[2] The town is also served by an airport (IATA: HAWC, ICAO: WAC).

Arnold Weinholt Hodson visited Wacca when he was the British resident in southern Ethiopia (1914-1923), where he shared a meal with a local chief which he obviously did not enjoy: The Sudan Interior Mission had a station at Wacca from 1952 until it was nationalized in 1988 and the buildings used as a school.

A visitor in 1972 described Wacca as a town on top of a mountain, with a post office, a pharmacy, and an Ethiopian Orthodox church.

[1] In 1995, the local school participated in an experimental curriculum to teach subjects in the Gamo-Gofa-Dawro language.

[4] Based on figures from the Central Statistical Agency in 2005, Wacca has an estimated total population of 3,439 of whom 3,424 were men and 6,863 were women.