Surname Maps for the O'C Surname in Ireland
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Census Surname Maps for the O'C 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 128 with the surname O'C in Ireland in 1901 and 143 in 1911.
This ranks the surname 1381st in 1901 and 1380th in 1911.
Surname Count in Connacht in 1901: 13
Surname Ranking in Connacht in 1901: 616th
Surname Count in Leinster in 1901: 51
Surname Ranking in Leinster in 1901: 725th
Surname Count in Munster in 1901: 61
Surname Ranking in Munster in 1901: 663rd
Surname Count in Ulster in 1901: 3
Surname Ranking in Ulster in 1901: 948th
Religion statistics for O'C in 1901 - Catholic: 99%, Other: 1%
Religion statistics for O'C in 1911 - Catholic: 90%, None / Not Given: 10%, Anglican: 1%
Common surnames in areas where O'C is also frequent:
Comment / Enquiries
Please feel free to comment or place an enquiry of interest to people with the O'C surname.