Middlesbrough Independent Councillors Association 19, Independent 4, Marton Independent 2. Principal port town on Teesside, with heavy industry; old housing is being redeveloped. The elected Mayors have been Ray Mallon (Independent), Dave Budd (Labour) and now Andy Preston (Independent).
David Smith (Coulby Newham) moved from Conservative to Independent in July 2019. Park End and Beckfield ward was held by a Middlesbrough Independent Councillors' Association candidate in a byelection on 4 July. Three councillors moved from Middlesbrough Independent Councillors Association to Independent in June 2019.
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