Postcode · Julianadorp, North Holland

Postcode 1787: Neighbourhoods Het Koegras and Duinzoom

On 1 January 2026, postcode 1787 in Julianadorp (Het Koegras and Duinzoom) had 3,605 residents. 13.7% of them (495 people) have a migration background: they were born abroad or have at least one parent who was. That is lower than Julianadorp (17.1%) and lower than the national average (29.1%). The largest origin groups are other Europe (2.5%), Indonesia (2.4%) and other Americas & Oceania (1.7%). 40.4% of residents with a migration background were born abroad themselves. Since 2022 the share has risen by 1.4 percentage points.

Residents: 3,605 on 1 January 2026
Migration background: 13.7% 495 people
Born abroad: 40.4% of those with a migration background
Change since 2022: +1.4 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

86%

Dutch origin 86.3% 3,110
Migration background 13.7% 495

Largest origin groups

Bars show each group’s share of all residents of 1787. For comparison, the line marks Julianadorp and the circle the Netherlands.

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

2.5% 90 people

Julianadorp 2.9% Netherlands 5.6%
Indonesia

2.4% 85 people

Julianadorp 3.4% Netherlands 1.9%
Other Americas & Oceania Americas and Oceania excluding Suriname and the Dutch Caribbean

1.7% 60 people

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

1.5% 55 people

Julianadorp 2.0% Netherlands 1.1%
Germany

1.5% 55 people

Julianadorp 1.7% Netherlands 1.9%
Other Asia Asia excluding Indonesia and Turkey

1.2% 45 people

Julianadorp 1.7% Netherlands 5.3%
Suriname

1.1% 40 people

Julianadorp 0.76% Netherlands 2.0%
Turkey

0.55% 20 people

Julianadorp 0.36% Netherlands 2.6%
Other Africa Africa excluding Morocco

0.55% 20 people

Julianadorp 1.0% Netherlands 2.3%
Poland

0.28% 10 people

Julianadorp 0.92% Netherlands 1.4%
Morocco

0.14% 5 people

Julianadorp 0.26% Netherlands 2.4%
Belgium

0.14% 5 people

Julianadorp 0.40% Netherlands 0.76%

First and second generation

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

40% 59%

Born abroad (first generation) 40.4% 200
Born in the Netherlands (second generation) 58.6% 290

Men and women

Men: 1,820
Women: 1,785

Compared with all postcodes

Netherlands 29.1% 1787 13.7%

Higher than 36% 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

13.7%

1787
Julianadorp
Netherlands

Show as table

Year	1787	Julianadorp	Netherlands
1998	23.2%	14.8%	16.7%
1999	12.3%	14.6%	17.1%
2000	11.7%	14.5%	17.5%
2001	8.8%	14.5%	18.0%
2002	13.0%	14.9%	18.4%
2003	13.0%	15.1%	18.8%
2004	14.0%	15.0%	19.0%
2005	15.5%	14.8%	19.2%
2006	16.5%	14.8%	19.3%
2007	16.8%	14.7%	19.4%
2008	15.2%	14.8%	19.6%
2009	16.7%	14.7%	19.9%
2010	16.8%	14.9%	20.3%
2011	12.2%	14.3%	20.6%
2012	12.8%	14.6%	20.9%
2013	11.7%	14.6%	21.1%
2014	11.4%	14.6%	21.4%
2015	11.1%	14.5%	21.7%
2016	11.2%	14.6%	22.1%
2017	11.5%	14.3%	22.6%
2018	10.9%	14.3%	23.1%
2019	10.8%	14.6%	23.6%
2020	10.7%	14.8%	24.2%
2021	11.2%	15.2%	24.6%
2022	12.3%	16.2%	26.0%
2023	13.2%	16.3%	27.1%
2024	14.2%	16.9%	27.9%
2025	14.2%	17.0%	28.5%
2026	13.7%	17.1%	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
1788 West	18.2%	11,560	+1.0 pp	Indonesia
1784 Nieuw Den Helder-Oost	36.9%	9,720	+3.9 pp	Other Asia
1764 Breezand	13.3%	3,940	+3.8 pp	Other Europe
1783 Nieuw Den Helder-West	23.6%	2,585	+1.7 pp	Indonesia
1759 Groote Keeten, Abbestede en Buitengebied	14.9%	2,420	+1.8 pp	Other Europe
1786 Het Koegras	10.3%	145	−3.9 pp	Poland

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	345	270	80	15	60	0	0	0	10	0	10	0	0	5	0	45	5	35	40
1999	325	285	40	15	20	0	0	0	5	0	10	0	5	0	0	5	10	30	10
2000	385	345	45	25	15	0	0	0	10	0	10	0	5	10	0	0	5	40	5
2001	400	360	35	20	15	0	0	0	10	0	15	0	0	5	0	0	5	35	5
2002	460	400	60	35	20	0	0	0	10	0	20	5	5	5	0	5	5	55	5
2003	500	440	65	30	40	0	0	5	15	0	20	5	0	5	5	0	15	50	15
2004	500	430	70	30	40	5	0	0	15	0	20	0	0	10	5	0	15	50	20
2005	515	430	80	40	45	5	0	5	15	5	30	0	5	5	5	5	5	60	25
2006	515	430	85	45	50	5	0	0	15	0	20	5	5	15	0	5	25	65	25
2007	505	420	85	40	40	0	0	0	15	5	20	5	5	10	0	5	15	65	20
2008	495	420	75	45	30	0	0	0	15	5	20	0	0	25	0	0	10	65	10
2009	480	405	80	45	35	0	0	5	20	0	25	5	0	15	0	0	10	70	10
2010	475	395	80	45	40	0	0	0	20	5	25	5	0	15	0	0	20	70	10
2011	1,975	1,735	240	100	145	10	0	20	55	15	50	5	5	40	10	10	25	165	75
2012	2,035	1,770	260	125	145	5	5	20	50	15	55	10	5	55	5	15	30	185	80
2013	2,045	1,800	240	95	150	10	5	20	50	20	45	5	5	40	5	15	25	160	80
2014	2,105	1,865	240	90	150	10	5	20	50	15	45	5	5	35	0	25	25	150	90
2015	2,120	1,885	235	90	145	10	5	20	50	15	45	5	5	35	0	20	25	150	90
2016	2,150	1,910	240	95	145	10	5	20	50	20	45	5	5	40	0	25	15	150	90
2017	2,215	1,960	255	100	160	15	5	15	50	20	45	10	10	35	5	25	25	170	90
2018	2,290	2,040	250	90	155	15	0	20	55	20	40	10	0	40	5	20	20	155	95
2019	2,400	2,140	260	105	155	10	5	15	55	20	40	10	5	50	0	25	25	170	90
2020	2,660	2,375	285	115	170	15	5	20	50	25	50	10	5	50	5	25	25	180	110
2021	2,845	2,525	320	125	195	20	5	20	60	25	55	10	5	55	5	25	35	205	120
2022	3,010	2,640	370	135	230	15	5	20	65	40	60	10	5	65	10	35	35	205	145
2023	3,220	2,795	425	150	270	20	10	25	75	45	55	15	10	75	20	35	50	225	170
2024	3,480	2,985	495	180	315	20	5	30	85	60	55	20	10	95	20	40	55	–	–
2025	3,530	3,025	500	170	330	20	5	40	90	55	55	15	5	90	20	40	55	–	–
2026	3,605	3,110	495	165	325	20	5	40	85	55	55	10	5	90	20	45	60	–	–

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