1921 Census of England and Wales, General Report with Appendices, Table 25 : " Density of Occupation, 1921".

  Population in Private Families having the following average numbers
of Rooms per Person, 1921.
Proportion per
1,000 population
in Private
Families, 1911.
Number. Proportion per 1,000 popu-
ulation in Private Families.
Under
.5
Rooms
per
Person.
.5 and
under
1.0
Rooms
per
Person.
Under .3. .3 and
under .5.
.5 and
under .7.
.7 and
under .10.
Under .3. .3 and
under .5.
.5 and
under .7.
.7 and
under 1.0.
ENGLAND AND WALES. 521,199 2,959,074 7,814,743 6,134,688 14 82 216 170 91 391
                     
London 129,342 554,156 1,153,139 596,499 30 131 272 141 178 409
Aggregate of C.B.s 208,976 1,101,687 2,772,363 2,104,170 17 91 230 174 94 415
Aggregate of other urban areas 130,744 870,220 2,535,832 2,157,581 11 70 205 175 74 383
Aggregate of R.D.s 52,137 433,011 1,353,409 1,276,438 7 58 180 170 66 360