Postcode · Oud-Beijerland, South Holland

Postcode 3261: Neighbourhoods Poortwijk and Croonenburghwijk

On 1 January 2026, postcode 3261 in Oud-Beijerland (Poortwijk and Croonenburghwijk) had 10,390 residents. 14.3% of them (1,490 people) have a migration background: they were born abroad or have at least one parent who was. That is about the same as Oud-Beijerland (13.7%) and lower than the national average (29.1%). The largest origin groups are other Asia (3.2%), other Europe (2.7%) and other Africa (1.6%). 49.0% of residents with a migration background were born abroad themselves. Since 2022 the share has risen by 1.4 percentage points.

Residents: 10,390 on 1 January 2026
Migration background: 14.3% 1,490 people
Born abroad: 49.0% of those with a migration background
Change since 2022: +1.4 pp in share with a migration background

Migration background, share of residents

Share of residents with a migration background in this postcode and its neighbours.

Where residents come from

Origin of residents on 1 January 2026, as a share of all residents.

Dutch origin and migration background

86% 14%

Dutch origin 85.7% 8,905
Migration background 14.3% 1,490

Largest origin groups

Bars show each group’s share of all residents of 3261. For comparison, the line marks Oud-Beijerland and the circle the Netherlands.

Other Asia Asia excluding Indonesia and Turkey

3.2% 330 people

Oud-Beijerland 3.1% Netherlands 5.3%
Other Europe Europe excluding the Netherlands, Belgium, Germany and Poland

2.7% 285 people

Oud-Beijerland 2.8% Netherlands 5.6%
Other Africa Africa excluding Morocco

1.6% 165 people

Oud-Beijerland 1.4% Netherlands 2.3%
Indonesia

1.3% 140 people

Oud-Beijerland 1.5% Netherlands 1.9%
Germany

1.2% 125 people

Oud-Beijerland 1.1% Netherlands 1.9%
Other Americas & Oceania Americas and Oceania excluding Suriname and the Dutch Caribbean

1.1% 115 people

Oud-Beijerland 1.0% Netherlands 1.7%
Suriname

0.87% 90 people

Oud-Beijerland 0.70% Netherlands 2.0%
Poland

0.58% 60 people

Oud-Beijerland 0.46% Netherlands 1.4%
Dutch Caribbean Aruba, Curaçao, Sint Maarten, Bonaire, Sint Eustatius and Saba

0.53% 55 people

Oud-Beijerland 0.50% Netherlands 1.1%
Morocco

0.48% 50 people

Oud-Beijerland 0.40% Netherlands 2.4%
Belgium

0.38% 40 people

Oud-Beijerland 0.42% Netherlands 0.76%
Turkey

0.34% 35 people

Oud-Beijerland 0.36% Netherlands 2.6%

First and second generation

Residents with a migration background, by whether they were born abroad themselves.

49% 51%

Born abroad (first generation) 49.0% 730
Born in the Netherlands (second generation) 50.7% 755

Men and women

Men: 5,100
Women: 5,290

Compared with all postcodes

Netherlands 29.1% 3261 14.3%

Higher than 39% of all postcodes in the Netherlands

Trend since 1998

Share of residents with a migration background, compared with larger areas.

Show

Measure % Residents

New CBS classification

14.3%

3261
Oud-Beijerland
Netherlands

Show as table

Year	3261	Oud-Beijerland	Netherlands
1998	8.0%	7.8%	16.7%
1999	8.1%	8.0%	17.1%
2000	8.3%	8.2%	17.5%
2001	8.7%	8.4%	18.0%
2002	8.6%	8.7%	18.4%
2003	8.3%	8.8%	18.8%
2004	8.6%	8.9%	19.0%
2005	8.9%	9.0%	19.2%
2006	8.9%	8.9%	19.3%
2007	8.8%	9.0%	19.4%
2008	8.6%	9.0%	19.6%
2009	8.8%	9.2%	19.9%
2010	9.0%	9.2%	20.3%
2011	8.9%	9.2%	20.6%
2012	9.1%	9.4%	20.9%
2013	8.9%	9.3%	21.1%
2014	9.1%	9.5%	21.4%
2015	9.1%	9.5%	21.7%
2016	9.7%	9.9%	22.1%
2017	10.1%	10.0%	22.6%
2018	10.5%	10.3%	23.1%
2019	10.9%	10.7%	23.6%
2020	11.4%	10.9%	24.2%
2021	11.7%	11.2%	24.6%
2022	13.0%	12.4%	26.0%
2023	13.6%	12.9%	27.1%
2024	13.8%	13.1%	27.9%
2025	14.1%	13.4%	28.5%
2026	14.3%	13.7%	29.1%

In 2022 CBS switched to a new origin classification. Up to 2021 the line shows the old “migration background” figures; the overlap years show a small break (about +0.8 points nationally).

Nearby postcodes

				Largest group
3207 Maaswijk, Schenkel	25.0%	15,090	+2.9 pp	Suriname
3261 Poortwijk, Croonenburghwijk	14.3%	10,390	+1.4 pp	Other Asia
3262 Zuidwijk, Zeeheldenwijk	13.7%	10,075	+1.3 pp	Other Europe
3161 Zuid, Noord	23.0%	9,615	+3.1 pp	Other Europe
3271 Mijnsheerenland	14.8%	4,870	+2.3 pp	Other Europe
3264 Nieuw-Beijerland	8.9%	4,445	+1.8 pp	Other Europe
3286 Klaaswaal	9.8%	4,170	+1.3 pp	Other Europe
3274 Heinenoord	15.3%	3,860	+2.8 pp	Other Asia
3273 Westmaas	12.6%	2,175	+1.3 pp	Other Europe

All figures

Number of residents per origin group on 1 January. Figures up to 2021 use the old CBS classification.

Year	Total residents	Dutch origin	Migration background	Europe	Outside Europe	Turkey	Morocco	Suriname	Indonesia	Dutch Caribbean	Germany	Poland	Belgium	Other Europe	Other Africa	Other Asia	Other Americas & Oceania	Western migration background	Non-Western migration background
1998	6,100	5,620	485	185	295	5	35	30	95	15	70	0	10	105	40	45	30	290	190
1999	6,925	6,365	560	225	330	5	40	40	105	15	95	5	15	110	35	60	30	345	220
2000	7,020	6,430	585	240	345	5	30	35	105	15	100	10	20	110	45	60	50	355	235
2001	7,045	6,435	610	250	350	5	35	45	100	20	105	10	15	120	35	60	50	370	240
2002	7,370	6,735	635	280	355	5	30	50	100	20	115	10	20	135	45	65	40	385	250
2003	8,025	7,350	670	290	380	0	35	50	115	20	115	10	20	145	35	80	45	410	260
2004	8,310	7,595	715	310	405	5	35	55	125	20	115	15	25	155	45	75	45	440	280
2005	8,850	8,060	790	335	450	5	45	70	130	20	130	15	30	160	55	85	40	475	315
2006	9,100	8,290	810	350	460	5	40	70	135	20	130	20	30	170	60	80	50	495	315
2007	9,340	8,515	825	360	460	10	35	75	135	10	130	20	30	180	60	85	50	515	315
2008	9,260	8,465	795	360	440	5	35	70	125	10	130	30	30	170	55	85	55	495	300
2009	9,325	8,500	825	390	435	5	30	75	120	15	130	25	35	200	55	80	55	530	290
2010	9,315	8,475	835	385	450	5	35	75	130	10	135	30	35	185	55	80	60	530	305
2011	9,275	8,450	830	380	460	10	35	75	130	20	130	30	30	190	50	85	55	535	290
2012	9,300	8,450	850	380	465	10	35	75	135	15	125	30	30	195	60	75	60	545	305
2013	9,325	8,495	830	380	450	10	35	70	130	15	130	35	30	185	55	65	70	545	290
2014	9,575	8,700	875	410	460	10	30	65	130	15	140	35	30	205	50	90	70	580	295
2015	9,630	8,755	875	405	470	5	30	65	135	20	135	30	25	215	55	90	70	570	305
2016	9,800	8,845	955	415	540	10	35	65	130	25	120	40	30	225	55	140	80	585	370
2017	9,990	8,980	1,010	440	570	5	35	70	140	25	125	50	30	235	80	135	80	615	395
2018	10,160	9,090	1,070	430	645	10	30	80	145	30	130	45	30	225	95	175	80	615	455
2019	10,160	9,055	1,105	440	665	10	35	70	145	25	130	40	25	245	95	195	90	620	480
2020	10,385	9,200	1,185	465	720	10	40	70	145	30	125	40	35	265	120	220	85	645	535
2021	10,415	9,195	1,220	465	750	20	40	75	140	35	130	40	35	260	120	230	90	650	570
2022	10,575	9,205	1,370	480	890	30	40	90	145	55	140	40	40	265	135	290	105	655	645
2023	10,565	9,125	1,435	510	925	35	50	95	145	50	130	40	40	310	145	290	110	690	680
2024	10,435	8,990	1,445	490	955	35	40	100	140	50	125	50	45	275	165	315	110	–	–
2025	10,445	8,980	1,470	495	975	30	45	90	135	55	120	55	40	275	165	330	115	–	–
2026	10,390	8,905	1,490	515	970	35	50	90	140	55	125	60	40	285	165	330	115	–	–

Definitions and method · CBS 85640NED (2022–2026), 83503NED (1998–2023)