2009 Treaty of Lisbon: Yes 67.1% No 32.9%
Referendum on the Twenty-Eighth Amendment of the Constitution (Treaty of Lisbon) Bill 2009
| Constituency | Yes | No | Turnout | Spoilt | ||
|---|---|---|---|---|---|---|
National Result | 67.1% (1,214,268) | | 32.9% (594,606) | | 59.0% (1,816,098) | 0.4% (7,224) |
| 70.5% (42,499) | | 29.5% (17,755) | | 60.0% (60,548) | 0.5% (294) | |
| 62.0% (34,740) | | 38.0% (21,301) | | 59.1% (56,262) | 0.4% (221) | |
| 72.3% (33,707) | | 27.7% (12,898) | | 59.9% (46,827) | 0.5% (222) | |
| 66.1% (31,956) | | 33.9% (16,387) | | 57.5% (48,521) | 0.4% (178) | |
| 55.8% (21,642) | | 44.2% (17,136) | | 59.6% (38,939) | 0.4% (161) | |
| 69.5% (27,249) | | 30.5% (11,942) | | 60.8% (39,344) | 0.4% (153) | |
| 66.8% (36,040) | | 33.2% (17,874) | | 60.3% (54,097) | 0.3% (183) | |
| 67.2% (23,764) | | 32.8% (11,615) | | 60.6% (35,530) | 0.4% (151) | |
| 48.5% (14,156) | | 51.5% (15,005) | | 51.4% (29,290) | 0.4% (129) | |
| 49.7% (15,623) | | 50.3% (15,794) | | 52.3% (31,544) | 0.4% (127) | |
| 61.9% (18,545) | | 38.1% (11,396) | | 53.3% (30,088) | 0.5% (147) | |
| 61.5% (21,435) | | 38.5% (13,424) | | 55.8% (34,963) | 0.3% (104) | |
| 72.7% (36,971) | | 27.3% (13,895) | | 61.3% (51,059) | 0.4% (193) | |
| 71.1% (23,692) | | 28.9% (9,624) | | 65.6% (33,421) | 0.3% (105) | |
| 63.5% (21,045) | | 36.5% (12,117) | | 63.4% (33,297) | 0.4% (135) | |
| 55.0% (15,734) | | 45.0% (12,850) | | 57.6% (28,698) | 0.4% (114) | |
| 81.7% (47,549) | | 18.3% (10,672) | | 59.5% (58,412) | 0.3% (191) | |
| 58.0% (25,854) | | 42.0% (18,742) | | 55.5% (44,810) | 0.5% (214) | |
| 78.7% (23,478) | | 21.3% (6,365) | | 54.7% (29,970) | 0.4% (127) | |
| 58.9% (23,192) | | 41.1% (16,178) | | 57.7% (39,510) | 0.4% (140) | |
| 68.5% (21,429) | | 31.5% (9,852) | | 59.5% (31,344) | 0.2% (63) | |
| 81.2% (45,917) | | 18.8% (10,651) | | 74.2% (56,728) | 0.3% (160) | |
| 68.1% (30,549) | | 31.9% (14,306) | | 56.1% (45,051) | 0.4% (196) | |
| 66.3% (31,000) | | 33.7% (15,732) | | 54.2% (46,910) | 0.4% (178) | |
| 63.6% (19,543) | | 36.4% (11,193) | | 55.6% (30,882) | 0.5% (146) | |
| 66.4% (20,092) | | 33.6% (10,170) | | 58.4% (30,397) | 0.4% (135) | |
| 76.2% (32,012) | | 23.8% (10,002) | | 57.3% (42,174) | 0.4% (160) | |
| 69.7% (21,586) | | 30.3% (9,373) | | 55.3% (31,057) | 0.3% (98) | |
| 73.2% (46,624) | | 26.8% (17,097) | | 59.6% (63,979) | 0.4% (258) | |
| 67.4% (30,210) | | 32.6% (14,607) | | 57.8% (44,998) | 0.4% (181) | |
| 69.3% (23,366) | | 30.7% (10,343) | | 58.1% (33,831) | 0.4% (122) | |
| 65.6% (30,870) | | 34.4% (16,156) | | 57.3% (47,232) | 0.4% (206) | |
| 61.0% (30,116) | | 39.0% (19,241) | | 58.8% (49,604) | 0.5% (247) | |
| 61.7% (34,056) | | 38.3% (21,132) | | 58.0% (55,392) | 0.4% (204) | |
| 72.3% (27,822) | | 27.7% (10,653) | | 56.1% (38,627) | 0.4% (152) | |
| 64.9% (23,103) | | 35.1% (12,504) | | 55.4% (35,739) | 0.4% (132) | |
| 66.0% (25,580) | | 34.0% (13,194) | | 65.0% (38,930) | 0.4% (156) | |
| 64.5% (21,295) | | 35.5% (11,744) | | 58.9% (33,173) | 0.4% (134) | |
| 70.4% (25,768) | | 29.6% (10,846) | | 65.1% (36,758) | 0.4% (144) | |
| 68.4% (22,712) | | 31.6% (10,483) | | 61.1% (33,379) | 0.6% (184) | |
| 68.5% (30,744) | | 31.5% (14,116) | | 62.3% (45,083) | 0.5% (223) | |
| 65.2% (39,463) | | 34.8% (21,067) | | 58.8% (60,756) | 0.4% (226) | |
| 70.7% (41,540) | | 29.3% (17,174) | | 65.3% (58,944) | 0.4% (230) | |