Postcode · Westzaan, North Holland

Postcode 1551: Neighbourhoods Noord and Zuid

On 1 January 2026, postcode 1551 in Westzaan (Noord and Zuid) had 5,130 residents. 18.7% of them (960 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 lower than the national average (29.1%). The largest origin groups are other Europe (4.3%), other Asia (2.0%) and Germany (1.8%). 47.9% of residents with a migration background were born abroad themselves. Since 2022 the share has risen by 2.9 percentage points.

Residents: 5,130 on 1 January 2026
Migration background: 18.7% 960 people
Born abroad: 47.9% of those with a migration background
Change since 2022: +2.9 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

81% 19%

Dutch origin 81.3% 4,170
Migration background 18.7% 960

Largest origin groups

Bars show each group’s share of all residents of 1551. For comparison, the line marks Zaanstad and the circle the Netherlands.

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

4.3% 220 people

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

2.0% 105 people

Zaanstad 6.2% Netherlands 5.3%
Germany

1.8% 90 people

Zaanstad 1.3% Netherlands 1.9%
Suriname

1.7% 85 people

Zaanstad 3.8% Netherlands 2.0%
Indonesia

1.7% 85 people

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

1.7% 85 people

Zaanstad 2.1% Netherlands 1.7%
Dutch Caribbean Aruba, Curaçao, Sint Maarten, Bonaire, Sint Eustatius and Saba

1.4% 70 people

Zaanstad 0.77% Netherlands 1.1%
Morocco

1.3% 65 people

Zaanstad 3.5% Netherlands 2.4%
Other Africa Africa excluding Morocco

1.1% 55 people

Zaanstad 2.8% Netherlands 2.3%
Poland

0.88% 45 people

Zaanstad 1.1% Netherlands 1.4%
Turkey

0.68% 35 people

Zaanstad 8.7% Netherlands 2.6%
Belgium

0.39% 20 people

Zaanstad 0.31% Netherlands 0.76%

First and second generation

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

48% 52%

Born abroad (first generation) 47.9% 460
Born in the Netherlands (second generation) 52.1% 500

Men and women

Men: 2,690
Women: 2,440

Compared with all postcodes

Netherlands 29.1% 1551 18.7%

Higher than 52% 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

18.7%

1551
Zaanstad
Netherlands

Show as table

Year	1551	Zaanstad	Netherlands
1998	6.4%	20.4%	16.7%
1999	6.5%	20.8%	17.1%
2000	6.4%	21.3%	17.5%
2001	6.3%	21.7%	18.0%
2002	6.6%	22.3%	18.4%
2003	6.7%	23.0%	18.8%
2004	6.8%	23.3%	19.0%
2005	7.2%	23.5%	19.2%
2006	7.4%	24.0%	19.3%
2007	7.3%	24.5%	19.4%
2008	7.5%	25.0%	19.6%
2009	8.3%	25.7%	19.9%
2010	8.5%	26.2%	20.3%
2011	8.6%	26.7%	20.6%
2012	8.5%	27.4%	20.9%
2013	8.9%	27.9%	21.1%
2014	9.6%	28.4%	21.4%
2015	9.9%	28.9%	21.7%
2016	9.9%	29.6%	22.1%
2017	10.6%	30.5%	22.6%
2018	11.2%	31.3%	23.1%
2019	12.0%	32.3%	23.6%
2020	13.7%	33.3%	24.2%
2021	14.9%	34.0%	24.6%
2022	15.8%	35.4%	26.0%
2023	17.0%	37.1%	27.1%
2024	17.5%	38.2%	27.9%
2025	18.3%	39.3%	28.5%
2026	18.7%	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
1566 Zuid, Noord	19.4%	13,005	+2.4 pp	Turkey
1521 Noord, Centrum	32.6%	12,140	+3.8 pp	Other Europe
1541 Westerkoog, Oud Koog a/d Zaan	29.2%	11,305	+3.8 pp	Other Europe
1544 Oud Zaandijk, Rooswijk	31.7%	8,870	+4.5 pp	Other Asia
1047 Havens-West, Sloterdijk Nieuw-West	28.6%	35	−1.4 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	4,600	4,310	295	170	120	5	0	10	75	10	85	5	10	70	0	15	5	255	35
1999	4,555	4,260	295	175	125	5	0	10	75	5	85	5	15	70	5	10	15	265	30
2000	4,545	4,255	290	180	115	0	0	15	75	5	80	5	15	80	5	10	5	260	30
2001	4,600	4,310	290	175	120	0	0	10	75	5	75	0	10	90	5	10	15	260	35
2002	4,580	4,280	300	170	130	5	0	15	75	5	80	5	10	75	5	10	15	265	40
2003	4,565	4,265	305	170	140	10	0	15	70	5	75	0	10	85	10	10	20	255	50
2004	4,530	4,220	310	175	140	5	5	15	65	10	80	0	10	85	5	25	10	260	55
2005	4,520	4,190	325	175	145	5	5	15	70	5	85	0	10	80	5	20	20	265	60
2006	4,485	4,150	330	180	155	10	5	15	70	5	80	0	5	95	5	25	20	265	70
2007	4,445	4,115	325	165	160	10	5	15	70	5	75	0	10	80	5	25	25	255	75
2008	4,390	4,065	330	165	165	10	10	10	70	5	75	5	10	75	0	30	30	260	70
2009	4,410	4,050	365	185	180	10	10	15	75	5	80	20	5	80	5	25	35	280	90
2010	4,365	3,995	370	185	180	10	10	10	75	10	80	15	10	80	5	25	35	280	90
2011	4,415	4,035	380	195	190	10	5	10	75	10	80	15	5	95	5	30	45	290	90
2012	4,420	4,045	375	190	185	10	5	15	70	10	80	10	15	85	5	30	40	285	95
2013	4,440	4,045	395	200	200	10	10	20	70	5	85	10	15	90	5	30	50	290	105
2014	4,470	4,040	430	210	215	15	5	20	75	10	85	15	10	100	10	30	50	315	110
2015	4,510	4,065	445	215	230	15	10	20	80	10	80	10	15	110	10	35	50	320	125
2016	4,550	4,100	450	215	235	15	10	20	85	10	80	10	10	115	10	30	55	325	130
2017	4,610	4,120	490	225	265	20	15	30	85	10	85	10	15	115	10	40	55	340	155
2018	4,625	4,105	520	225	295	20	15	40	85	20	85	15	10	115	15	45	55	335	185
2019	4,680	4,120	560	235	325	25	25	40	80	25	85	5	15	130	15	55	60	345	220
2020	4,865	4,200	665	260	405	25	45	60	85	40	90	10	15	145	35	60	55	375	290
2021	4,955	4,215	740	290	445	35	50	75	90	35	95	10	15	170	40	55	65	415	320
2022	4,985	4,195	790	290	500	35	45	75	95	55	100	15	10	160	45	75	80	405	360
2023	5,080	4,220	865	330	535	45	45	75	95	55	100	30	15	190	50	90	85	450	385
2024	5,090	4,200	890	335	555	45	50	85	90	50	95	35	15	190	50	90	90	–	–
2025	5,130	4,190	940	365	570	40	60	85	90	60	95	45	15	210	50	95	90	–	–
2026	5,130	4,170	960	375	585	35	65	85	85	70	90	45	20	220	55	105	85	–	–

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