County Down is one of the six counties of Northern Ireland with a population  of  about 531,671 and an area of 2,451 km2 . It has a population density of 217 people per km2. County Down Towns and Villages are listed below in order of Population.  Listed in Bold are cities in this County and population data is from the  census of 2011.

Location of County Down Towns and Villages

Location of County Down Towns and Villages

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City  Population Status
1 Kilkeel 69,258 Town
2 Bangor 62,789 Town
3 Newtownards 28,654 Town
4 Newry 27,234 City
5 Dundonald 16,257 Town
6 Banbridge 14,634 Town
7 Holywood 12,657 Village
8 Downpatrick 11,012 Town
9 Ballybeen 9,318 Town
10 Comber 9,256 Town
11 Warrenpoint 7,651 Town
12 Newcastle 7,524 Town
13 Carryduff 7,123 Town
14 Donaghadee 6,926 Town
15 Ballynahinch 5,567 Town
16 Dromore 5,254 Town
17 Braniel 4,826 Town
18 Moira 4,321 Village
19 Hillsborough 3,487 Village
20 Maze 3,401 Village
21 Saintfield 3,354 Village
22 Ballygowan 3,181 Village
23 Groomsport 3,151 Village
24 Rathfriland 2,789 Village
25 Waringstown 2,562 Village
26 Portaferry 2,514 Town
27 Killyleagh 2,501 Village
28 Rostrevor 2,469 Village
29 Castlewellan 2,421 Village
30 Millisle 2,359 Village
31 Portavogie 2,154 Village
32 Ballywalter 2,123 Town
33 Annalong 2,016 Village
34 Ardglass 1,923 Village
35 Annahilt 1,922 Village
36 Crossgar 1,601 Village
37 Kilcoo 1,534 Village
38 Magheralin 1,452 Village
39 Helen’s Bay 1,412 Village
40 Drumaness 1,398 Village
41 Tullynakill 1,393 Village
42 Moneyreagh 1,380 Village
43 Ballyhornan 1,236 Village
44 Gilford 1,216 Village
45 Seahill 1,191 Village
46 Cloghy 1,165 Village
47 Kircubbin 1,162 Village
48 Donaghcloney 1,128 Village
49 Ballyhalbert 1,120 Village
50 Mayobridge 1,076 Village
51 Dundrum 1,071 Village
52 Aughnacloy 1,021 Town
53 Hilltown 997 Village
54 Carrowdore 987 Village
55 Greyabbey 987 Village
56 Killough 853 Village
57 Drumbeg 806 Village
58 Loughbrickland 684 Village
59 Lawrencetown 631 Village
60 Crawfordsburn 619 Village
61 Poyntzpass 616 Village
62 Dromara 601 Village
63 Kinallen 563 Village
64 Ravernet 563 Village
65 Killinchy 541 Village
66 Drumbo 518 Village
67 Kilmore 510 Village
68 Strangford 479 Village
69 Shrigley 456 Village
70 Brynsford 431 Village
71 Ballymartin 426 Village
72 Ballykinler 389 Village
73 Newtowncloghoge 361 Village
74 Whiterock 357 Village
75 Scarva 324 Village
76 Magheraconluce 283 Village
77 Clough 267 Village
78 Seaforde 267 Village
79 Lenaderg 264 Village
80 Edenderry 226 Village
81 Loughinisland 217 Village
82 Balloo 213 Village
83 Sheeptown 206 Village
84 Lurganare 201 Village
85 Greencastle 197 Village
86 Ballyskeagh 196 Village
87 Blackskull 173 Village
88 Attical 168 Village
89 Ballynoe 167 Town
90 Killowen 162 Village
91 Gamblestown 161 Village
92 Cabra 159 Town
93 Katesbridge 158 Village
94 Annaclone 157 Village
95 Leitrim 153 Village
96 Moneyslane 151 Village
97 Dunnaval 148 Village
98 Waringsford 137 Village
99 Burren 134 Town
100 Monteith 132 Village
101 Annsborough 131 Village
102 Ballynahatty 127 Village
103 Gilnahirk 120 Village
104 Ballydargan 119 Town
105 Ballynagarrick 118 Town
106 Conlig 116 Village
107 Ballylesson 113 Village
108 Corbet 113 Village
109 Lurganville 110 Village
110 Tullylish 107 Village
111 Hillhall 102 Village
112 Drumlough 97 Village
113 Ringhaddy 97 Village
114 Ballyhay 96 Town
115 Cultra 94 Village
116 Killinure 94 Village
117 Tievenadarragh 93 Village
118 Derryneil 92 Village
119 Gransha 91 Village
120 Spa 91 Village
121 Ballela 90 Village
122 Legacurry 83 Village
123 Ballybannan 67 Town
124 Ballymacmaine 63 Village
125 Cregagh 59 Village
126 Benraw 57 Town
127 Legananny 57 Village
128 Listooder 36 Village

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

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