Altenburg
Municipality
View of Altenburg
Seal
Altenburg
Coordinates: 48°38′44.2″N 15°35′27.2″E / 48.645611°N 15.590889°E / 48.645611; 15.590889
Country	Austria
State	Niederösterreich
District	Horn
Government
• Mayor	Markus Reichenvater
Area
• Total	28.10 km2 (10.85 sq mi)
Population  (October 31, 2021)
• Total	798
• Density	28.40/km2 (73.6/sq mi)
Time zone	UTC+01:00
Postal code(s)	3591
MCN	31101
Website	Official website

Altenburg is a municipality in the district of Horn in the Austrian state of Lower Austria.

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