22 cities and towns
| Abbreviation | 27 |
| State Population | 1,355,731 |
| # | City | Population | Median Income | Home Value | Median Rent | Median Age |
|---|---|---|---|---|---|---|
| 1 | Nagasaki | 409,118 | N/A | N/A | N/A | 49.1 |
| 2 | Sasebo | 243,223 | N/A | N/A | N/A | 49.1 |
| 3 | Isahaya | 135,546 | N/A | N/A | N/A | 49.1 |
| 4 | Ōmura | 95,397 | N/A | N/A | N/A | 49.1 |
| 5 | Obita | 45,293 | N/A | N/A | N/A | 49.1 |
| 6 | Shimabara | 43,338 | N/A | N/A | N/A | 49.1 |
| 7 | Minamishimabara | 42,330 | N/A | N/A | N/A | 49.1 |
| 8 | Unzen | 41,096 | N/A | N/A | N/A | 49.1 |
| 9 | Gotō | 34,391 | N/A | N/A | N/A | 49.1 |
| 10 | Hirado | 31,192 | N/A | N/A | N/A | 49.1 |
| 11 | Iki | 30,352 | N/A | N/A | N/A | 49.1 |
| 12 | Togitsu | 30,084 | N/A | N/A | N/A | 49.1 |
| 13 | Tsushima | 28,502 | N/A | N/A | N/A | 49.1 |
| 14 | Fukuechō | 26,636 | N/A | N/A | N/A | 49.1 |
| 15 | Saikai | 26,275 | N/A | N/A | N/A | 49.1 |
| 16 | Matsuura | 23,566 | N/A | N/A | N/A | 49.1 |
| 17 | Kamigotō | 17,503 | N/A | N/A | N/A | 49.1 |
| 18 | Shukugō | 14,291 | N/A | N/A | N/A | 49.1 |
| 19 | Furukawamen | 13,912 | N/A | N/A | N/A | 49.1 |
| 20 | Kawatana | 13,377 | N/A | N/A | N/A | 49.1 |
| 21 | Sonogishukugō | 7,721 | N/A | N/A | N/A | 49.1 |
| 22 | Ojika | 2,588 | N/A | N/A | N/A | 49.1 |