Urban Area

Vienna	2020
Total area	41,487 hectare (4,465,769.6 squarefeet)
Built-up area	14,916 hectare (35.9 %)
Green space	18,660 hectare (45.0 %)
Bodies of water	1,909 hectare (4.6 %)
Roads, streets	6,002 hectare (14.5 %)
Length of city boundaries	136.5 kilometre
Highest elevation	Hermannskogel (543 metres)
Lowest elevation	Lobau (151 metres)
Northernmost border point	Border point 60 in the cadastral district of Stammersdorf, located approximately 1,400 metres north-west of the old post office Stammersdorf (21st municipal district)
Easternmost border point	Border point 176 in the cadastral district of Kaiserebersdorf-Herrschaft (22nd municipal district), approximately 700 metres north of Gänsehaufen-Traverse
Westernmost border point	Westernmost corner of the wall around the Lainz Wildlife Preserve, approximately 1,000 metres north-west of "Altes Dianator" gate (13th municipal district)
Southernmost border point	Approximately 370 metres south-west of "Schutzengelkreuz" in the cadastral district of Unter-Laa (10th municipal district)
Longest street	Höhenstraße (17th and 19th districts) - 15.0 kilometres
Shortest street	Irisgasse (1st district) - 17.5 metres
Highest building	Donauturm tower in Donaupark (22nd district) - 252 metres

Source: Municipal Departments 28, 37 and 41.