Williams County, OH ZIP codes
Williams County ZIP codes by town
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
Map of Williams County ZIP codes
The ZIP codes of Williams County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Williams County in numbers
About 36,719 people live in Williams County, in 15,476 households, the 67th most populous of Ohio's 88 counties. The median household income is $61,048 a year, 14% below the Ohio median of $71,389 (US: $80,734). The median owner-occupied home is valued at $150,000 (30% below the Ohio median), and median gross rent is $791 a month. The median age is 41.6; 13.7% of adults 25 and over hold a bachelor's degree or higher (31.5% across Ohio); the average commute takes 20 minutes.
| Population | 36,719 |
|---|---|
| Households | 15,476 |
| Median age | 41.6 |
| Median household income | $61,048 |
| Median home value | $150,000 |
| Median gross rent | $791 |
| Bachelor's degree or higher | 13.7% |
| Mean commute | 19.8 min |
| Population density | 87 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Williams County
| Town | ZIP codes | Population |
|---|---|---|
| Bryan | 1 | 8,631 |
| Montpelier | 1 | 3,905 |
| Edgerton | 1 | 2,049 |
| West Unity | 1 | 1,812 |
| Stryker | 1 | 1,155 |
| Pioneer | 1 | 1,024 |
| Edon | 1 | 773 |
| Kunkle | 1 | 244 |
| Alvordton | 1 | 190 |
| Blakeslee | 1 | 73 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Williams County.
Not sure you are in Williams County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Williams County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
43501 | Alvordton , OH | Standard | 715 | $68,203 | $114,900 |
43505 | Blakeslee , OH | Standard | 71 | — | — |
43506 | Bryan , OH | Standard | 14,734 | $60,234 | $162,000 |
43517 | Edgerton , OH | Standard | 3,442 | $58,578 | $136,500 |
43518 | Edon , OH | Standard | 2,897 | $86,200 | $146,900 |
43531 | Kunkle , OH | Standard | 212 | $36,200 | $46,700 |
43543 | Montpelier , OH | Standard | 7,401 | $56,236 | $136,700 |
43554 | Pioneer , OH | Standard | 2,037 | $52,917 | $161,000 |
43557 | Stryker , OH | Standard | 3,284 | $84,950 | $158,900 |
43570 | West Unity , OH | Standard | 2,867 | $68,500 | $129,600 |
Cite this page
zipcodes.pro. “Williams County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/oh/county/williams
Underlying data is public domain or openly licensed — sources, vintages and licences.