Thonnsen Family History

You can see how Thonnsen families moved over time by selecting different census years. The Thonnsen family name was found in the USA in 1920. In 1920 there was 1 Thonnsen family living in South Dakota. This was 100% of all the recorded Thonnsen's in USA. South Dakota had the highest population of Thonnsen families in 1920.

Use census records and voter lists to see where families with the Thonnsen surname lived. Within census records, you can often find information like name of household members, ages, birthplaces, residences, and occupations.