In some London boroughs there is a huge discrepancy between census data and GTANA estimates of Gypsy and Irish Traveller populations

London boroughs

2008 GTANA estimate

2011 census

Bromley

Haringey

Ealing

Bexley

Newham

Greenwich

Hillingdon

Hackney

Tower Hamlets

Waltham Forest

0

1,000

2,000

3,000

4,000