Lacon City was a municipality on the planet Deneva, on the Summer Islands. (ST - Destiny novel: Lost Souls) It was also the planet's capital. (TNG novel: Losing the Peace)

Elieth, the son of Tuvok, was a peace officer in Lacon City, where he lived with his wife, Ione Kitain. Both remained in the city during the Borg Invasion of 2381, and were killed during the Borg's assault. (ST - Destiny novel: Lost Souls)