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Most Dense in Wales

Top 100 cities ranked by most dense

Most Dense — Wales

1 Briton Ferry 11,649/mi²
2 Pyle 10,961/mi²
3 Pontypool 10,284/mi²
4 Blackwood 9,495/mi²
5 Aberystwyth 9,146/mi²
6 Bangor 7,329/mi²
7 Cardiff 6,869/mi²
8 Brynmawr 6,633/mi²
9 Clydach 5,904/mi²
10 Newport 5,703/mi²
11 Bargoed 4,859/mi²
12 Brymbo 4,574/mi²
13 Treharris 3,959/mi²
14 Abergavenny 3,672/mi²
15 Nelson 3,032/mi²
16 Porthcawl 3,031/mi²
17 Coedpoeth 2,765/mi²
18 Abergele 2,751/mi²
19 Ystalyfera 2,710/mi²
20 Pencoed 2,704/mi²
21 Ystradgynlais 2,193/mi²
22 Swansea 1,995/mi²
23 Carmarthen 1,967/mi²
24 New Inn 1,830/mi²
25 Abercynon 1,690/mi²
26 Newbridge 1,627/mi²
27 Abercarn 1,588/mi²
28 Caerleon 1,559/mi²
29 Rhondda 1,541/mi²
30 Abertillery 1,512/mi²
31 Gresford 1,427/mi²
32 Cwmafan 1,379/mi²
33 Tredegar 1,215/mi²
34 Crumlin 1,187/mi²
35 Cardigan 1,062/mi²
36 Rhymney 1,025/mi²
37 Rhoose 929/mi²
38 Cwmbran 712/mi²
39 Merthyr Tydfil 667/mi²
40 Ebbw Vale 584/mi²
41 Glyn-neath 536/mi²
42 Tonypandy 481/mi²
43 Bridgend 471/mi²
44 Coity 393/mi²
45 Wrexham 343/mi²
46 Neath 225/mi²
47 Ammanford 197/mi²
48 Penarth 181/mi²
49 Buckley 156/mi²
50 Risca 155/mi²
51 Rhyl 136/mi²
52 Pontypridd 133/mi²
53 Rhosllannerchrugog 132/mi²
54 Gelligaer 131/mi²
55 Deeside 124/mi²
56 Colwyn Bay 114/mi²
57 Llantwit Major 111/mi²
58 Gorseinon 104/mi²
59 Hawarden 99/mi²
60 Prestatyn 98/mi²
61 Aberkenfig 96/mi²
62 Blaenavon 84/mi²
63 Caerphilly 83/mi²
64 Abercanaid 77/mi²
65 Barry 76/mi²
66 Whitchurch 70/mi²
67 Llantrisant 63/mi²
68 Bedwas 62/mi²
69 Dinas Powys 60/mi²
70 Rhiwbina 57/mi²
71 Mountain Ash 49/mi²
72 Abertridwr 49/mi²
73 Llanelli 48/mi²
74 Landore 48/mi²
75 Pontarddulais 46/mi²
76 Denbigh 45/mi²
77 Llandaff 44/mi²
78 Tonyrefail 41/mi²
79 Aberdare 40/mi²
80 Mold 39/mi²
81 Hengoed 38/mi²
82 Llandudno 36/mi²
83 Flint 36/mi²
84 Beddau 36/mi²
85 Chepstow 36/mi²
86 Treorchy 36/mi²
87 Thornhill 33/mi²
88 Ferndale 32/mi²
89 Hirwaun 32/mi²
90 Holyhead 29/mi²
91 Brynna 29/mi²
92 Brynamman 28/mi²
93 Holywell 27/mi²
94 Treherbert 26/mi²
95 Porth 26/mi²
96 Pontyclun 25/mi²
97 Llanharan 25/mi²
98 Caldicot 25/mi²
99 Pentre 24/mi²
100 Broughton 23/mi²

The most densely populated cities in Wales pack the most residents per square mile, creating vibrant urban environments with walkable neighborhoods and extensive public transit. Briton Ferry leads with 11,649 people per square mile.

High population density is often associated with better access to public transportation, more walkable streets, and a wider variety of restaurants, shops, and entertainment options within close proximity. These cities tend to have lower car ownership rates and shorter commute distances.

Dense cities face unique challenges including higher housing costs, limited parking, and potential overcrowding in public spaces. However, they also tend to have lower per-capita carbon footprints due to shared infrastructure and reduced driving.

Did You Know?

  • 1. Briton Ferry has 11,649 people per square mile — that's roughly 18 people per acre.
  • 2. Dense cities tend to have the most walkable neighborhoods and lowest car ownership rates in the country.
  • 3. Urban density can reduce per-capita carbon emissions by up to 50% compared to suburban sprawl.

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