Castletown, Dorset

• Built-Up Area: Fortuneswell
• Parish/Community: Portland
• District/Borough: Weymouth and Portland
• County: Dorset
• Region: South West

• Category: Populated Place
• Type: Suburban Area

• Latitude/Longitude: 50°34'4"N 2°26'43"W
• Eastings/Northings: 368557, 74326
• OS Grid: SY685743
• Mapcode Local: GBR PY.HCQ6
• Mapcode Global: FRA 57RK.R4L

Location and coordinates are for the approximate centre of Castletown within this administrative area. Geographic features and populated places may cross administrative borders.