BR postcode area

Columns: Postcode district | Post town | Coverage | Local authority area
BR1 | BROMLEY | Bromley , Bickley , Downham , Sundridge | Bromley , Lewisham | BR2 | BROMLEY , KESTON | Hayes , Shortlands , Bickley , Bromley Common , Keston , Leaves Green | Bromley | BR3 | BECKENHAM | Beckenham , Elmers End , Shortlands , Eden Park , Park Langley | Bromley , Lewisham , Croydon | BR4 | WEST WICKHAM | West Wickham | Bromley | BR5 | ORPINGTON | Petts Wood , St Mary Cray , St Paul 's Cray , Ruxley | Bromley | BR6 | ORPINGTON | Orpington , Locksbottom , Farnborough , Green Street Green , Chelsfield , Downe , Pratt 's Bottom , Well Hill | Bromley , Sevenoaks | BR7 | CHISLEHURST | Chislehurst , Elmstead | Bromley , Greenwich | BR8 | SWANLEY | Swanley , Hextable , Crockenhill , Swanley Village , Hockenden | Sevenoaks , Bromley , Dartford

Example questions:
Which local authority area covers both BR postcard coverage area BR1 and BR5 ? | How many districts does the BR postcard coverage area post town Bromley cover as their local authority area ? | Which BR postcard coverage has Bromley as both their post town and local authority area ? | How many districts include Bromley as a post town for BR postcard coverage area ?

Answers:
Bromley | 4 | BR1 | 2