History of your Surname
Get access to O'fallon family records.Start a free trial

O'fallon Family History

O'fallon Name Meaning

Irish (Leinster and Connacht): Anglicized form of Gaelic Ó Fallamhain ‘descendant of Fallamhan’ (see Fallon).

Source: Dictionary of American Family Names ©2013, Oxford University Press

Similar surnames: Fallon, O'flynn, O'hanlon, O'halloran, O'bannon, O'malley, O'banion

Search for a relative to learn more about your family history.

Hint: Try searching for a relative alive in 1940.

Black & white image of a young woman scientist

Where is the O'fallon family from?

You can see how O'fallon families moved over time by selecting different census years. The O'fallon family name was found in the USA, and Canada between 1880 and 1911. The most O'fallon families were found in USA in 1880. In 1880 there were 44 O'fallon families living in Missouri. This was about 64% of all the recorded O'fallon's in USA. Missouri had the highest population of O'fallon families in 1880.
Use census records and voter lists to see where families with the O'fallon surname lived. Within census records, you can often find information like name of household members, ages, birthplaces, residences, and occupations.

What did your O'fallon ancestors do for a living?

Census records can tell you a lot of little known facts about your O'fallon ancestors, such as occupation. Occupation can tell you about your ancestor's social and economic status.

What O'fallon family records will you find?

Census Records

There are 1,000 census records available for the last name O'fallon. Like a window into their day-to-day life, O'fallon census records can tell you where and how your ancestors worked, their level of education, veteran status, and more.

Search US census records for O'fallon

Passenger Lists

There are 407 immigration records available for the last name O'fallon. Passenger lists are your ticket to knowing when your ancestors arrived in the USA, and how they made the journey - from the ship name to ports of arrival and departure.

View all O'fallon immigration records

Draft Cards

There are 446 military records available for the last name O'fallon. For the veterans among your O'fallon ancestors, military collections provide insights into where and when they served, and even physical descriptions.

View all O'fallon military records

You've only scratched the surface of O'fallon family history

Discover More

What is the average O'fallon lifespan?

Average O'fallon life expectancy in 2004 was 56 years. This was lower than the general public life expectancy which was 74.

View Social Security Death Index (SSDI) for O'fallon

Discover the unique achievements of ancestors in the O'fallon family tree

Explore Your Tree

Browse profiles of historical people with the O'fallon last name

Search for another surname
Enter last name/surname
Start a 14-Day Free Trial