Northwood is a city in and the county seat of Worth County, Iowa, United States, along the Shell Rock River. The population was 2,072 at the time of the 2020 census.
Northwood is part of the Mason City Micropolitan Statistical Area.
History
Northwood was laid out in 1857 and platted in 1858.
Geography
According to the United States Census Bureau, the city has a total area of , all land.