424 1816 - 2,780 1905 - 3,580 1945 - 4,500 1990 - 9,087 After their inclusion (December 31) 1998 - 21,175 1999 - 21,338 2000 - 21,403 2001 - 21,571 2002 - 21,620 2003 - 21,685 2004 - 21,724 2005 - 22,600 Mayors 1945–1954: Peter Hartmann (SPD) (1888–1969) 1954–1965: Ludwig Wedel (SPD) (1909–1993) 1969–1988: Hugo Seibert (independent) (1925–2011) 1988–2005: Wilfried Köbler (SPD) 2006-2021: Joachim Ruppert (SPD) (1962–2021) 2022–2028: René Kirch (independent) Culture Each year on the second weekend of September there is a "Winzerfest" (a wine festival) which attracts tens of thousands of people. Infrastructure Groß-Umstadt has schools for students of all ages and a general hospital. The city is connected to the Odenwald Railway and has three train stations: Groß-Umstadt Wiebelsbach, Groß-Umstadt Mitte and Groß-Umstadt Klein-Umstadt. Trains running between Frankfurt/Hanau and Eberbach stop at these stations, while trains running between Darmstadt and Eberbach only stop at Groß-Umstadt Wiebelsbach. Partner cities Saint-Péray (France; since 1966) Santo Tirso (Portugal; since 1988) Dicomano (Italy; since 2010) Notable people Otto Frank (physiologist) (1865–1944), physiologist Hans Trippel (1908–2001), German autoconstructor ("father of the amphibious vehicles"), entangled crimes of national socialism References Darmstadt-Dieburg