The Fernandez family name was found in the USA, the UK, Canada, and Scotland between 1840 and 1920. The most Fernandez families were found in USA in 1920. In 1840 there were 18 Fernandez families living in Louisiana. This was about 72% of all the recorded Fernandez’s in USA. Louisiana had the highest population of Fernandez families in 1840.

https://www.ancestry.com/name-origin?surname=fernandez