Woodbine is a city in Harrison County, Iowa, United States, along the Boyer River. The population was 1,625 at the time of the 2020 censu…Woodbine is a city in Harrison County, Iowa, United States, along the Boyer River. The population was 1,625 at the time of the 2020 census. Woodbine was platted 1866 at the time the Chicago and North Western Railway was built through that territory. It was incorporated as a town in 1877. The town was named for the dense growth of the woodbine plant near the original town site.