The municipality haes a population o 343 (30 September 2012) and covers an area of 860.38 square kilometres (332.19 sq mi) of which 761.12 km2 (293.87 sq mi) is water. The population density is Expression error: Unrecognized word "automatic". inhabitants per square kilometre (Expression error: Unrecognized word "automatic". /sq mi).
89.2% o the population is Swadish-speakin, 6.1% is Finnish-speakin, an 4.7% speak ither leids.
The first visitors tae Kumlinge wur Vikings who stoppit thare durin their voyages. The first permanent residents arrivit in the 13t century. Accordin tae taxrolls frae the 16t century thare wur aboot a dozen hooses on the main island at the time, hame tae maistly fermers an fishermen. In the 20t century the population o Kumlinge slowly began tae decline.
The kirk in the veelage is dedicatit tae Saunt Anne an dates frae the 15t century. Thare are twa ferm museums in Kumlinge: Hermas museigård an Sjölunds gårdsmuseum. Thare is a memorial stane in Fälberget which is dedicatit tae the war o 1808 when a Roushie battalion wis defeatit in the veelage o Kumlinge. The auld post route goes through Kumlinge an aw.