Iserlohn

Iserlohn
Iserlohn
Town
	Bauernkirche
	Coat of arms
	Location of Iserlohn within Märkischer Kreis district
	Location of Iserlohn
	Iserlohn Location within Germany Iserlohn Location within North Rhine-Westphalia
	Coordinates: 51°23′N 07°40′E / 51.383°N 7.667°E
Country	Germany
State	North Rhine-Westphalia
Admin. region	Arnsberg
District	Märkischer Kreis
Subdivisions	5
Government
• Mayor (2020–30)	Michael Joithe (Die Iserlohner)
Area
• Total	125.49 km2 (48.45 sq mi)
Elevation	494 m (1,621 ft)
Population (2025-12-31)
• Total	91,317
• Density	727.68/km2 (1,884.7/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
Postal codes	58636–58644
Dialling codes	02371 (Iserlohn); 02374 (Iserlohn-Letmathe); 02304 (Schwerte, Iserlohn-Hennen); 02352 (Altena, parts of Iserlohn-Kesbern); 02378 (Fröndenberg- Langschede, Iserlohn-Drüpplingsen);
Vehicle registration	MK; IS until 1974; LS until 1979;
Website	www.iserlohn.de

Iserlohn (German: [iːzɐˈloːn] ^ⓘ; Westphalian: Iserlaun) is a city in the Märkischer Kreis district, in North Rhine-Westphalia, in west-central Germany. It is the largest city by population and area within the district and the Sauerland region.