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Where is the Costilla family from?
You can see how Costilla families moved over time by selecting different census years. The Costilla family name was found in the USA, the UK, and Scotland between 1871 and 1920. The most Costilla families were found in the USA in 1920. In 1880 there were 5 Costilla families living in California. This was about 25% of all the recorded Costilla's in the USA. California and 2 other states had the highest population of Costilla families in 1880.
Use census records and voter lists to see where families with the Costilla surname lived. Within census records, you can often find information like name of household members, ages, birthplaces, residences, and occupations.