Haverfordwest is the county town of Pembrokeshire, Wales, and the most populous urban area in Pembrokeshire with a population of 14,596 in 2011. It is also a community consisting of 12,042 people, making it the second most populous community in the county after Milford Haven. The suburbs include the former parish of Prendergast, Albert Town and th…Haverfordwest is the county town of Pembrokeshire, Wales, and the most populous urban area in Pembrokeshire with a population of 14,596 in 2011. It is also a community consisting of 12,042 people, making it the second most populous community in the county after Milford Haven. The suburbs include the former parish of Prendergast, Albert Town and the residential and industrial areas of Withybush.