Woolmer Green is a village in Hertfordshire, England.

It is situated within the SG3 postcode district, which is within the Knebworth post town.

SG3 is the only postcode district within the Knebworth post town.

The Knebworth post town is within the Stevenage postcode area.

Key data for Woolmer Green:

Administrative Ward: Welwyn East

Administrative District: Welwyn Hatfield

Administrative County: Hertfordshire

Country: England

UK Parliament: Welwyn Hatfield

NHS Local Health Authority: East of England

NHS Region: North, Midlands and the East

A map showing the location of Woolmer Green within the SG3 postcode district