Dayton Ohio ZIP Codes

Dayton holds 43 ZIP codes, spread across 2 counties.

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Dayton codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Dayton. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

Every Dayton ZIP code begins 454. Those first three digits identify the sectional center facility that processes mail for this part of Ohio. No other Ohio community draws on the 454xx range — it belongs entirely to Dayton.

Every Ohio ZIP prefix and the region it covers →

ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Dayton occupies.

• 283 Area code 283
• 326 Area code 326
• 513 Area code 513
• 937 Area code 937

Dayton Ohio area codes in full →

Straight-line distance between place reference points, not driving distance.