Eaton Socon is a district of St Neots, in the civil parish of St Neots, in the Huntingdonshire district, in the county of Cambridgeshire, England, 1.4 miles south-west of St Neots town centre. Eaton Socon is a component of the town of St Neots, located on its south-west margin. Eaton Socon lies on the west side of the River Great Ouse, and is bounded on the west by the A1 road and on the south by the A428 road. On the north side Duloe Brook delineates the boundary with Eaton Ford, which is also part of St Neots.