Grethem

Grethem
Coat of arms
Grethem
Location of Grethem within Heidekreis district
Coordinates: 52°43′N 09°35′E / 52.717°N 9.583°E / 52.717; 9.583Coordinates: 52°43′N 09°35′E / 52.717°N 9.583°E / 52.717; 9.583
Country	Germany
State	Lower Saxony
District	Heidekreis
Municipal assoc.	Ahlden
Government
• Mayor	Udo Schönberg
Area
• Total	16.35 km2 (6.31 sq mi)
Elevation	24 m (79 ft)
Population (2015-12-31)
• Total	646
• Density	40/km2 (100/sq mi)
Time zone	CET/CEST (UTC+1/+2)
Postal codes	29690
Dialling codes	05164
Vehicle registration	FAL, SFA
Website	www.grethem.de

Grethem is a municipality in the district of Heidekreis, in Lower Saxony, Germany.