Altena is a town in the district of Markischer Kreis, North Rhine-Westphalia, Germany, situated in the Lenne river valley in the northern Sauerland. The town's castle is the origin point of the later Dukes of Berg.
Facts
Area (sq km) Area (sq km) Population Estimate Year Population Estimate Year Elevation (m) Elevation (m) Sources
1. Altena (Wikidata)
P1082 (population)
population 16,403 (2025)
P625 (coordinate location)
latitude 51.3, longitude 7.666667
P2044 (elevation above sea level)
elevation 190 m
P2046 (area)
area 44.29 sq km
P1082 (population), P585 (point in time)
population 16403 (2025)
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