Pembroke Municipal Borough is a smal southwestern Wales mostly rural area in Pembrokeshire
. It lies near the south shore of the inlet known as Milford Haven
. Pembroke MB containes the hamlets of Monkton, St Mary and St. Michael.
The Milford Haven area is an area of rich coastal habitats, many of which are protected as Nature Reserves. The important sites include Skomer and Skokholm Islands and the estuary of the Pembroke River. The properties are managed by local and international conservation bodies.
The Old Town of Pembroke was built around a limestone fortress, Pembroke Castle. Harry Tudor was born in the castle.