The elections were held in accordance with the Local Elections Regulations 1995 as amended. Relevant dates are as follows:
Fine Gael head office issued a pre-election circular to its candidates on strategy for negotiating post-election power-sharing deals with other parties or groups. It prohibits deals with Sinn Féin, except where a council shares power across all groups (typically via D'Hondt method allocation of posts).
Garda inquiries were launched in relation to an unusually large number of postal vote applications in the Ballymote–Tubbercurry LEA, and alleged irregularities around 200 names added to the supplementary electoral register in the Killarney LEA.
All foreigners residing in Ireland can run and vote in local elections, irrespective of their residence status. This also includes asylum-seekers. In 2019, 31 non-Irish candidates ran in the election, originating from countries such as Nigeria, Poland, Romania, Lithuania. Four managed to win seats. Members of the largest minority in Ireland, the Polish were less active as candidates than in previous elections in 2009 and 2014. While in those years, 9 Polish candidates ran each time, in 2019 the number was only 3. None won a seat.
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A figure for 'Others/Independents' is not mentioned in the cited source, but has been calculated by subtracting the other parties from 100%, so the figure shown may be slightly inaccurate due to rounding effects. /wiki/Rounding
Republican Sinn Féin is an unregistered party; therefore Curraoin appears on official lists as non-Party. /wiki/Republican_Sinn_F%C3%A9in
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Pszczółkowska, Dominika; Lesińska, Magdalena (2 January 2022). "One step forward, two steps back in political integration: why are Polish candidates not making progress in Irish local elections?" (PDF). Irish Political Studies. 37 (1): 125–146. doi:10.1080/07907184.2021.1929186. ISSN 0790-7184. https://www.ssoar.info/ssoar/bitstream/document/79920/1/ssoar-irpolstu-2022-1-pszczokowska_et_al-One_step_forward_two_steps.pdf