Caddington, a parish in Bedfordshire and Hertfordshire, 2 miles WSW of Luton, under which it has a post office; money order office, Slip End; telegraph office, Luton. Area, 4603 acres, of which 2996 are in Herts and 1607 in Bedfordshire ; population in Bedfordshire, 1021; in Hertfordshire, 1055. The living is a vicarage in the diocese of Ely; net yearly value, £200 with residence. Patrons, the Dean and Chapter of St Paul's. The church is ancient, and has two brasses of the 16th century. There are Wesleyan, Baptist, and Union chapels. Markyate Cell and Caddington Hall are country seats in this parish, which includes the hamlets of Chaul End, Aley Green, Slip End, and Woodside.