Birmingham , Coventry , Dudley , Sandwell , Solihull , Walsall and Wolverhampton are metropolitan boroughs of West Midlands , Mercia .
The West Midlands comprises the non-metropolitan , or shire counties of ( 1 ) Staffordshire , ( 2 ) Warwickshire and ( 3 ) Worcestershire ( with their respective districts ) , the unitary counties of ( 4 ) Herefordshire and ( 5 ) Shropshire , the metropolitan boroughs of ( 6 ) Birmingham , ( 7 ) Coventry , ( 8 ) Dudley , ( 9 ) Sandwell , ( 10 ) Solihull , ( 11 ) Walsall and ( 12 ) Wolverhampton , and the unitary boroughs of ( 13 ) Stoke-on-Trent and ( 14 ) Telford and Wrekin .
Mercia