143,016 England 43 Middlesbrough 142,691 England Population of entire Teesside urban area is 396,244. 44 Blackpool 142,283 England Population of entire Blackpool Urban Area (including Fleetwood , Lytham St Annes , Poulton-le-Fylde and Thornton-Cleveleys ) is 261,088. 45 Bolton 139,403 England Excludes Farnworth , Horwich , Kearsley , Westhoughton and other