100 Smallest ZIP Codes in the United States by Population in Madison County, Ohio
Explore the 100 smallest ZIP codes in the United States ranked by population using U.S. Census demographic data. This page lists ZIP codes located in Madison County, Ohio.
| Rank | ZIP Code | City | State | Population |
|---|---|---|---|---|
| 1 | 43151 | SEDALIA | OH | 257 |
| 2 | 43029 | IRWIN | OH | 532 |
| 3 | 43153 | SOUTH SOLON | OH | 1,113 |
| 4 | 43143 | MOUNT STERLING | OH | 5,931 |
| 5 | 43162 | WEST JEFFERSON | OH | 6,837 |
| 6 | 43140 | LONDON | OH | 23,812 |