It is the westernmost of the East Frisian Islands, north of the province Groningen, Netherlands.
The only town on the island is also called Borkum.
... and the average family size is 3.52. In the town the population is spread out with 26.0% under the age of 18, 9.4% from 18 to 24, 34.6% from 25 to 44, 19.4% from 45 to 64, ...