| Zip Code | City | Population ↓ |
|---|---|---|
| 32177 | Palatka | 25,645 |
| 32148 | Interlachen | 12,063 |
| 32112 | Crescent City | 8,214 |
| 32666 | Melrose | 6,662 |
| 32189 | Satsuma | 5,593 |
| 32131 | East Palatka | 5,078 |
| 32181 | Pomona Park | 2,377 |
| 32140 | Florahome | 1,479 |
| 32147 | Hollister | 1,353 |
| 32193 | Welaka | 1,236 |
| 32187 | San Mateo | 1,191 |
| 32139 | Georgetown | 981 |
| 32157 | Lake Como | 639 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 13 ZCTAs in Putnam County, Florida (US Census).