| Type: | Stadt |
| Arnstein | |
| Coordinates: | 51.6833°N 39°W |
| Website: | arnstein-harz.de |
| Image Plan: | Arnstein in MSH.svg |
| State: | Sachsen-Anhalt |
| District: | Mansfeld-Südharz |
| Area: | 121.71 |
| Postal Code: | 06333 (Arnstedt, Bräunrode, Greifenhagen, Quenstedt, Sylda, Welbsleben, Wiederstedt), 06456 (Sandersleben), 06543 (Alterode, Harkerode, Stangerode, Ulzigerode) |
| Area Code: | 03473, 03476, 034742, 034781, 034785 |
| Licence: | MSH, EIL, HET, ML, SGH |
| Gemeindeschlüssel: | 15 0 87 031 |
| Mayor: | Janet Klaus[1] |
| Leader Term: | 2023 - 30 |
| Party: | SPD |
Arnstein is a town in the Mansfeld-Südharz district, Saxony-Anhalt, Germany. It was formed on 1 January 2010 by the voluntary merger of twelve former municipalities.[2] Its mayor is Frank Sehnert.
The town of Arnstein is divided into twelve localities (Ortschaften),[3] corresponding to the twelve former municipalities which now constitute the town.[2] Some of the localities consist of a number of Ortsteile (local parts).
| Locality | Population | Parts | |
|---|---|---|---|
| Alterode | 517 | Alterode | Localities of Arnstein |
| Arnstedt | 552 | Arnstedt | |
| Bräunrode | 447 | Bräunrode, Friedrichrode, Willerode | |
| Greifenhagen | 272 | Greifenhagen | |
| Harkerode | 333 | Harkerode | |
| Quenstedt | 820 | Pfersdorf, Quenstedt | |
| Sandersleben | 1901 | Roda, Sandersleben | |
| Stangerode | 351 | Stangerode | |
| Sylda | 512 | Sylda | |
| Ulzigerode | 202 | Ulzigerode | |
| Welbsleben | 712 | Welbsleben | |
| Wiederstedt | 1074 | Wiederstedt |
Arnstein was created on 1 January 2010 by the voluntary merger of twelve former municipalities in the Mansfeld-Südharz district.[2] The new unified entity took its name from the old administrative unit of Amt Arnstein in the County of Mansfeld and the Arnstein Castle.