Surname Maps for the O'Connor Surname in Ireland
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Census Surname Maps for the O'Connor Surname
Note that it is likely that some Ulster-Scots speakers reported that they only spoke Irish. Both censuses contained a question concerned with whether a person spoke Irish, English or both. No other languages were mentioned.
Surname Counts and Rankings
There were 4,665 with the surname O'Connor in Ireland in 1901 and 4,052 in 1911.
This ranks the surname 150th in 1901 and 192nd in 1911.
Surname Count in Connacht in 1901: 540
Surname Ranking in Connacht in 1901: 231st
Surname Count in Leinster in 1901: 1,000
Surname Ranking in Leinster in 1901: 197th
Surname Count in Munster in 1901: 2,845
Surname Ranking in Munster in 1901: 61st
Surname Count in Ulster in 1901: 280
Surname Ranking in Ulster in 1901: 673rd
Religion statistics for O'Connor in 1901 - Catholic: 98%, Anglican: 2%
Religion statistics for O'Connor in 1911 - Catholic: 98%, Anglican: 2%
Surnames with a similar spelling as O'Connor.
The numbers in brackets represent the number of people with the given surname in 1901. If the surname is followed by a zero then it only occured in the 1911 census.
Common surnames in areas where O'Connor is also frequent:
Comment / Enquiries
Please feel free to comment or place an enquiry of interest to people with the O'Connor surname.