Identifiers: city · town · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Fort Wayne (city), IN | 263,886 |
| 2 | New Haven (city), IN | 15,583 |
| 3 | Auburn (city), IN | 13,412 |
| 4 | Decatur (city), IN | 9,913 |
| 5 | Columbia City (city), IN | 9,892 |
| 6 | Huntertown (town), IN | 9,141 |
| 7 | Garrett (city), IN | 6,542 |
| 8 | Leo-Cedarville (town), IN | 3,624 |
| 9 | Ossian (town), IN | 3,266 |
| 10 | Avilla (town), IN | 2,438 |
| 11 | Churubusco (town), IN | 1,870 |
| 12 | Harlan (CDP), IN | 1,577 |
| 13 | Woodburn (city), IN | 1,551 |
| 14 | Monroeville (town), IN | 1,294 |
| 15 | Grabill (town), IN | 1,112 |
| 16 | Hoagland (CDP), IN | 824 |
| 17 | Zanesville (town), IN | 580 |
| 18 | Arcola (CDP), IN | 0 |
| 19 | Coesse (CDP), IN | 0 |
| 20 | Hessen Cassel (CDP), IN | 0 |