25 cities and towns
| Abbreviation | 42 |
| State Population | 399,131 |
| # | City | Population | Median Income | Home Value | Median Rent | Median Age |
|---|---|---|---|---|---|---|
| 1 | Tarakan | 249,960 | N/A | N/A | N/A | 30.2 |
| 2 | Nunukan | 67,006 | N/A | N/A | N/A | 30.2 |
| 3 | Tanjung Selor | 56,569 | N/A | N/A | N/A | 30.2 |
| 4 | Malinau | 25,596 | N/A | N/A | N/A | 30.2 |
| 5 | Tideng Pale | 0 | N/A | N/A | N/A | — |
| 6 | Sesayap | 0 | N/A | N/A | N/A | — |
| 7 | Sebuku | 0 | N/A | N/A | N/A | — |
| 8 | Salinbatu | 0 | N/A | N/A | N/A | — |
| 9 | Mensalong | 0 | N/A | N/A | N/A | — |
| 10 | Long Pujungan | 0 | N/A | N/A | N/A | — |
| 11 | Longnawang | 0 | N/A | N/A | N/A | — |
| 12 | Mentarang | 0 | N/A | N/A | N/A | — |
| 13 | Atap | 0 | N/A | N/A | N/A | — |
| 14 | Data Dian | 0 | N/A | N/A | N/A | — |
| 15 | Long Peso | 0 | N/A | N/A | N/A | — |
| 16 | Long Beluah | 0 | N/A | N/A | N/A | — |
| 17 | Long Bang | 0 | N/A | N/A | N/A | — |
| 18 | Binalawan | 0 | N/A | N/A | N/A | — |
| 19 | Long Layu | 0 | N/A | N/A | N/A | — |
| 20 | Sungaiboh | 0 | N/A | N/A | N/A | — |
| 21 | Long Loreh | 0 | N/A | N/A | N/A | — |
| 22 | Sekatak Bengara | 0 | N/A | N/A | N/A | — |
| 23 | Tanjung Palas | 0 | N/A | N/A | N/A | — |
| 24 | Kerangagung | 0 | N/A | N/A | N/A | — |
| 25 | Kayan Hulu | 0 | N/A | N/A | N/A | — |