Postcode · Rotterdam, South Holland

Postcode 3031: Neighbourhood Kralingen-Crooswijk

On 1 January 2026, postcode 3031 in Rotterdam (Kralingen-Crooswijk) had 8,365 residents. 63.7% of them (5,325 people) have a migration background: they were born abroad or have at least one parent who was. That is higher than Rotterdam (59.9%) and higher than the national average (29.1%). The largest origin groups are Morocco (12.6%), other Europe (11.1%) and other Asia (10.0%). 61.9% of residents with a migration background were born abroad themselves. Since 2022 the share has risen by 3.2 percentage points.

Residents: 8,365 on 1 January 2026
Migration background: 63.7% 5,325 people
Born abroad: 61.9% of those with a migration background
Change since 2022: +3.2 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

36% 64%

Dutch origin 36.3% 3,040
Migration background 63.7% 5,325

Largest origin groups

Bars show each group’s share of all residents of 3031. For comparison, the line marks Rotterdam and the circle the Netherlands.

Morocco

12.6% 1,055 people

Rotterdam 7.6% Netherlands 2.4%
Other Europe Europe excluding the Netherlands, Belgium, Germany and Poland

11.1% 925 people

Rotterdam 9.3% Netherlands 5.6%
Other Asia Asia excluding Indonesia and Turkey

10.0% 835 people

Rotterdam 8.7% Netherlands 5.3%
Suriname

7.5% 625 people

Rotterdam 7.8% Netherlands 2.0%
Other Africa Africa excluding Morocco

6.3% 530 people

Rotterdam 5.8% Netherlands 2.3%
Turkey

5.7% 475 people

Rotterdam 7.8% Netherlands 2.6%
Other Americas & Oceania Americas and Oceania excluding Suriname and the Dutch Caribbean

3.0% 250 people

Rotterdam 2.9% Netherlands 1.7%
Dutch Caribbean Aruba, Curaçao, Sint Maarten, Bonaire, Sint Eustatius and Saba

2.9% 245 people

Rotterdam 4.4% Netherlands 1.1%
Indonesia

1.5% 125 people

Rotterdam 1.6% Netherlands 1.9%
Germany

1.4% 115 people

Rotterdam 1.4% Netherlands 1.9%
Poland

1.1% 95 people

Rotterdam 1.8% Netherlands 1.4%
Belgium

0.54% 45 people

Rotterdam 0.64% Netherlands 0.76%

First and second generation

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

62% 38%

Born abroad (first generation) 61.9% 3,295
Born in the Netherlands (second generation) 38.1% 2,030

Men and women

Men: 3,940
Women: 4,425

Compared with all postcodes

Netherlands 29.1% 3031 63.7%

Higher than 97% 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

63.7%

3031
Rotterdam
Netherlands

Show as table

Year	3031	Rotterdam	Netherlands
1998	33.0%	38.9%	16.7%
1999	34.6%	40.2%	17.1%
2000	35.5%	41.5%	17.5%
2001	37.8%	42.9%	18.0%
2002	38.9%	44.4%	18.4%
2003	40.9%	45.4%	18.8%
2004	41.7%	46.2%	19.0%
2005	42.2%	46.8%	19.2%
2006	43.5%	47.1%	19.3%
2007	44.3%	47.4%	19.4%
2008	45.8%	48.0%	19.6%
2009	47.4%	48.7%	19.9%
2010	48.5%	49.5%	20.3%
2011	49.7%	50.2%	20.6%
2012	50.6%	50.8%	20.9%
2013	51.6%	51.1%	21.1%
2014	52.4%	51.4%	21.4%
2015	53.3%	51.8%	21.7%
2016	54.6%	52.2%	22.1%
2017	55.5%	52.7%	22.6%
2018	55.8%	53.2%	23.1%
2019	56.9%	53.9%	23.6%
2020	58.1%	54.6%	24.2%
2021	59.2%	55.1%	24.6%
2022	60.4%	56.6%	26.0%
2023	62.2%	57.8%	27.1%
2024	62.8%	58.6%	27.9%
2025	63.1%	59.3%	28.5%
2026	63.7%	59.9%	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
3011 Centrum	60.5%	18,870	+5.8 pp	Other Europe
3061 Kralingen-Crooswijk	57.8%	15,495	+2.3 pp	Morocco
3034 Kralingen-Crooswijk	66.4%	12,140	+2.7 pp	Morocco
3035 Noord	65.7%	6,740	+2.7 pp	Morocco
3032 Noord	63.2%	6,410	+0.8 pp	Morocco

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	7,725	5,175	2,550	580	1,965	290	290	635	140	95	135	20	40	385	260	200	55	735	1,815
1999	7,740	5,065	2,680	585	2,095	325	320	650	140	110	130	20	30	405	285	195	70	740	1,940
2000	7,680	4,940	2,730	595	2,140	335	355	620	145	110	120	20	35	420	300	210	65	755	1,975
2001	7,495	4,665	2,835	590	2,245	345	395	630	145	120	115	25	35	415	315	225	70	755	2,075
2002	7,575	4,625	2,945	605	2,335	380	435	635	150	130	115	25	35	430	305	240	60	780	2,170
2003	7,625	4,510	3,115	645	2,470	385	470	655	145	150	115	30	40	460	325	270	70	820	2,295
2004	7,650	4,460	3,190	645	2,545	395	490	655	150	170	115	30	30	470	330	295	60	820	2,370
2005	7,615	4,405	3,210	610	2,595	410	495	675	135	145	110	25	30	445	345	330	60	780	2,430
2006	7,615	4,310	3,310	640	2,670	450	530	650	145	150	115	30	30	465	360	330	55	810	2,495
2007	7,780	4,325	3,450	675	2,775	475	590	630	150	145	120	30	30	495	360	345	80	860	2,590
2008	7,815	4,235	3,580	695	2,885	490	630	630	155	165	125	35	30	505	375	360	80	885	2,700
2009	7,885	4,150	3,735	680	3,055	495	660	665	175	165	120	40	30	490	400	405	90	890	2,850
2010	7,935	4,085	3,845	730	3,120	510	685	660	165	185	120	35	30	545	395	425	95	935	2,915
2011	8,085	4,070	4,015	780	3,235	520	730	670	160	195	130	35	35	580	405	450	105	990	3,030
2012	8,095	4,000	4,095	780	3,310	505	755	680	150	200	125	30	35	590	430	480	110	980	3,115
2013	8,125	3,935	4,195	780	3,410	520	810	660	160	205	120	35	35	590	440	505	110	975	3,215
2014	8,220	3,915	4,305	785	3,525	510	900	655	170	200	120	45	40	580	440	535	115	985	3,315
2015	8,220	3,835	4,385	815	3,575	525	920	670	170	180	110	50	45	610	455	540	115	1,020	3,365
2016	8,310	3,770	4,540	905	3,635	520	965	675	165	190	135	50	50	670	445	545	130	1,125	3,415
2017	8,375	3,730	4,645	970	3,680	500	980	665	160	190	130	50	45	745	450	595	140	1,190	3,460
2018	8,335	3,685	4,650	970	3,685	490	990	655	155	200	120	60	45	745	425	610	160	1,195	3,460
2019	8,275	3,565	4,710	1,010	3,700	490	1,015	630	145	185	125	55	40	790	430	630	175	1,220	3,485
2020	8,290	3,470	4,820	1,050	3,765	475	1,030	625	150	200	120	60	45	825	450	630	205	1,270	3,545
2021	8,240	3,365	4,875	1,095	3,775	480	1,030	625	145	195	120	70	50	855	475	620	205	1,310	3,560
2022	8,305	3,280	5,020	1,155	3,865	500	995	640	140	195	135	75	60	885	500	680	215	1,365	3,590
2023	8,425	3,185	5,240	1,275	3,960	500	995	625	130	205	140	85	65	985	500	780	225	1,485	3,700
2024	8,540	3,175	5,365	1,305	4,060	480	1,000	640	125	240	140	100	65	1,000	510	805	255	–	–
2025	8,435	3,110	5,325	1,235	4,085	480	1,030	630	125	240	135	90	55	955	510	825	245	–	–
2026	8,365	3,040	5,325	1,180	4,145	475	1,055	625	125	245	115	95	45	925	530	835	250	–	–

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