Pembroke is a town and community in Pembrokeshire, Wales, with a population of 7,552. The names of both the town and the county hav…Pembroke is a town and community in Pembrokeshire, Wales, with a population of 7,552. The names of both the town and the county have a common origin; both are derived from the Cantref of Penfro: Pen, 'head' or 'end', and bro, 'region', 'country', 'land', which has been interpreted to mean either 'Land's End' or 'headland'.