100 Smallest ZIP Codes in the United States by Population in Warren 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 Warren County, Ohio.
| Rank | ZIP Code | City | State | Population |
|---|---|---|---|---|
| 1 | 45032 | HARVEYSBURG | OH | 666 |
| 2 | 45034 | KINGS MILLS | OH | 1,007 |
| 3 | 45162 | PLEASANT PLAIN | OH | 2,449 |
| 4 | 45054 | OREGONIA | OH | 2,517 |
| 5 | 45065 | SOUTH LEBANON | OH | 6,604 |
| 6 | 45068 | WAYNESVILLE | OH | 11,947 |
| 7 | 45152 | MORROW | OH | 13,617 |
| 8 | 45066 | SPRINGBORO | OH | 26,144 |
| 9 | 45039 | MAINEVILLE | OH | 29,112 |
| 10 | 45005 | FRANKLIN | OH | 31,739 |
| 11 | 45036 | LEBANON | OH | 42,346 |
| 12 | 45040 | MASON | OH | 57,214 |