Ohio ZIP Codes: Ranges, Prefixes and Major Cities
Whether you are building an address form, cleaning a mailing list or testing shipping rules, it helps to know how ZIP codes work in Ohio. The state has 1,417 active codes spread across 88 counties.
ZIP code range and prefixes
Every Ohio ZIP code starts with one of 30 three-digit prefixes. Each prefix points to a sectional center facility, the processing plant that sorts mail for a group of nearby post offices.
- 430
- 431
- 432
- 433
- 434
- 435
- 436
- 437
- 438
- 439
- 440
- 441
- 442
- 443
- 444
- 445
- 446
- 447
- 448
- 449
- 450
- 451
- 452
- 453
- 454
- 455
- 456
- 457
- 458
- 459
Types of ZIP codes in Ohio
| Type | Count | What it covers |
|---|---|---|
| Standard | 1,009 | Street delivery areas |
| PO Box | 328 | Post office boxes only |
| Unique | 80 | A single high-volume organization |
ZIP codes for major Ohio cities
| City | County | Standard ZIPs | Range |
|---|---|---|---|
| Cincinnati | Hamilton County | 47 | 45202–45255 |
| Columbus | Franklin County | 30 | 43085–43240 |
| Cleveland | Cuyahoga County | 28 | 44102–44144 |
| Dayton | Montgomery County | 28 | 45402–45479 |
| Akron | Summit County | 17 | 44301–44333 |
| Toledo | Lucas County | 16 | 43601–43623 |
| Canton | Stark County | 12 | 44702–44721 |
| Youngstown | Mahoning County | 12 | 44502–44515 |
| Mansfield | Richland County | 6 | 44902–44907 |
| Lima | Allen County | 5 | 45801–45807 |
| Springfield | Clark County | 5 | 45502–45506 |
| Warren | Trumbull County | 4 | 44481–44485 |
| Euclid | Cuyahoga County | 3 | 44117–44132 |
| Hamilton | Butler County | 3 | 45011–45015 |
| Lorain | Lorain County | 3 | 44052–44055 |
Columbus is the state capital. Larger cities have many ZIP codes because each code follows mail delivery routes, not city limits.
Sample addresses
Thomas Thompson
667 Liberty Ct
Youngstown, OH 44502
Mary Carter
7228 Hill Rd
Hamilton, OH 45015
David Reed
4486 Sunset Ln
Columbus, OH 43203
These examples use real city and ZIP pairs with invented street lines, so they are safe for testing and documentation.
Tips for working with these ZIP codes
- Store ZIP codes as text, not numbers, so the format stays consistent across states with leading zeros.
- All of Ohio is in the Eastern time zone, which keeps scheduling logic simple.
- A quick sanity check: a valid OH ZIP code begins with one of the prefixes listed above.
- City names in addresses are post office names. A suburb may share a ZIP code and city name with a nearby larger town.
Create realistic Ohio addresses for testing, with real cities, counties and ZIP codes.
Generate Ohio addresses