Killingworth has a total area of about 93 sq. kms. and is elevated from the sea level by about 390 ft. The town of Killingworth is actually located in the County of Middlesex in the state of Connecticut. Schools of Killingworth are a part of the No. 17 regional school district of Connecticut. The public transportation facilities are also quite advanced in the area. Shops and the retail sector are also an important part of the local economy. It is followed by the tourism sector. There is also a post office in the area and quite a few locals are also engaged in it.