| Zipcode | Community | City | State | Metro Area |
|---|---|---|---|---|
| 12910 | Irona | Altona | New York | Plattsburgh NY |
| 15642 | Irwin | Irwin | Pennsylvania | Pittsburgh PA |
| 29063 | Irmo | Irmo | South Carolina | Columbia SC |
| 39666 | Irene | Summit | Mississippi | McComb MS |
| 43029 | Irwin | Irwin | Ohio | Columbus OH |
| 51446 | Irwin | Irwin | Iowa | |
| 54442 | Irma | Irma | Wisconsin | Merrill WI |
| 55751 | Iron | Iron | Minnesota | Duluth MN-WI |
| 57037 | Irene | Irene | South Dakota | Vermillion SD |
| 61016 | Irene | Cherry valley | Illinois | Rockford IL |
| 64759 | Irwin | Lamar | Missouri | |
| 71457 | Irma | Natchitoches | Louisiana | Natchitoches LA |
| 76650 | Irene | Irene | Texas | |
| 79744 | Iraan | Iraan | Texas | |
| 83428 | Irwin | Irwin | Idaho | Idaho Falls ID |