Ohio ZIP Codes

ZIP codes: 1,416
Cities & towns: 1,063
Counties: 88
Area codes: 15

How Ohio ZIP codes are numbered

430xx–459xx

The first three digits identify the sectional center facility that processes mail for a region, so an Ohio ZIP code can be placed geographically from its prefix alone. Each row names the city holding the most codes in that prefix.

Ohio three-digit ZIP prefixes, the codes in each, and the city that holds the most of them.
Prefix	ZIP codes	Main area
430xx	70	Newark
431xx	49	Groveport
432xx	44	Columbus
433xx	43	Marion
434xx	45	Bowling Green
435xx	55	Perrysburg
436xx	33	Toledo
437xx	59	Zanesville
438xx	19	Adamsville
439xx	61	Steubenville
440xx	65	Lorain
441xx	59	Cleveland
442xx	52	Cuyahoga Falls
443xx	28	Akron
444xx	58	Warren
445xx	15	Youngstown
446xx	77	Massillon
447xx	20	Canton
448xx	63	Sandusky
449xx	7	Mansfield
450xx	39	Hamilton
451xx	49	Aberdeen
452xx	70	Cincinnati
453xx	80	Miamisburg
454xx	43	Dayton
455xx	6	Springfield
456xx	69	Lucasville
457xx	52	Albany
458xx	85	Lima
459xx	1	Cincinnati

Where Ohio's communities sit

Each point is an Ohio community with a published ZIP code list, plotted from its record coordinates. The outline is the convex envelope of those points — a footprint, not a boundary.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Ohio cities by ZIP code count

largest 25

Area codes serving Ohio

Scope every ZIP code recorded in Ohio. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. The map outline is a convex envelope of published places, not a state boundary.