Opinion polling on the European Union in Poland

Left: Leszek Miller, signatory of the Polish accession treaty.
Right: Poland highlighted on a map of the EU

Poland accessed the European Union on 1 May 2004 following a membership referendum, where 77% of voters chose to join the Union. ^{[1] [2]} In the leadup to the referendum and afterwards, several polling agencies conducted opinion polls regarding on Poland's membership and issues related to the European Union.

Membership voting intention

Leaving (after 2003)

Date(s) conducted	Polling firm/Link	Sample size	Remain	Leave	Don't know/Neutral	Net remain
31 Dec 2025 – 1 Jan 2026	Pollster / "SE.pl"	1,002	69	22	9	47
5–8 Dec 2025	IBRiS / WP.pl	1,000	65.7	24.7	9.6	41.0
25–28 Nov 2025	Eurobazooka / LGC	1,008	69	25	6	44
5–8 Dec 2003	CBOS	1,000	63	29	9	34
7–10 Nov 2003	CBOS	1,088	63	30	7	33
3–6 Oct 2003		1,016	69	23	8	46
5–8 Sep 2003	CBOS	1,105	67	20	13	47

Accession (until 2003)

Date(s) conducted	Polling firm/Link	Sample size	Support	Oppose	Don't know/Neutral	Net remain
7–8 Jun 2003	2003 referendum	17,576,714	77.45	22.55		54.90
29 May – 1 Jun 2003	CBOS	1,264	76	13	11	63
9–12 May 2003	CBOS	1,260	74	15	11	59

Adaptation of the Euro

Date(s) conducted	Polling firm/Link	Sample size	For	Against	Other option	Don't know/Neutral	Net support
31 Dec 2025 – 1 Jan 2026	Pollster / "SE.pl"	1,002	21	70		9	–49
19–20 Dec 2025	IBRiS / Radio ZET	1,068	20.4	72.3		7.2	–51.9
19–20 Dec 2025	IBRiS / Rz [a]	1,068	29	62		11	–33
25–28 Nov 2025	Eurobazooka / LGC	1,008	14	72	9 [b]	5	–58

Membership satisfaction

Date(s) conducted	Polling firm/Link	Sample size	Approve	Disapprove	Neither	Don't know/Neutral	Net support
8 Jan – 26 Apr 2025 [c]	Pew Research Center	28,333 [c]	60	38			22
11 Jan – 15 May 2024 [c]	Pew Research Center	11,294 [c]	76	21			55
19–21 Apr 2024	United Surveys / DGP, RMF FM	1,000	70	22		8	48
20 Feb – 22 May 2023 [c]	Pew Research Center	27,285 [c]	87	10			77
1 Jun – 18 Jul 2019	Pew Research Center	1,030	84	14			70

Other polls

An IBRiS poll for Rzeczpospolita conducted on 5–6 December 2025 found that 48.9% of Poles believed Poland should recognize same-sex marriages formalized in other European Union countries, while 44.1% believed Poland should not. ^[3]

An SW Research poll for Rzeczpospolita conducted on 6–7 January 2026 found that 15.6% of respondents believed that the competences should grow, 33.5% believed they should remain the same as currently, 21.0% believed that the EU should relinquish competences to the member states, and 14.9% believed the EU should dissolve. ^[4]

Notes

1. Question wording: "Should Poland join adapt the Euro as its currency in the next 10 years?"
2. doesn't matter
3. The poll was conducted internationally, and the fieldwork dates and/or sample size spans all countries where the poll was conducted.

References

1. Referendum 2003, National Electoral Commission , retrieved 2025-12-22
2. Bednarz, Paweł (1 May 2019). "Kilkanaście lat temu Polacy zdecydowali o wejściu do UE. "Chcieliśmy by TAK było silniejsze niż NIE!" [WYWIAD]". Business Insider . Retrieved 2025-12-22.
3. Ćwiek-Świdecka, Joanna (22 December 2025). "Polacy nie mówią "nie" związkom homoseksualnym". Rzeczpospolita . Retrieved 2025-12-22.
4. Bartkiewicz, Artur (13 January 2025). "Sondaż: Jak powinna zmienić się Unia Europejska? Poznaliśmy zdanie Polaków". Rzeczpospolita . Retrieved 2026-01-13.