Postcode · Koog aan de Zaan, North Holland

Postcode 1541: Neighbourhoods Westerkoog and Oud Koog a/d Zaan

On 1 January 2026, postcode 1541 in Koog aan de Zaan (Westerkoog and Oud Koog a/d Zaan) had 11,305 residents. 29.2% of them (3,300 people) have a migration background: they were born abroad or have at least one parent who was. That is lower than the municipality of Zaanstad (40.6%) and about the same as the national average (29.1%). The largest origin groups are other Europe (7.0%), other Asia (4.3%) and Suriname (3.1%). 55.0% of residents with a migration background were born abroad themselves. Since 2022 the share has risen by 3.8 percentage points.

Residents: 11,305 on 1 January 2026
Migration background: 29.2% 3,300 people
Born abroad: 55.0% of those with a migration background
Change since 2022: +3.8 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

71% 29%

Dutch origin 70.8% 8,005
Migration background 29.2% 3,300

Largest origin groups

Bars show each group’s share of all residents of 1541. For comparison, the line marks Zaanstad and the circle the Netherlands.

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

7.0% 790 people

Zaanstad 7.8% Netherlands 5.6%
Other Asia Asia excluding Indonesia and Turkey

4.3% 485 people

Zaanstad 6.2% Netherlands 5.3%
Suriname

3.1% 355 people

Zaanstad 3.8% Netherlands 2.0%
Indonesia

2.7% 305 people

Zaanstad 2.2% Netherlands 1.9%
Other Americas & Oceania Americas and Oceania excluding Suriname and the Dutch Caribbean

2.5% 285 people

Zaanstad 2.1% Netherlands 1.7%
Turkey

2.4% 275 people

Zaanstad 8.7% Netherlands 2.6%
Other Africa Africa excluding Morocco

1.9% 210 people

Zaanstad 2.8% Netherlands 2.3%
Germany

1.8% 200 people

Zaanstad 1.3% Netherlands 1.9%
Morocco

1.5% 175 people

Zaanstad 3.5% Netherlands 2.4%
Poland

0.80% 90 people

Zaanstad 1.1% Netherlands 1.4%
Dutch Caribbean Aruba, Curaçao, Sint Maarten, Bonaire, Sint Eustatius and Saba

0.66% 75 people

Zaanstad 0.77% Netherlands 1.1%
Belgium

0.44% 50 people

Zaanstad 0.31% Netherlands 0.76%

First and second generation

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

55% 45%

Born abroad (first generation) 55.0% 1,815
Born in the Netherlands (second generation) 45.0% 1,485

Men and women

Men: 5,560
Women: 5,745

Compared with all postcodes

Netherlands 29.1% 1541 29.2%

Higher than 74% 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

29.2%

1541
Zaanstad
Netherlands

Show as table

Year	1541	Zaanstad	Netherlands
1998	16.8%	20.4%	16.7%
1999	16.6%	20.8%	17.1%
2000	17.3%	21.3%	17.5%
2001	17.9%	21.7%	18.0%
2002	18.1%	22.3%	18.4%
2003	18.2%	23.0%	18.8%
2004	18.1%	23.3%	19.0%
2005	18.2%	23.5%	19.2%
2006	18.7%	24.0%	19.3%
2007	18.9%	24.5%	19.4%
2008	19.3%	25.0%	19.6%
2009	19.4%	25.7%	19.9%
2010	19.7%	26.2%	20.3%
2011	19.7%	26.7%	20.6%
2012	19.6%	27.4%	20.9%
2013	20.1%	27.9%	21.1%
2014	20.5%	28.4%	21.4%
2015	20.8%	28.9%	21.7%
2016	21.1%	29.6%	22.1%
2017	21.2%	30.5%	22.6%
2018	21.8%	31.3%	23.1%
2019	22.9%	32.3%	23.6%
2020	23.3%	33.3%	24.2%
2021	24.0%	34.0%	24.6%
2022	25.4%	35.4%	26.0%
2023	26.8%	37.1%	27.1%
2024	27.4%	38.2%	27.9%
2025	28.2%	39.3%	28.5%
2026	29.2%	40.6%	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
1507 Nieuw West	45.7%	14,910	+9.9 pp	Other Asia
1506 West, Oude Haven	45.7%	14,670	+8.9 pp	Other Europe
1544 Oud Zaandijk, Rooswijk	31.7%	8,870	+4.5 pp	Other Asia
1509 Noord	23.2%	6,490	+3.2 pp	Other Europe
1508 Kogerveldwijk	62.4%	5,765	+8.3 pp	Turkey
1551 Noord, Zuid	18.7%	5,130	+2.9 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	12,260	10,205	2,065	680	1,390	185	100	390	460	45	265	20	25	370	60	75	75	1,160	905
1999	12,315	10,260	2,050	650	1,400	205	110	370	455	40	265	10	30	345	55	95	70	1,130	920
2000	12,320	10,190	2,130	665	1,470	210	120	375	450	45	265	10	30	360	70	125	75	1,140	985
2001	12,150	9,985	2,170	685	1,475	205	120	375	445	45	265	10	30	380	70	135	80	1,170	995
2002	12,060	9,875	2,185	725	1,465	190	115	365	445	55	270	10	35	410	80	135	80	1,200	985
2003	11,910	9,740	2,170	720	1,445	175	125	355	425	60	255	15	30	420	80	135	90	1,170	995
2004	11,850	9,710	2,140	720	1,415	170	125	345	425	60	255	15	35	415	60	120	110	1,170	970
2005	11,770	9,625	2,145	740	1,405	170	140	340	390	55	255	15	35	435	75	125	110	1,160	985
2006	11,625	9,455	2,170	735	1,425	190	135	360	375	50	250	15	40	430	85	135	95	1,150	1,025
2007	11,480	9,315	2,165	735	1,425	185	145	345	380	45	245	15	35	440	90	130	105	1,140	1,020
2008	11,440	9,230	2,210	750	1,460	195	145	350	380	55	230	15	40	465	85	140	110	1,160	1,055
2009	11,445	9,225	2,225	775	1,445	190	155	350	370	45	240	15	40	480	85	145	105	1,175	1,050
2010	11,345	9,110	2,240	760	1,485	200	140	350	365	45	245	20	45	450	115	160	110	1,160	1,080
2011	11,260	9,035	2,220	770	1,460	190	130	360	360	50	235	25	40	470	110	160	100	1,160	1,060
2012	11,200	9,010	2,195	745	1,440	185	130	350	345	45	225	30	45	445	115	155	115	1,125	1,065
2013	11,180	8,935	2,245	780	1,470	185	135	350	345	55	230	30	45	475	130	165	105	1,155	1,090
2014	11,205	8,910	2,295	810	1,490	185	135	350	350	60	230	45	45	490	130	170	110	1,195	1,105
2015	11,150	8,835	2,315	810	1,500	190	130	340	350	60	225	55	50	480	125	190	115	1,200	1,115
2016	11,155	8,800	2,355	820	1,535	195	135	335	330	60	230	65	50	475	135	215	130	1,200	1,150
2017	11,130	8,775	2,355	825	1,530	205	135	335	315	65	220	65	45	495	115	220	140	1,195	1,160
2018	11,225	8,775	2,450	870	1,580	220	130	345	315	60	215	75	40	540	120	235	155	1,245	1,200
2019	11,260	8,685	2,575	925	1,655	230	135	355	330	60	220	85	40	580	120	260	165	1,320	1,260
2020	11,275	8,645	2,630	905	1,725	245	150	365	325	65	205	70	40	590	135	265	175	1,300	1,330
2021	11,225	8,535	2,690	940	1,755	260	160	365	320	60	200	85	50	605	135	280	175	1,320	1,375
2022	11,165	8,325	2,835	965	1,875	265	170	350	325	75	200	80	65	620	150	330	205	1,330	1,425
2023	11,225	8,220	3,005	1,040	1,970	255	175	360	320	75	210	90	65	675	170	395	225	1,400	1,525
2024	11,255	8,175	3,085	1,085	2,000	260	170	355	300	75	210	105	60	705	185	405	250	–	–
2025	11,345	8,145	3,200	1,125	2,075	275	175	350	305	75	200	95	55	770	200	435	260	–	–
2026	11,305	8,005	3,300	1,130	2,170	275	175	355	305	75	200	90	50	790	210	485	285	–	–

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