1911 Census of England and Wales, General Report with Appendices, Table 86: " Towns with Highest and Lowest Proportions of Population living under Various Conditions of Room Accommodation".

One person or less per room. Over one but not over
two persons per room.
More than two persons per room. In tenements of more than
10 rooms.
Town. Per
1,000
popu-
lation.
Town. Per
1,000
popu-
lation.
Town. Per
1,000
popu-
lation.
Town. Per
1,000
popu-
lation.
Highest.   Highest.   Highest.   Highest.  
Ilford 680 St. Helens 540 Gateshead 337 Blackpool 165
Handsworth 667 Wigan 528 South Shields 329 Bournemouth 162
Gillingham 662 Stoke-on-Trent 522 Sunderland 326 Eastboume 155
Leicester 658 Warrington 512 Newcastle-upon-Tyne 317 Ealing 144
Ipswich 653 Rhondda 507 Tynemouth 308 Bath 135
Hornsey 640 Edmonton 500 Plymouth 176 Hastings 119
    West Ham 500 St. Helens 169 Hornsey 112
Lowest.   Lowest.   Lowest.   Lowest.  
Gateshead 254 Hornsey 215 Leicester 11 Aston Manor 3
South Shields 262 Bournemouth 253 Northampton 11 East Ham 3
Newcastle-upon-Tyne 270 Blackpool 260 Ipswich 13 Smethwick 5
Sunderland 270 Ealing 269 Bournemouth 15 Rhondda 8
St. Helens 282 Handsworth 279 Burton-upon-Trent 15 West Ham 8
Tynemouth 288 Oxford 280 Handsworth 15    
Wigan 332 Bath 281 Derby 18    
WestHam 339 Southport 281