Statistical classification of settlements
| Label | Name | Settlement population size (2001 Census) |
|---|---|---|
| Band A | Belfast Metropolitan Urban Area (BMUA) | c580,000 |
| Band B | Derry Urban Area (DUA) | c90,000 |
| Band C | Large town | 18,000 or more and under 75,000
(outside BMUA and DUA) |
| Band D | Medium town | 10,000 or more and under 18,000
(outside BMUA and DUA) |
| Band E | Small town | 4,500 or more and under 10,000
(outside BMUA and DUA) |
| Band F | Intermediate settlement | 2,250 or more and under 4,500
(outside BMUA and DUA) |
| Band G | Village | 1,000 or more and under 2,250
(outside BMUA and DUA) |
| Band H | Small village, hamlet and open countryside | Settlements of less than 1,000 people and open
countryside
(outside BMUA and DUA) |