Ohio ZIP Code Map

Ohio has 1,233 ZIP code areas on this map, which places it sixth in the country behind Texas, Pennsylvania, New York, California and Illinois. The figure counts ZIP Code Tabulation Areas, the Census Bureau's drawn approximation of each ZIP code, and it is the number of shapes you can click, sort and color here. The number USPS quotes is higher, because it includes ZIP codes with no area to draw: those used only for PO boxes, those assigned to a single large building, and military mail codes. Roughly one delivery ZIP code in eight nationally has no boundary for that reason.

Ohio ZIP codes use 29 three-digit prefixes, running continuously from 430 to 458 with no gaps. It is one of the few states whose range has no holes in it at all. The first three digits identify the mail processing facility serving everything beneath them, so the prefix is a rough regional guide: 430s and 432s around Columbus, 441s Cleveland, 445s Youngstown, 452s Cincinnati, 454s Dayton and 456s the southeast. Because the block is unbroken, sorting the table by ZIP code moves through Ohio's regions in an orderly sequence rather than jumping the way it does in Texas or Florida. Twenty-nine prefixes across 1,233 ZIP areas averages about 43 codes per prefix.

Cincinnati, with 46 ZIP code areas. That puts it ahead of Columbus at 31, Dayton at 30 and Cleveland at 29, which surprises people who expect the state capital or the largest city by population to lead. ZIP code counts track delivery structure rather than population, so the ranking here is not a ranking of city size. The five biggest places together hold 12.5% of Ohio's 1,233 ZIP areas, so no single metro dominates. Akron adds 18 and Toledo 15, which keeps the state's four-corner shape visible on the map. At county level Hamilton County leads with 54 ZIP areas, just ahead of Cuyahoga at 52 and Franklin at 43.

Ohio ZIP codes run from 43001 to 45899, and unlike most states the range is complete: all 29 prefixes between 430 and 458 contain ZIP areas, with none missing. Sorting the table on this page by ZIP code therefore walks the state in a reasonably orderly way, starting in the centre near Columbus and ending in the northwest. Sorted by land area instead, the same 1,233 rows run from 349 square miles around Chillicothe down to eight thousandths of a square mile in Springfield, with a median of 22.2 square miles. The state's ZIP areas cover 40,832 square miles of land between them, spread across 88 counties.

Because a USPS ZIP code is a set of delivery stops along carrier routes, not an area, and some have no meaningful area at all. A ZIP assigned to a single office building, one used only for PO boxes at a post office counter, or a military APO or FPO code has no territory to draw, so the Census Bureau creates no ZIP Code Tabulation Area for it and it appears on no map, this one included. Nationally about 4,800 delivery ZIP codes are in that position, roughly one in eight, so Ohio's 1,233 drawn areas are fewer than the total number of Ohio ZIP codes in use.

No, and no ZIP code boundary anywhere is official. The Postal Service does not publish ZIP codes as polygons, because it does not maintain them as areas. They are routing paths. Ohio's 1,233 shapes, like those on any ZIP map anywhere, are Census Bureau ZIP Code Tabulation Areas: census blocks bundled together by the ZIP code that dominates their addresses. The fit is close in Cleveland or Cincinnati and looser across the rural southeast. Use these boundaries as a geographic reference, never as a legal one: they are not property lines, city limits, tax districts, school zones, voting districts, emergency response areas or official USPS delivery boundaries.

Yes. Open the 1,233 areas in the Ultimaps editor, color as you like, and export. Free downloads are watermarked PNGs. SVG, PDF or an unwatermarked image require Pro. What this page deliberately does not offer is a printable reference sheet with all 1,233 codes labelled, and that is a limit of scale rather than of file format: five-digit numbers cannot be placed legibly at state size when 46 of them fall inside Cincinnati alone. For a printable overview of the same geography, the three-digit prefix map is the readable version. Ohio's 29 prefixes label cleanly at any print size, and each one still tells you which processing facility an address belongs to.

Click any ZIP area on the map to select it, or open the map in the editor to work with all 1,233 at once. There you can fill areas by category (sales territories, service areas, delivery zones, franchise regions) or by value, which shades each area on a scale from a number you supply. Data keyed by ZIP code matches straight onto the map with no geocoding step. Bear in mind that 37.6% of Ohio ZIP areas cross a county line, so a territory defined by counties will not translate cleanly into one defined by ZIP codes. ZIP codes with no drawn boundary cannot be shaded, so a list containing PO-box-only or single-building codes will report them as unmatched rather than dropping them silently.