Picket Twenty is a village in Hampshire, England.
It is situated within the SP11 postcode district, which is within the Andover post town.
The full list of postcode districts within the Andover post town is as follows:
The Andover post town is within the Salisbury postcode area.
Administrative Ward: St Mary's
Administrative District: Test Valley
Administrative County: Hampshire
Country: England
UK Parliament: North West Hampshire
NHS Local Health Authority: South Central
NHS Region: Southern