Ontario, WI ZIP Codes, Coordinates & Counties
Ontario, Wisconsin has 1 ZIP code in Vernon county. The approximate center of Ontario is 43.725, -90.565. Ontario has about 10,871 known street addresses.
ZIP codes in Ontario, WI
| ZIP Code | County | Latitude | Longitude |
|---|---|---|---|
| 54651 | Vernon | 43.725 | -90.565 |
Counties Ontario spans
Vernon
Most common streets in Ontario
Division, Orchard, Madison, Broad, Park, Pine, Garden, Noble, Oriole, 1st
Frequently asked questions
What ZIP codes are in Ontario, WI?
Ontario, Wisconsin has 1 ZIP code, ranging from 54651 to 54651. The full list, with each ZIP's county and coordinates, is in the table on this page.
What county is Ontario, WI in?
Ontario is in Vernon county.
What are the latitude and longitude of Ontario, WI?
The approximate center of Ontario, Wisconsin is latitude 43.725, longitude -90.565. Coordinates for each ZIP code are listed in the table above.
How many ZIP codes does Ontario, WI have?
Ontario has 1 ZIP code.
How many addresses are in Ontario, WI?
Ontario, Wisconsin has about 10,871 known street addresses in the sthan.io US address database.
What are the most common streets in Ontario, WI?
Some of the most common street names in Ontario are Division, Orchard, Madison, Broad, Park, Pine.
What cities are near Ontario, WI?
Cities near Ontario include Norwalk (8 mi), La Farge (9 mi), Wilton (9 mi), Kendall (10 mi), Cashton (11 mi).
Cities near Ontario
Norwalk, WI (8 mi) La Farge, WI (9 mi) Wilton, WI (9 mi) Kendall, WI (10 mi) Cashton, WI (11 mi) Hillsboro, WI (11 mi) Elroy, WI (14 mi) Westby, WI (15 mi)
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View the API →Last updated: June 2026 · Data: sthan.io US address database