations from a variety of booking sites.
  • KAYAK – KAYAK scours hundreds of other travel websites at once to find the best deals on hotels and other travel-related services.
  • RVshare –RVshare connects travelers interested in renting a motorhome with owners who have RVs to rent.
  • CampSpot – Campspot offers premier RV resorts, family campgrounds, cabins and glamping options across North America.

Note: These are affiliate links so we may earn a small commission if you book through them. While there is no extra cost to you, it helps provide resources to keep our site running (thank you)! You can read our full disclosure policy here.

Lake St. Francis Statistics & Helpful Links


Water Level Control: Canadian Hydrograhic

Surface Area: 67,213 acres

Normal Elevation (Full Pond): 151 feet

Average Depth: 20 feet

Water Volume: 2,269,997 acre-feet

Trophic State: Eutrophic

We strive to keep the information on LakeLubbers as accurate as possible. However, if you’ve found something in this article that needs updating, we’d certainly love to hear from you! Please fill out our Content Correction form.

Shop Lake St. Francis Gifts

Custom Lake Tumblers

Captain / First Mate Custom 20 oz Tumbler

Custom Lake T Shirt

Personalized My Boat My Rules Unisex T-Shirt

Custom Lake Coffee Mug - On Lake Time

On Lake Time Custom Coffee Mug – 11oz or 15oz


Advertise Your Lake St. Francis Business or Vacation Rental

LakeLubbers will soon offer businesses the opportunity to advertise and homeowners and property managers the ability to showcase their vacation rentals to the thousands of lake lovers searching our site daily. If you would like additional details, please contact our advertising team.


Looking for the Lake St. Francis Forum?

LakeLubbers previously offered visitors the ability to create accounts and participate in lake forums. When we overhauled the site’s content management system in 2021 we had to disable those features. We’re evaluating options and welcome your comments and feedback here. We also encourage you to join our lake-lovin’ community on Facebook, Instagram and Pinterest!

Lake St. Francis Photo Gallery

New photos coming soon!

Spread the word! Share our Lake St. Francis article with your fellow Lake Lubbers!