Galva is a city in Henry County, Illinois, United States. The population was 2,470 at the 2020 census. Cousins William L. Wiley and James Wile…Galva is a city in Henry County, Illinois, United States. The population was 2,470 at the 2020 census. Cousins William L. Wiley and James Wiley founded Galva in 1854. The name Galva honors the Swedish immigrants of nearby Bishop Hill and refers to Gävle, Sweden which is the town's sister city. Today around 80% of the town has Scandinavian ancestry.
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