100 Smallest ZIP Codes in the United States by Population in Sullivan County, Missouri
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 Sullivan County, Missouri.
| Rank | ZIP Code | City | State | Population |
|---|---|---|---|---|
| 1 | 63566 | WINIGAN | MO | 58 |
| 2 | 63560 | POLLOCK | MO | 66 |
| 3 | 64645 | HARRIS | MO | 168 |
| 4 | 64646 | HUMPHREYS | MO | 314 |
| 5 | 64667 | NEWTOWN | MO | 345 |
| 6 | 63545 | GREEN CITY | MO | 914 |
| 7 | 63544 | GREEN CASTLE | MO | 1,071 |
| 8 | 63556 | MILAN | MO | 3,380 |