100 Smallest ZIP Codes in the United States by Population in Gallia 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 Gallia County, Ohio.
| Rank | ZIP Code | City | State | Population |
|---|---|---|---|---|
| 1 | 45674 | RIO GRANDE | OH | 743 |
| 2 | 45620 | CHESHIRE | OH | 754 |
| 3 | 45685 | THURMAN | OH | 1,485 |
| 4 | 45658 | PATRIOT | OH | 2,541 |
| 5 | 45623 | CROWN CITY | OH | 3,480 |
| 6 | 45686 | VINTON | OH | 3,704 |
| 7 | 45614 | BIDWELL | OH | 5,077 |
| 8 | 45631 | GALLIPOLIS | OH | 13,061 |