1911 Census of England and Wales, General Report with Appendices, Table 77: " Tenements of Various Sizes per 1,000 Total Tenements; Population in Tenements of Various Sizes per 1,000 Total Population; and Average Numbers of Occupants per Room in the Principal Cities of the United Kingdom".

Number of
Rooms per
Tenement.
London Edin-
burgh.
Glasgow. Dublin. Belfast. Liver-
pool.
Man-
chester.
Birming-
ham.
1 Tenements 134 94 200 339 6 54 18 10
  Population 59 56 132 229 3 23 7 4
  Average Occupants 1.92 2.71 3.18 3.31 2.23 2.09 1.79 1.64
2 Tenements 190 316 462 210 41 74 35 21
  Population 149 296 469 194 26 50 22 13
  Average Occupants 1.71 2.16 2.43 2.26 1.59 1.68 1.44 1.39
3 Tenements 213 219 189 105 50 132 97 305
  Population 200 217 205 106 42 122 86 277
  Average Occupants 1.37 1.52 1.73 1.64 1.40 1.51 1.39 1.43
4 Tenements 159 144 66 104 239 185 406 165
  Population 174 144 69 110 223 173 379 154
  Average Occupants 1.19 1.15 1.25 1.29 1.17 1.15 1.09 1.10
5 Tenements 91 68 28 288 227 228
  Population 107 66 28 295 240 240
  Average Occupants 1.03 0.90 0.98 1.01 1.00 0.99
6 Tenements 70 39 17 118 102 175
  Population 84 39 17 123 105 180
  Average Occupants 0.87 0.76 0.83 0.85 0.81 0.81
7 Tenements 44 27 10 63 50 43
  Population 51 27 10 68 55 47
  Average Occupants 0.72 0.66 0.74 0.76 0.73 0.73
8 Tenements 30 23 6 34 30 25
  Population 36 24 7 40 34 27
  Average Occupants 0.65 0.58 0.68 0.71 0.65 0.64
9 Tenements 18 18 5 17 15 9
  Population 22 20 6 20 17 10
  Average Occupants 0.59 0.55 0.62   0.62 0.59 0.59
10 or more Tenements 41 50 15 27 15 15
  Population 59 66 19 33 18 19
Non-private Tenements 10 2 2 8 5 4
  Population 59 45 38 53 37 29
Totals Tenements 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000
  Population 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000
  Average Occupants
(1-9 rooms)
1.14 1.33 1.92 1.03 0.99 1.02