Population105,488 (July 1, 2025 Census estimate)
River Country, College Towns, and Wild Places
St. Lawrence County, New YorkExplore a New York county shaped by the St. Lawrence River, Seaway, college towns, Adirondack wilderness, border communities, and North Country industry. Canton and nearby communities provide the services, food, culture, and local traditions that anchor daily life, while parks, historic sites, and scenic routes reveal a broader regional story. Whether you are planning a day trip, researching a move, or looking for useful local contacts, this guide brings the county’s places, resources, and practical information together in one starting point.
St. Lawrence County at a Glance
Population105,488 (July 1, 2025 Census estimate)
County SeatCanton
Largest MunicipalityMassena (town)
Established1802
ZIP Codes47 ZIP Codes serving the county
Total AreaApproximately 2,821.2 square miles, including water
Major RoutesUS 11 • NY 37 • NY 56 • NY 68 • NY 3 • NY 812
Area Code315 / 518 / 680 / 838Meet Local Businesses
Support the businesses that help make our communities thrive. From family-owned shops and restaurants to trusted local services, discover businesses worth visiting throughout the county.

St. Lawrence County
Created in 1802, St. Lawrence County is New York’s largest county by land area and stretches from the St. Lawrence River deep into Adirondack country. Canton is the county seat, while Massena, Ogdensburg, Potsdam, Gouverneur, and smaller communities serve a vast rural region. The river and Seaway shaped transportation and industry, colleges brought a strong educational presence, and forests, lakes, and rivers remain central to recreation and the county’s North Country identity.
Visitors can explore riverfront parks, art museums, university communities, state parks, waterfalls, and Adirondack trails. Ogdensburg, Massena, Potsdam, and Canton provide dining, shopping, culture, health care, and services, while the southern part of the county opens into quieter forest and lake country. International bridges, major highways, colleges, industry, agriculture, and outdoor tourism combine to make the county unusually varied across a very large geographic area.
What Shapes Us
Seaway Heritage
The St. Lawrence River, international crossings, shipping, power generation, and river communities connect the county to continental trade and border history.
College Towns
Clarkson, St. Lawrence University, SUNY Potsdam, and SUNY Canton bring education, culture, research, athletics, and year-round activity to the county.
Wild North Country
Adirondack forests, lakes, rivers, waterfalls, and state lands create extensive opportunities for paddling, hiking, fishing, camping, and winter recreation.
St. Lawrence County
Our County — Our Stories
Massena weighs school shake-up as enrollment shrinks - WWNY
Massena weighs school shake-up as enrollment shrinks WWNY
Read the Story Oct 6, 2026 • 2 min readAround St. Lawrence County
Stories from every corner of St. Lawrence County.
Massena weighs school shake-up as enrollment shrinks - WWNY
Massena weighs school shake-up as enrollment shrinks WWNY
Oct 6, 2026 • 2 min read
Ogdensburg police: Woman struck victim with truck during argument, fled scene - WWNY
Ogdensburg police: Woman struck victim with truck during argument, fled scene WWNY
Oct 6, 2026 • 2 min read
Ogdensburg remembers Preston Carlisle - WWNY
Ogdensburg remembers Preston Carlisle WWNY
Oct 6, 2026 • 2 min read
Empire State Development and New York Department of State Announce Ribbon Cutting for Nature’s Storehouse Expansion in Canton | Empire State Development - Empire State Development (.gov)
Empire State Development and New York Department of State Announce Ribbon Cutting for Nature’s Storehouse Expansion in Canton…
Oct 6, 2026 • 2 min read
Ogdensburg attorney Preston Carlisle dies at age 96 - Yahoo
Ogdensburg attorney Preston Carlisle dies at age 96 Yahoo
Oct 6, 2026 • 2 min readMeet Local Businesses
Support the businesses that help make our communities thrive. From family-owned shops and restaurants to trusted local services, discover businesses worth visiting throughout the county.
Everything You Need. All in One Place.
From public services and schools to health care, trails, transportation, and everyday essentials, use these verified St. Lawrence County resources to find organizations that serve residents and visitors.
Government
St. Lawrence County Government
Official county departments, public services, notices, and contacts.
Official Website
New York Local Government Portal
State links to local-government information and services.
Official Website
NY Department of State — Local Government Services
Training and technical resources for local governments and communities.
Official Website
New York Committee on Open Government
Freedom of Information Law and Open Meetings Law guidance.
Official Website
New York Property Tax Resources
Official property-tax, assessment, and exemption information.
Official Website
Schools
St. Lawrence County BOCES / regional education service
Regional public education programs, services, and district support.
Official Website
Canton area public schools
Local public-school district information, calendars, and family resources.
Official Website
Local college or higher-education resource
Programs, admissions, workforce training, and community education.
Official Website
Additional higher-education resource
College programs, events, and community resources.
Official Website
Additional higher-education resource
College programs, events, and community resources.
Official Website
Hospitals
Regional hospital / health system 1
Hospital, emergency, specialty, or outpatient health services serving the region.
Official Website
Regional hospital / health system 2
Hospital, emergency, specialty, or outpatient health services serving the region.
Official Website
St. Lawrence County Public Health
County public-health programs, notices, and community services.
Official Website
New York Health Profiles
Official state profiles for hospitals, nursing homes, and other health facilities.
Official Website
New York State Department of Health
State health guidance, programs, and public information.
Official Website
Public Safety
St. Lawrence County Public Safety / Sheriff
County public-safety contacts, departments, and alerts.
Official Website
New York State Police
State Police information, contacts, and public-safety resources.
Official Website
NY-Alert
Official New York emergency alert and notification system.
Official Website
New York State DHSES
State homeland security and emergency-services guidance.
Official Website
511NY
Official travel conditions, incidents, closures, and traffic information.
Official Website
Emergency Services
St. Lawrence County Emergency Services
County emergency-management, 911, and response information.
Official Website
New York State DHSES
State emergency-management information and preparedness resources.
Official Website
NY-Alert
Official emergency alerts and public notifications.
Official Website
FEMA
Federal disaster preparedness, assistance, and recovery information.
Official Website
American Red Cross — New York
Disaster response, preparedness, shelters, and assistance.
Official Website
State Parks
Higley Flow State Park
A major county-area outdoor destination for recreation and seasonal activities.
Official Website
Robert Moses State Park
Another verified outdoor destination serving county residents and visitors.
Official Website
New York State Parks
Official park pages, alerts, maps, and visitor information.
Official Website
New York DEC Places to Go
Official state lands, forests, wildlife areas, and recreation destinations.
Official Website
New York State Camping Reservations
Official camping and facility reservations for participating state parks.
Official Website
Trails
Higley Flow State Park
Trail, park, or outdoor access information for a signature local destination.
Official Website
Robert Moses State Park
Local outdoor access with hiking, walking, or related recreation.
Official Website
Cranberry Lake Wild Forest
Additional county-area outdoor access and recreation.
Official Website
New York DEC Hiking
Official state hiking guidance, trail information, and safety resources.
Official Website
Empire State Trail
Statewide trail information and route planning.
Official Website
Utilities
National Grid
Electric and gas service, outage reporting, and account resources where applicable.
Official Website
NYSEG
Electric and gas utility information and outage resources where applicable.
Official Website
Central Hudson
Utility and outage resources where applicable in the Hudson Valley service area.
Official Website
New York Department of Public Service
Utility consumer information, complaint help, and regulated-service resources.
Official Website
St. Lawrence County Public Works / Utilities
County and municipal service contacts and infrastructure information.
Official Website
Libraries
Potsdam Public Library
Local public-library services, programs, collections, and community resources.
Official Website
Regional Library System
Shared library services, member-library support, and catalog resources.
Official Website
New York State Library
State library collections, research tools, and public information.
Official Website
New York Public Library Directory
Official directory of public libraries and systems across the state.
Official Website
NOVELny
State-supported online research databases available through New York libraries.
Official Website
Courts
St. Lawrence County Clerk / Records
County clerk, records, filing, and local court-related resources.
Official Website
New York State Unified Court System
Official court locations, calendars, rules, and court information.
Official Website
CourtHelp
Plain-language New York court forms and self-help information.
Official Website
WebCivil Supreme
Official New York civil case search.
Official Website
New York Court Locator
Find state courts and contact information.
Official Website
DMV
New York DMV County Offices
Find local DMV offices and county motor-vehicle services.
Official Website
New York DMV Online Transactions
Renewals, replacements, records, and other online transactions.
Official Website
Driver License Services
Official driver-license and permit information.
Official Website
Vehicle Registration
Official registration and title information.
Official Website
DMV Records
Driving records, vehicle records, and related official requests.
Official Website
Transportation
New York State Department of Transportation
State highway, construction, program, and transportation information.
Official Website
511NY
Traffic, road conditions, construction, cameras, and traveler information.
Official Website
Amtrak
Passenger rail schedules and station information where regional service is available.
Official Website
Trailways
Intercity bus schedules and service information for participating routes.
Official Website
St. Lawrence County Transportation Resources
County transit, mobility, road, and local transportation contacts.
Official Website
Postal Services
USPS Location Finder
Find post offices, collection boxes, and postal services.
Official Website
USPS ZIP Code Lookup
Confirm ZIP Codes for a specific street address.
Official Website
USPS Informed Delivery
Preview eligible mail and manage package notifications.
Official Website
USPS Hold Mail
Official temporary mail-hold service.
Official Website
USPS PO Boxes
Find and manage Post Office Box services.
Official Website
Veterans
St. Lawrence County Veterans Services
County veteran-service contacts and local assistance.
Official Website
New York State Department of Veterans’ Services
Benefits counseling, programs, and support for New York veterans.
Official Website
VA Find Locations
Find VA medical centers, clinics, benefits offices, and other services.
Official Website
Veterans Crisis Line
24/7 crisis support for veterans, service members, and families.
Official Website
Vet Centers
Community-based counseling and support for eligible veterans and families.
Official Website
Employment
St. Lawrence County Civil Service / Jobs
County employment, civil-service exams, and public-sector opportunities.
Official Website
New York Career Centers
State workforce centers, job-search help, training, and unemployment-related support.
Official Website
New York State Jobs
Official New York State employment opportunities.
Official Website
JobZone
New York job search, career planning, and training tools.
Official Website
American Job Center Finder
Federal directory for local workforce and career centers.
Official Website
We’re Here To Help.
Practical answers for living in, visiting, and exploring St. Lawrence County, New York.
Frequently Asked Questions.
Start with the questions people actually ask about St. Lawrence County — from signature attractions and outdoor access to local travel, weather, and community life.
Start with Frederic Remington Art Museum, Higley Flow State Park, and Frederic Remington Art Museum. Together they give you a quick feel for the St. Lawrence River, Seaway, college towns, Adirondack wilderness, border communities, and North Country industry. Build the day around one major stop, then leave time for a downtown, scenic road, or local meal instead of trying to cover the entire county at once.
Higley Flow State Park is the signature starting point, while Robert Moses State Park and Cranberry Lake Wild Forest give you alternatives with a different pace or landscape. Check current trail, park, and weather conditions before heading out, especially during winter, mud season, or severe-weather periods.
Good family options include Frederic Remington Art Museum, Nicandri Nature Center, and Robert Moses State Park. These choices mix hands-on learning, local character, and recreation, so you can plan around the ages and interests of your group instead of relying on a single attraction.
Begin with Frederic Remington Art Museum, then add St. Lawrence Power & Equipment Museum and Ogdensburg Riverfront. Those stops connect local architecture, transportation, community history, art, or settlement patterns with the places you see around the county today.
St. Lawrence County is served by 47 ZIP Codes under the county coverage used for this guide: 13662, 13669, 13676, 13617, 13642, 13668, 13667, 13613, 13646, 13699, 13658, 13654, 13652, 13697, 13625, 13660, 13694, 13635, 12967, 13680, 13630, 13684, 13690, 13681, 13621, 13687, 13672, 13633, 13664, 13670, 12965, 12927, 13666, 13614, 13696, 13695, 12973, 13623, 13649, 12922, 13683, 13647, 13639, 13678, 13645, 13677, 12949. For a street-level mailing address, confirm the exact code with the official USPS ZIP Code Lookup.
The main routes include US 11 • NY 37 • NY 56 • NY 68 • NY 3 • NY 812. Use 511NY for current construction, closures, incidents, and winter road conditions. In rural parts of the county, allow extra time and do not assume every community is connected by a limited-access highway.
Expect four distinct seasons. Summer is well suited to parks, water, downtown events, and longer daylight; fall brings strong foliage; winter can bring snow, ice, and changing road conditions; spring can be wet or muddy on trails. Check the county weather panel and 511NY before longer drives or outdoor plans.
Start with Stone Valley Trail, Tooley Pond Trails, and Ogdensburg Waterfront. Public trails, waterfronts, village walks, overlooks, and historic streets are often the easiest way to get a real sense of place without building the day around ticketed attractions.
Try 1844 House, Mama Lucia’s, or Sergi’s Italian Restaurant. Pair a meal with a walk in Canton or another nearby town center so the stop feels connected to the county rather than like a drive-through meal.
Yes. Put Frederic Remington Art Museum on one half-day, reserve another block for Higley Flow State Park, and use Frederic Remington Art Museum as the history anchor. Add one local meal and one town or village walk. That schedule leaves enough flexibility for weather, seasonal hours, and travel time.
The county spans river cities, college towns, agricultural areas, industrial communities, and a large Adirondack interior. Driving from the St. Lawrence River toward Cranberry Lake or Star Lake can feel like moving through several different regions in one county.
Meet Local Businesses
Support the businesses that help make our communities thrive. From family-owned shops and restaurants to trusted local services, discover businesses worth visiting throughout the county.
Find Something Fun
Top Picks for Every Kind of Day.Browse local ideas for family time, food, shopping, outdoor adventures, and free ways to enjoy St. Lawrence County.





