Postcode · Castricum, North Holland

Postcode 1902: Neighbourhood Oost

On 1 January 2026, postcode 1902 in Castricum (Oost) had 8,695 residents. 16.7% of them (1,455 people) have a migration background: they were born abroad or have at least one parent who was. That is about the same as Castricum (15.8%) and lower than the national average (29.1%). The largest origin groups are other Asia (3.6%), other Europe (3.5%) and Indonesia (2.3%). 49.5% of residents with a migration background were born abroad themselves. Since 2022 the share has risen by 1.3 percentage points.

Residents: 8,695 on 1 January 2026
Migration background: 16.7% 1,455 people
Born abroad: 49.5% of those with a migration background
Change since 2022: +1.3 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

83% 17%

Dutch origin 83.3% 7,240
Migration background 16.7% 1,455

Largest origin groups

Bars show each group’s share of all residents of 1902. For comparison, the line marks Castricum and the circle the Netherlands.

Other Asia Asia excluding Indonesia and Turkey

3.6% 310 people

Castricum 2.9% Netherlands 5.3%
Other Europe Europe excluding the Netherlands, Belgium, Germany and Poland

3.5% 305 people

Castricum 3.8% Netherlands 5.6%
Indonesia

2.3% 200 people

Castricum 2.1% Netherlands 1.9%
Other Americas & Oceania Americas and Oceania excluding Suriname and the Dutch Caribbean

1.8% 155 people

Castricum 1.8% Netherlands 1.7%
Germany

1.6% 135 people

Castricum 1.6% Netherlands 1.9%
Other Africa Africa excluding Morocco

1.2% 100 people

Castricum 1.2% Netherlands 2.3%
Turkey

0.63% 55 people

Castricum 0.46% Netherlands 2.6%
Dutch Caribbean Aruba, Curaçao, Sint Maarten, Bonaire, Sint Eustatius and Saba

0.63% 55 people

Castricum 0.44% Netherlands 1.1%
Suriname

0.58% 50 people

Castricum 0.65% Netherlands 2.0%
Belgium

0.52% 45 people

Castricum 0.44% Netherlands 0.76%
Poland

0.29% 25 people

Castricum 0.29% Netherlands 1.4%
Morocco

0.23% 20 people

Castricum 0.21% Netherlands 2.4%

First and second generation

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

49% 51%

Born abroad (first generation) 49.5% 720
Born in the Netherlands (second generation) 50.5% 735

Men and women

Men: 4,250
Women: 4,445

Compared with all postcodes

Netherlands 29.1% 1902 16.7%

Higher than 47% 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

16.7%

1902
Castricum
Netherlands

Show as table

Year	1902	Castricum	Netherlands
1998	9.5%	9.1%	16.7%
1999	9.9%	9.4%	17.1%
2000	10.0%	9.6%	17.5%
2001	10.2%	9.7%	18.0%
2002	10.3%	9.9%	18.4%
2003	10.4%	10.0%	18.8%
2004	10.4%	10.1%	19.0%
2005	10.3%	10.0%	19.2%
2006	10.6%	10.3%	19.3%
2007	10.7%	10.4%	19.4%
2008	10.8%	10.7%	19.6%
2009	11.2%	10.9%	19.9%
2010	11.6%	11.0%	20.3%
2011	11.4%	11.1%	20.6%
2012	11.5%	11.2%	20.9%
2013	11.5%	11.4%	21.1%
2014	11.8%	11.6%	21.4%
2015	12.0%	11.8%	21.7%
2016	12.4%	12.0%	22.1%
2017	12.6%	12.4%	22.6%
2018	12.6%	12.4%	23.1%
2019	12.9%	12.7%	23.6%
2020	13.1%	12.9%	24.2%
2021	13.4%	13.0%	24.6%
2022	15.4%	14.6%	26.0%
2023	15.5%	15.0%	27.1%
2024	15.5%	14.9%	27.9%
2025	16.1%	15.4%	28.5%
2026	16.7%	15.8%	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
1901 Noord, Centrum	15.3%	15,095	+1.2 pp	Other Europe
1911 Oude Dorp, De Koog	15.8%	13,490	+1.7 pp	Other Asia
1962 Poelenburg en Oosterzij, Assumburg	33.2%	7,850	+3.1 pp	Other Asia
1906 West, Centrum	10.7%	7,790	+0.9 pp	Other Europe
1963 Noordbroek en De Trompet	16.9%	5,595	+1.6 pp	Other Asia
1968 Heemskerkerduin en Noorddorp	9.4%	320	+0.1 pp	Germany

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	8,730	7,895	830	370	460	20	5	50	200	30	170	5	35	160	25	65	65	625	210
1999	8,780	7,915	865	385	490	20	5	45	205	35	170	10	35	170	25	80	75	635	230
2000	8,845	7,960	885	395	485	15	5	50	195	35	175	10	35	175	25	85	75	640	245
2001	9,110	8,180	930	405	530	20	5	50	210	40	170	10	40	185	30	100	75	665	270
2002	9,345	8,385	965	430	540	25	5	45	215	35	170	15	40	205	35	100	80	690	275
2003	9,350	8,380	970	435	545	25	5	50	200	40	170	10	40	215	35	110	80	690	285
2004	9,270	8,310	960	430	535	20	10	50	200	35	170	10	40	210	35	105	80	680	280
2005	9,160	8,215	945	410	535	25	10	45	210	35	170	10	40	190	35	95	80	670	270
2006	9,125	8,160	970	415	555	20	10	50	210	35	170	10	35	200	50	90	90	675	290
2007	9,025	8,060	970	425	545	20	10	50	200	35	165	10	40	210	55	100	75	680	290
2008	8,955	7,990	965	425	535	20	10	50	200	30	165	10	35	215	45	100	80	665	300
2009	8,935	7,930	1,005	450	555	20	15	50	195	35	165	15	45	225	45	115	80	690	315
2010	8,880	7,850	1,030	455	570	20	15	45	195	30	160	15	40	240	60	120	85	690	340
2011	8,845	7,840	1,010	440	570	25	10	50	190	30	160	10	40	230	65	120	80	680	330
2012	8,840	7,830	1,015	450	570	20	10	45	185	35	160	15	40	235	65	130	80	680	335
2013	8,750	7,740	1,010	440	565	15	10	40	185	30	155	15	35	235	60	135	90	670	340
2014	8,705	7,675	1,030	445	590	20	15	40	180	30	150	20	40	235	60	150	95	670	360
2015	8,595	7,565	1,030	450	585	20	10	45	175	30	155	25	35	235	65	150	90	670	355
2016	8,570	7,505	1,065	455	610	15	15	45	170	30	150	20	35	250	70	175	90	670	395
2017	8,680	7,590	1,090	440	650	25	10	45	165	30	140	20	35	245	70	205	100	665	425
2018	8,635	7,545	1,090	430	660	20	15	45	165	30	135	25	30	240	65	215	105	650	435
2019	8,650	7,530	1,120	425	695	25	15	45	165	35	140	20	35	230	70	225	115	655	465
2020	8,680	7,545	1,135	435	695	25	10	50	170	35	140	20	35	240	70	230	105	655	480
2021	8,655	7,495	1,160	450	710	25	15	40	175	35	140	15	40	255	85	230	105	670	490
2022	8,620	7,285	1,330	485	850	35	15	45	200	45	145	20	50	265	105	270	130	685	530
2023	8,640	7,300	1,340	500	840	35	15	40	200	45	140	20	50	290	95	265	140	710	515
2024	8,595	7,255	1,335	485	855	30	15	50	200	50	135	20	40	285	95	270	145	–	–
2025	8,605	7,220	1,385	505	880	35	20	50	200	50	135	20	45	300	95	285	155	–	–
2026	8,695	7,240	1,455	510	945	55	20	50	200	55	135	25	45	305	100	310	155	–	–

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