Castletown, Isle of Man

Castletown Manx: Balley Chashtal
Castle Rushen seen across Castletown Harbour at low tide
Castletown Location within the Isle of Man
Population	3,206 (Isle of Man census 2021)[1]
OS grid reference	SC263675
• Douglas	8.9 miles (14 km) ENE
Parish	Malew
Sheading	Rushen
Crown dependency	Isle of Man
Post town	ISLE OF MAN
Postcode district	IM9
Dialling code	01624
Police	Isle of Man
Fire	Isle of Man
Ambulance	Isle of Man
House of Keys	Arbory, Castletown & Malew
List of places Isle of Man 54°04′26″N 4°39′14″W / 54.074°N 4.654°W / 54.074; -4.654

Castletown (Manx: Balley y Chashtal, pronounced [ˈbalʲə ˈxaʃtʃəl]) is a town in the Isle of Man, geographically within the historical parish of Malew but administered separately. Lying at the south of the island, it was the Manx capital until 1869. The centre of town is dominated by Castle Rushen, a well-preserved medieval castle, originally built for a Viking king.