Sincoin Family History

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

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