The following table appears on the CAIN (Conflict Archive on the Internet) web site:	
http://cain.ulst.ac.uk/ni/rel/rel.htm	
Table NI-REL-03: Percentage of Catholics in each District Council Area, 1971, 1981, 1991, and 2001					
District Council Area	% Catholics 1971 1	% Catholics 1981 2 	% Catholics 1991 3	% Catholics 2001 4	
Antrim	31.10	33.00	34.80	38.64	
Ards	16.00	13.00	12.30	12.60	
Armagh	44.50	46.50	48.40	48.70	
Ballymena	17.70	19.00	19.40	20.97	
Ballymoney	29.60	29.00	31.80	31.90	
Banbridge	31.20	28.50	30.30	31.47	
Belfast	34.10	38.00	42.70	47.19	
Carrickfergus	16.20	8.00	7.50	8.66	
Castlereagh	10.10	8.00	10.30	18.26	
Coleraine	23.90	24.00	24.20	27.21	
Cookstown	49.20	52.50	55.70	57.64	
Craigavon	38.70	42.00	43.60	44.68	
Derry	64.30	68.50	74.20	75.37	
Down	54.10	59.50	62.20	61.95	
Dungannon	52.30	53.00	58.60	60.80	
Fermanagh	52.50	54.50	57.60	58.73	
Larne	26.80	24.50	24.00	25.18	
Limavady	52.40	54.50	55.80	56.58	
Lisburn	16.60	22.50	29.10	33.35	
Magherafelt	54.70	56.50	62.00	64.13	
Moyle	48.70	51.00	55.80	60.29	
Newry & Mourne 	71.40	74.00	77.80	80.64	
Newtownabbey	18.00	13.50	14.20	19.36	
North Down	11.30	9.00	9.80	12.58	
Omagh	62.10	65.00	67.70	69.07	
Strabane	56.90	61.00	64.40	66.19	
Northern Ireland	36.80	38.50	41.30	43.76	
Notes:	
1. Based on adjustments by Compton (Compton, Paul. 1978, Northern Ireland: A Census Atlas. Dublin: Gill and Macmillan).					
2. Based on adjustments by Compton and Power (Compton, Paul. Power, John. 1986, 'Estimates of the Religious Composition of Northern Ireland Local Government Districts in 1981 and Change in the Geographical Pattern of Religious Composition between 1971 and 1981'. The Economic and Social Review, 17, 2 Spring: 87-105).					
3. Based on adjustments by Compton (unpublished estimates supplied by The Equality Commission, 1999).					
4. Based on the additional question about community / religious background in the 2001 Census which allowed those initially recorded as 'persons with no religion or religion not stated' to be ascribed to the main religious groupings.					
Source:	
Northern Ireland Census 2001 Key Statistics (2002), Table Table KS07b.	
Table also available as: 	
Rich Text Format (RTF) Document; Microsoft Excel Document.