City · North Holland

Castricum: Migration background and origin

On 1 January 2026, Castricum had 23,790 residents. 15.8% of them (3,770 people) have a migration background: they were born abroad or have at least one parent who was. That is higher than the municipality of Castricum (14.3%) and lower than the national average (29.1%). The largest origin groups are other Europe (3.8%), other Asia (2.9%) and Indonesia (2.1%). 48.0% of residents with a migration background were born abroad themselves. Since 2022 the share has risen by 1.2 percentage points.

Residents: 23,790 on 1 January 2026
Migration background: 15.8% 3,770 people
Born abroad: 48.0% of those with a migration background
Change since 2022: +1.2 pp in share with a migration background

Migration background, share of residents

Share of residents with a migration background per postcode.

Where residents come from

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

Dutch origin and migration background

84% 16%

Dutch origin 84.2% 20,020
Migration background 15.8% 3,770

Largest origin groups

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

Other Europe Europe excluding the Netherlands, Belgium, Germany and Poland

3.8% 910 people

Municipality of Castricum 3.5% Netherlands 5.6%
Other Asia Asia excluding Indonesia and Turkey

2.9% 680 people

Municipality of Castricum 2.7% Netherlands 5.3%
Indonesia

2.1% 505 people

Municipality of Castricum 1.8% Netherlands 1.9%
Other Americas & Oceania Americas and Oceania excluding Suriname and the Dutch Caribbean

1.8% 430 people

Municipality of Castricum 1.6% Netherlands 1.7%
Germany

1.6% 375 people

Municipality of Castricum 1.4% Netherlands 1.9%
Other Africa Africa excluding Morocco

1.2% 280 people

Municipality of Castricum 1.1% Netherlands 2.3%
Suriname

0.65% 155 people

Municipality of Castricum 0.54% Netherlands 2.0%
Turkey

0.46% 110 people

Municipality of Castricum 0.39% Netherlands 2.6%
Dutch Caribbean Aruba, Curaçao, Sint Maarten, Bonaire, Sint Eustatius and Saba

0.44% 105 people

Municipality of Castricum 0.40% Netherlands 1.1%
Belgium

0.44% 105 people

Municipality of Castricum 0.39% Netherlands 0.76%
Poland

0.29% 70 people

Municipality of Castricum 0.32% Netherlands 1.4%
Morocco

0.21% 50 people

Municipality of Castricum 0.18% Netherlands 2.4%

First and second generation

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

48% 52%

Born abroad (first generation) 48.0% 1,810
Born in the Netherlands (second generation) 52.1% 1,965

Men and women

Men: 11,610
Women: 12,180

Compared with all cities

Netherlands 29.1% Castricum 15.8%

Higher than 68% of all cities in the Netherlands

Trend since 1998

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

Show

Measure % Residents

New CBS classification

15.8%

Castricum
Municipality of Castricum
Netherlands

Show as table

Year	Castricum	Municipality of Castricum	Netherlands
1998	9.1%	8.0%	16.7%
1999	9.4%	8.3%	17.1%
2000	9.6%	8.4%	17.5%
2001	9.7%	8.6%	18.0%
2002	9.9%	8.8%	18.4%
2003	10.0%	8.8%	18.8%
2004	10.1%	9.0%	19.0%
2005	10.0%	9.0%	19.2%
2006	10.3%	9.2%	19.3%
2007	10.4%	9.2%	19.4%
2008	10.7%	9.4%	19.6%
2009	10.9%	9.6%	19.9%
2010	11.0%	9.7%	20.3%
2011	11.1%	9.8%	20.6%
2012	11.2%	9.9%	20.9%
2013	11.4%	10.1%	21.1%
2014	11.6%	10.2%	21.4%
2015	11.8%	10.4%	21.7%
2016	12.0%	10.6%	22.1%
2017	12.4%	11.0%	22.6%
2018	12.4%	11.1%	23.1%
2019	12.7%	11.4%	23.6%
2020	12.9%	11.7%	24.2%
2021	13.0%	11.8%	24.6%
2022	14.6%	13.2%	26.0%
2023	15.0%	13.6%	27.1%
2024	14.9%	13.5%	27.9%
2025	15.4%	14.0%	28.5%
2026	15.8%	14.3%	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).

Postcodes in Castricum

				Largest group
1901 Noord, Centrum	15.3%	15,095	+1.2 pp	Other Europe
1902 Oost	16.7%	8,695	+1.3 pp	Other Asia

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	22,895	20,805	2,085	980	1,105	60	10	110	475	60	445	20	75	440	75	155	160	1,585	510
1999	22,935	20,770	2,160	1,015	1,155	55	15	100	490	70	450	30	75	460	75	165	185	1,615	545
2000	22,905	20,705	2,200	1,015	1,185	55	15	115	485	65	445	30	75	465	85	185	180	1,620	575
2001	23,130	20,890	2,240	1,025	1,220	60	15	120	490	75	435	30	85	475	90	190	180	1,635	605
2002	23,345	21,035	2,320	1,055	1,265	65	10	120	495	75	430	35	85	505	100	200	200	1,680	635
2003	23,275	20,940	2,335	1,060	1,290	70	10	120	485	75	430	30	85	515	100	215	215	1,685	655
2004	23,210	20,875	2,340	1,055	1,295	60	25	125	480	70	420	30	85	520	95	225	215	1,665	670
2005	23,045	20,730	2,315	1,030	1,290	60	20	120	480	70	410	30	85	505	105	225	210	1,650	660
2006	22,990	20,630	2,360	1,050	1,320	55	25	130	480	70	410	30	75	535	115	225	220	1,665	690
2007	22,920	20,530	2,395	1,050	1,340	60	25	115	475	75	405	30	85	530	125	260	205	1,675	720
2008	22,755	20,315	2,435	1,090	1,345	55	20	120	475	70	405	35	75	575	130	265	210	1,695	740
2009	22,690	20,210	2,475	1,105	1,370	55	30	125	475	75	400	40	85	580	120	285	205	1,705	775
2010	22,665	20,165	2,495	1,120	1,370	50	30	115	470	65	395	40	85	600	130	295	215	1,715	785
2011	22,660	20,150	2,515	1,105	1,405	55	25	120	470	80	395	35	80	595	140	310	205	1,710	805
2012	22,585	20,055	2,530	1,115	1,420	55	25	110	470	75	395	40	80	600	140	320	225	1,720	810
2013	22,500	19,925	2,575	1,120	1,455	55	25	115	460	70	390	45	75	610	145	345	240	1,715	860
2014	22,460	19,845	2,615	1,125	1,495	65	25	110	450	75	390	55	75	605	145	375	250	1,720	895
2015	22,425	19,785	2,640	1,130	1,515	70	25	115	455	70	380	55	70	625	150	380	250	1,735	895
2016	22,635	19,915	2,720	1,150	1,575	70	30	125	455	65	380	50	75	645	165	420	245	1,755	970
2017	22,965	20,120	2,845	1,150	1,695	75	25	125	460	75	375	60	70	645	180	490	265	1,775	1,070
2018	23,155	20,280	2,875	1,150	1,725	70	30	130	460	75	370	55	75	650	185	505	270	1,770	1,105
2019	23,230	20,270	2,960	1,155	1,805	70	30	130	465	85	375	55	80	645	210	510	305	1,800	1,160
2020	23,300	20,290	3,010	1,190	1,815	70	25	135	460	90	385	55	80	670	220	510	305	1,815	1,190
2021	23,280	20,255	3,025	1,220	1,805	65	30	125	460	80	380	45	85	710	230	505	310	1,840	1,185
2022	23,335	19,915	3,415	1,290	2,125	80	35	135	500	105	400	45	100	745	270	615	385	1,865	1,270
2023	23,365	19,850	3,510	1,365	2,145	85	40	135	505	110	385	55	110	805	260	615	400	1,955	1,280
2024	23,355	19,865	3,485	1,335	2,155	80	45	145	505	105	375	50	100	800	260	620	400	–	–
2025	23,550	19,925	3,625	1,410	2,215	95	45	150	500	100	375	60	105	865	265	655	420	–	–
2026	23,790	20,020	3,770	1,460	2,310	110	50	155	505	105	375	70	105	910	280	680	430	–	–

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