- Country
- Germany
- State
- Saxony-Anhalt
- District
- Mansfeld-Südharz
- Mayor 2023 30
- Janet Klaus ( SPD )
- Total
- 121.69 km (46.98 sq mi)
- Density
- 50.32/km (130.3/sq mi)
- Time zone
- UTC+01:00 ( CET )
- Summer dst
- UTC+02:00 ( CEST )
- Postal codes
- 06333 (Arnstedt, Bräunrode, Greifenhagen, Quenstedt, Sylda, Welbsleben, Wiederstedt), 06456 (Sandersleben), 06543 (Alterode, Harkerode, Stangerode, Ulzigerode)
- Dialling codes
- 03473, 03476, 034742, 034781, 034785
- Vehicle registration
- MSH, EIL, HET, ML, SGH
- Website
- arnstein-harz.de