Hudson is a city in Iowa in Black Hawk County, was ted plat in 1857. The population was at the 2010 census, are released throughout each year on a flow basis. The rural community of Hudson has grown in recent years. The population density was 274.9 people per square mile. The gender makeup of the city was 50.7 % female and 49.3 % male. Each new series of data incorporates the latest administrative record data, methodology and geographic boundaries. Hudson-area historical earthquake activity is slightly 84 % than the overall U.S.