Ada, OH ZIP Codes, Coordinates & Counties
Ada, Ohio has 1 ZIP code in Hardin county. The approximate center of Ada is 40.777, -83.812. Ada has about 33,215 known street addresses.
ZIP codes in Ada, OH
| ZIP Code | County | Latitude | Longitude |
|---|---|---|---|
| 45810 | Hardin | 40.777 | -83.812 |
Counties Ada spans
Hardin
Most common streets in Ada
College, Lafayette, Lincoln, Johnson, Bentley, North, Reservoir, Main, Union, Gilbert
Frequently asked questions
What ZIP codes are in Ada, OH?
Ada, Ohio has 1 ZIP code, ranging from 45810 to 45810. The full list, with each ZIP's county and coordinates, is in the table on this page.
What county is Ada, OH in?
Ada is in Hardin county.
What are the latitude and longitude of Ada, OH?
The approximate center of Ada, Ohio is latitude 40.777, longitude -83.812. Coordinates for each ZIP code are listed in the table above.
How many ZIP codes does Ada, OH have?
Ada has 1 ZIP code.
How many addresses are in Ada, OH?
Ada, Ohio has about 33,215 known street addresses in the sthan.io US address database.
What are the most common streets in Ada, OH?
Some of the most common street names in Ada are College, Lafayette, Lincoln, Johnson, Bentley, North.
What cities are near Ada, OH?
Cities near Ada include Alger (6 mi), Dola (6 mi), Harrod (7 mi), Lafayette (7 mi), McGuffey (7 mi).
Cities near Ada
Alger, OH (6 mi) Dola, OH (6 mi) Harrod, OH (7 mi) Lafayette, OH (7 mi) McGuffey, OH (7 mi) Bluffton, OH (8 mi) Jenera, OH (8 mi) Beaverdam, OH (9 mi)
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View the API →Last updated: June 2026 · Data: sthan.io US address database