Trönö is a locality in Söderhamn Municipality, in Gävleborg County, Sweden. Trönö lies at 53 m above sea level. It has 253 inhabitants (2023). The nearest city is Gävle, 82 km to the southeast. Among the landmarks around are Trönö gamla kyrka (2.8 km), Trönö new Church (0.4 km) and Faxeholm (16.1 km).
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