- Country
- Germany, West Germany, allied-occupied Germany, Nazi Germany, Weimar Republic, German Empire, Grand Duchy of Baden, Electorate of Baden, Electoral Palatinate, Duchy of Franconia, Electoral Palatinate, Republic of Baden
- Population
- 150335, 152113, 149633, 140259, 136796, 133566, 134818, 134358, 133485, 133603, 132641, 130573
- Area
- 108.99, 108.86, 108.87, 108.83, 108.84, 108.83, 108.89
- Elevation
- 114 m
- contains the administrative territorial entity
- Schlierbach, Heidelberg old town, Bergheim, Weststadt, Heidelberg-Südstadt, Rohrbach, Kirchheim, Pfaffengrund, Wieblingen, Handschuhsheim, Neuenheim, Boxberg
- described by source
- Regesta Imperii, The Nuttall Encyclopædia, Great Soviet Encyclopedia (1926–1947), Jewish Encyclopedia of Brockhaus and Efron, Small Brockhaus and Efron Encyclopedic Dictionary, Brockhaus and Efron Encyclopedic Dictionary, Topographia Palatinatus Rheni et Vicinarum Regionum, Encyclopædia Britannica 11th edition, The Encyclopedia Americana, Collier's New Encyclopedia, 1921, The New Student's Reference Work, Meyer’s Universum, Zweiter Band
- female population
- 83243, 82477
- hashtag
- Heidelberg
- local dialing code
- 6221, 6202
- located in or next to body of water
- Neckar
- male population
- 77112, 76264
- native label
- Heidelberg
- number of viewers/listeners
- 946054
- official name
- Heidelberg
- postal code
- 69001
- short name
- He
- social media followers
- 120, 127, 132
- total fertility rate
- 1.1
- twinned administrative body
- Mostar, Cambridge, Montpellier, Rehovot, Simferopol, Bautzen, Calamba, Kumamoto, Palo Alto, Hangzhou, Jelenia Góra, Odesa
- vehicle registration plate code
- HD