Map of Ontario County Map, New York

Written and Fact-checked by | Updated On: September 17, 2025, 14:10 ET

Map of Ontario County - Ontario County is a county located in the U.S. state of New York. Ontario County Map showing cities, highways, important places and water bodies. Get Where is Ontario County located in the map, major cities in Ontario county, population, areas, and places of interest.

Map of Ontario County, New York

Map of Ontario County, New York

About Ontario County Map, New York: The map showing the county boundary, county seat, major cities, highways, water bodies and neighbouring counties.

More New NY Maps & Info

New York MapNew York County MapMap of New York With Cities
New York ZipcodesAirports in New YorkUS Zip code Map
New York Area CodesNew York Blank MapNew York River Map
US County MapNew York Road MapNew York Physical Map

About Ontario County, New York

Ontario County is a county located in the U.S. state of New York. It's county seat is Canandaigua. As per 2020 census, the population of Ontario County is 112508 people and population density is 169.95 square miles. According to the United States Census Bureau, the county has a total area of 662 sq mi (1,715 km2). Ontario County was established on 1789.

Facts about Ontario County, New York

CountryUnited States
StateNew York
RegionFinger Lakes / Western New York
County SeatCanandaigua
FoundedJanuary 27, 1789
Named ForLake Ontario
Coordinates~42.87° N, 77.33° W
Total Area~663 sq mi
Land Area~644 sq mi
Water Area~18 sq mi
Water %~2.8%
Population (2020)~112,458
Estimated Population (2024)~112,000+
Population Density~169/sq mi
Largest CityGeneva
Other Towns & CommunitiesCanandaigua, Victor, Farmington, Geneva, Phelps, Naples, Richmond
Main IndustriesAgriculture, Tourism & Wine, Services, Health Care
Major HighwaysI‑90, U.S. 20 & NY‑5, NY‑14, NY‑21, NY‑96
Time ZoneEastern Time (UTC−05:00)
Known ForFinger Lakes scenery, Canandaigua Lake, wine trails, historic sites
Websitehttps://www.co.ontario.ny.us/

Top Attractions in Ontario County, New York

  • Canandaigua Lake – Boating and lakeside recreation.
  • Sonnenberg Gardens & Mansion State Historic Park – Historic estate and gardens.
  • Finger Lakes Wine Country – Wineries and tastings.
  • Granger Homestead & Carriage Museum – Historic home and grounds.
  • Ontario County Courthouse – Historic government building.
  • Roseland Waterpark – Family water park.
  • Bristol Mountain – Skiing and scenic views.
  • Ganondagan State Historic Site – Seneca history site.
  • Canandaigua Lake State Marine Park – Waterfront park.
  • CMAC (Constellation Brands–Marvin Sands PAC) – Outdoor concert venue.
  • Ontario Pathways Rail Trail – Walking and biking trail.
  • Victor Village – Shops and dining.

Cities & Towns in Ontario County, New York

Canandaigua, Geneva, Victor, Farmington, Hopewell, Phelps, Seneca, Richmond, Manchester, Bloomfield, West Bloomfield, Naples, Gorham, South Bristol, East Bloomfield, Bloomfield Center