County Londonderry is among the six counties of Northern Ireland with a population estimate of 247,137 and an area of 2,076 km2 . It has a population density of 119  people per square kilometres. County Londonderry  Towns and Villages are listed below in order of Population. Population data is from the  census of 2011 and listed in Bold are cities in this County.

Locationn of County Londonderry Towns and Villages

Locationn of County Londonderry Towns and Villages

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TOWN/VILLAGE POPULATION STATUS
1 Derry 87,269 City
2 Coleraine 24,694 Town
3 Limavady 12,128 Town
4 Magherafelt 8,387 Town
5 Portstewart 7,825 Town
6 Altnagelvin 4,498 Town
7 Maghera 3,712 Village
8 Newbuildings 3,391 Village
9 Castledawson 3,369 Village
10 Eglinton 3,166 Village
11 Dungive 2,997 Village
12 Culmore 2,971 Village
13 Kilrea 2,732 Village
14 Ballymaguigan 2,410 Village
15 Ringsend 2,083 Village
16 BallyKelly 1,836 Village
17 Draperstown 1,638 Village
18 Draperstown 1,624 Village
19 Strathfoyle 1,591 Village
20 Moneyneany 1,375 Village
21 Moneymore 1,371 Village
22 Drumahoe 1,369 Village
23 Claudy 1,347 Village
24 Garvagh 1,291 Village
25 Castlerock 1,288 Village
26 Desertmartin 1,279 Village
27 Greysteel 1,231 Village
28 Bellaghy 1,067 Village
29 Articlave 804 Village
30 Feeny 697 Village
31 Macosquin 601 Village
32 Clady 597 Village
33 Magilligan 583 Village
34 Maydown 582 Village
35 Tobermore 581 Village
36 Coagh 547 Village
37 Swatragh 537 Village
38 Upperlands 535 Village
39 Lettershandoney 508 Village
40 Ballyronan 487 Village
41 Gulladuff 412 Village
42 Artikelly 369 Village
43 Drumsurn 359 Village
44 Glenone 321 Village
45 Ballyscullion 301 Village
46 Bellarena 297 Village
47 Foreglen 287 Village
48 Gortnahey 287 Village
49 Nixon’s Corner 218 Village
50 Ardmore 211 Village
51 Burnfoot 205 Village
52 Campsey 201 Village
53 Knockcloghrim 189 Village
54 Glack 186 Village
55 Straidarran 183 Village
56 Drummullan 179 Village
57 Derrynaflaw 169 Village
58 Culnady 147 Village
59 Curran 139 Village
60 Killywool 137 Village
61 Carrowclare 134 Village
62 Tamnaherin 128 Village
63 Tamlaght 124 Village
64 Ardgarvan 119 Village
65 Inishrush 118 Village
66 Goshedan 93 Village
67 Largy 92 Village
68 Killaloo 78 Village
69 Drumraighland 74 Village
70 Ballyrory 73 Village
71 Straw 61 Village

Also Check List of County Tyrone Towns and Villages in order of Population

Also Check List of Northern Ireland Cities, Towns and Villages by Population