Williamstown, OH ZIP Codes, Coordinates & Counties
Williamstown, Ohio has 1 ZIP code in Hancock county. The approximate center of Williamstown is 40.832, -83.657. Williamstown has about 564 known street addresses.
ZIP codes in Williamstown, OH
| ZIP Code | County | Latitude | Longitude |
|---|---|---|---|
| 45897 | Hancock | 40.832 | -83.657 |
Counties Williamstown spans
Hancock
Most common streets in Williamstown
College, Market, County Road 332, County Road 2
Frequently asked questions
What ZIP codes are in Williamstown, OH?
Williamstown, Ohio has 1 ZIP code, ranging from 45897 to 45897. The full list, with each ZIP's county and coordinates, is in the table on this page.
What county is Williamstown, OH in?
Williamstown is in Hancock county.
What are the latitude and longitude of Williamstown, OH?
The approximate center of Williamstown, Ohio is latitude 40.832, longitude -83.657. Coordinates for each ZIP code are listed in the table above.
How many ZIP codes does Williamstown, OH have?
Williamstown has 1 ZIP code.
How many addresses are in Williamstown, OH?
Williamstown, Ohio has about 564 known street addresses in the sthan.io US address database.
What are the most common streets in Williamstown, OH?
Some of the most common street names in Williamstown are College, Market, County Road 332, County Road 2.
What cities are near Williamstown, OH?
Cities near Williamstown include Dunkirk (3 mi), Arlington (5 mi), Dola (5 mi), Jenera (5 mi), Forest (7 mi).
Cities near Williamstown
Dunkirk, OH (3 mi) Arlington, OH (5 mi) Dola, OH (5 mi) Jenera, OH (5 mi) Forest, OH (7 mi) Mount Blanchard, OH (8 mi) Ada, OH (9 mi) Rawson, OH (10 mi)
Need this for any US address, in code?
Get the ZIP code, county, and coordinates for any US address through the sthan.io API. Free 100 requests/month, no credit card required.
View the API →Last updated: June 2026 · Data: sthan.io US address database