Indiana ZIP codes
Indiana holds 968 ZIP codes between 46001 and 47997. The tables rank the places and counties with the most codes; the guide below decodes the numbering.
Places with the most ZIP codes in Indiana
| Place | ZIP codes |
|---|---|
| Indianapolis | 63 |
| Fort Wayne | 43 |
| Evansville | 32 |
| South Bend | 16 |
| Jeffersonville | 8 |
| Gary | 8 |
| Anderson | 8 |
| Bloomington | 8 |
| Terre Haute | 8 |
| Muncie | 7 |
| Lafayette | 6 |
| Hammond | 5 |
| Elkhart | 4 |
| Kokomo | 4 |
| Columbus | 3 |
| Jasper | 3 |
| Goshen | 3 |
| Carmel | 3 |
| Fishers | 3 |
| Noblesville | 3 |
Indiana counties by ZIP count
| County | ZIP codes |
|---|---|
| Marion | 62 |
| Allen | 54 |
| Vanderburgh | 33 |
| Lake | 32 |
| St. Joseph | 27 |
| Clark | 20 |
| Vigo | 19 |
| Hamilton | 18 |
| Madison | 17 |
| Tippecanoe | 17 |
Reading a Indiana ZIP code
Indiana holds 968 ZIP codes between 46001 and 47997, spread over 92 counties. Indianapolis leads the state with 63 codes, ahead of Fort Wayne with 43. Every code here opens with the digit 4: that opening number is the national postal region Indiana belongs to, the next two digits name the sectional center that sorts the mail, and the final two point to the local office. A ZIP+4 suffix narrows delivery to a block face. Boundaries follow carrier routes rather than city limits, which is why Indianapolis spreads across 63 codes while some rural codes cross county lines.
Source: GeoNames postal dataset (CC BY 4.0), snapshot of 2026-07-09. Counts cover standard delivery ZIPs listed for Indiana; unique and PO box codes may add to these totals.
Last updated: · Methodology and sources