winning 71% of votes, and re-elected in 2015. In the most recent mayoral election on 13 September 2020, Strauss-Köster was re-elected again with 66.0% of votes, defeating Jan-Christoph Schaberick of the SPD. City council The Herdecke city council governs the city alongside the Mayor. The most recent city council election was held on 13 September 2020, and the results were as follows: ! colspan=2| Party ! Votes ! % ! +/- ! Seats ! +/- |- | bgcolor=| | align=left| Social Democratic Party (SPD) | 3,730 | 32.3 | 8.9 | 12 | 4 |- | bgcolor=| | align=left| Christian Democratic Union (CDU) | 3,315 | 28.7 | 0.9 | 11 | ±0 |- | bgcolor=| | align=left| Alliance 90/The Greens (Grüne) | 2,250 | 19.5 | 5.1 | 7 | 2 |- | bgcolor=| | align=left| Free Democratic Party (FDP) | 967 | 8.4 | 0.6 | 3 | ±0 |- | bgcolor=| | align=left| Alternative for Germany (AfD) | 505 | 4.4 | New | 2 | New |- | bgcolor=| | align=left| The Left (Die Linke) | 450 | 3.9 | 3.1 | 1 | 2 |- | bgcolor=| | align=left| Die PARTEI | 328 | 2.8 | New | 1 | New |- ! colspan=2| Valid votes ! 11,545 ! 98.7 ! ! ! |- ! colspan=2| Invalid votes ! 153 ! 1.3 ! ! ! |- ! colspan=2| Total ! 11,698 ! 100.0 ! ! 37 ! 1 |- ! colspan=2| Electorate/voter turnout ! 19,770 ! 59.2 ! ! ! |- | colspan=7| Source: City of Herdecke |} Town partnerships There is a town partnership with Blankenburg (Harz). The town has a display on every Herdecke May Fair where typical foods and beverages as well are offered and touristic offers are being shown. Culture and Sites Sites of interest Tourism is popular especially around and on the two Ruhr lakes. There is Bachviertel, the historical part of Herdecke. Ruhr Viaduct Gut Schede Haus Mallinckrodt Haus Ende Haus Kallenberg Herdecke's old town district Industrial culture Koepchenwerk (a pumped-storage hydroelectricity plant) Water power station Hengstey (only partly in Herdecke) Power station Stiftsmühle (a run-of-the-river hydroelectricity plant) Churches Protestant Church St. Marien Protestent Church of Kirchende Catholic Church of St. Philippus and Jakobus Leisure activities Herdecke has a lot of forest areas where one can hike or jog. Both Ruhr lakes are usable for watersports. The leisure centre