Lonisa City, the capital city of the planet Valo, was the location of the unfinished Valo Temple. It was situated on the banks of Lake Lonisa. The Republic Fair was held in Lonisa City during the High Republic Era, drawing guests from all over the galaxy. Nihil pirates attacked the fair, though. Before the assault, Jedi Padawan Ram Jomaram was taken into custody for sending an off-world distress signal after the planet's communications were sabotaged. Jedi Knight Vernestra Rwoh and Padawan Lula Talisola battled Nihil starfighters in the skies close to Lonisa City before their starship, the Varonchagger, went down. Rwoh then dispatched Talisola into the city to free Jomaram. Among Lonisa City's districts were the Carnival District and the Government District.
The novels The High Republic: The Rising Storm and The High Republic: Race to Crashpoint Tower marked Lonisa City's initial appearance. Prior to the release of Race to Crashpoint Tower, a preview featured in The High Republic: A Test of Courage referred to Lonisa City as Valo City.