Postcode · Hoogblokland, South Holland

Postcode 4221: Migration background and origin

On 1 January 2026, postcode 4221 in Hoogblokland had 1,455 residents. 11.0% of them (160 people) have a migration background: they were born abroad or have at least one parent who was. That is about the same as the municipality of Molenlanden (10.4%) and lower than the national average (29.1%). The largest origin groups are other Europe (2.4%), Indonesia (1.4%) and Poland (1.4%). 53.1% of residents with a migration background were born abroad themselves. Since 2022 the share has risen by 2.5 percentage points.

Residents: 1,455 on 1 January 2026
Migration background: 11.0% 160 people
Born abroad: 53.1% of those with a migration background
Change since 2022: +2.5 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

89%

Dutch origin 89.0% 1,295
Migration background 11.0% 160

Largest origin groups

Bars show each group’s share of all residents of 4221. For comparison, the line marks Molenlanden and the circle the Netherlands.

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

2.4% 35 people

Molenlanden 2.4% Netherlands 5.6%
Indonesia

1.4% 20 people

Molenlanden 0.72% Netherlands 1.9%
Poland

1.4% 20 people

Molenlanden 1.0% Netherlands 1.4%
Other Asia Asia excluding Indonesia and Turkey

1.4% 20 people

Molenlanden 2.3% Netherlands 5.3%
Morocco

1.0% 15 people

Molenlanden 0.42% Netherlands 2.4%
Germany

1.0% 15 people

Molenlanden 0.75% Netherlands 1.9%
Other Africa Africa excluding Morocco

0.69% 10 people

Molenlanden 1.0% Netherlands 2.3%
Suriname

0.34% 5 people

Molenlanden 0.31% Netherlands 2.0%
Dutch Caribbean Aruba, Curaçao, Sint Maarten, Bonaire, Sint Eustatius and Saba

0.34% 5 people

Molenlanden 0.26% Netherlands 1.1%
Belgium

0.34% 5 people

Molenlanden 0.27% Netherlands 0.76%
Other Americas & Oceania Americas and Oceania excluding Suriname and the Dutch Caribbean

0.34% 5 people

Molenlanden 0.61% Netherlands 1.7%
Turkey

0.0% 0 people

Molenlanden 0.35% Netherlands 2.6%

First and second generation

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

53% 47%

Born abroad (first generation) 53.1% 85
Born in the Netherlands (second generation) 46.9% 75

Men and women

Men: 750
Women: 705

Compared with all postcodes

Netherlands 29.1% 4221 11.0%

Higher than 23% 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

11.0%

4221
Molenlanden
Netherlands

Show as table

Year	4221	Molenlanden	Netherlands
1998	3.8%	4.7%	16.7%
1999	3.8%	4.6%	17.1%
2000	3.8%	4.7%	17.5%
2001	4.6%	4.7%	18.0%
2002	5.0%	4.8%	18.4%
2003	5.0%	5.0%	18.8%
2004	4.9%	5.0%	19.0%
2005	5.5%	4.9%	19.2%
2006	5.4%	4.9%	19.3%
2007	4.5%	4.9%	19.4%
2008	4.8%	4.9%	19.6%
2009	5.6%	5.1%	19.9%
2010	5.6%	5.2%	20.3%
2011	5.3%	5.3%	20.6%
2012	5.5%	5.3%	20.9%
2013	5.5%	5.5%	21.1%
2014	6.1%	5.5%	21.4%
2015	6.6%	5.6%	21.7%
2016	7.3%	6.0%	22.1%
2017	6.1%	6.3%	22.6%
2018	7.2%	6.5%	23.1%
2019	6.9%	6.7%	23.6%
2020	6.5%	7.0%	24.2%
2021	7.5%	7.4%	24.6%
2022	8.5%	8.2%	26.0%
2023	9.0%	9.0%	27.1%
2024	10.1%	9.4%	27.9%
2025	10.4%	9.8%	28.5%
2026	11.0%	10.4%	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
4205 haarwijk, Stalkaarsen	41.1%	9,835	+2.3 pp	Turkey
4231 Meerkerk	12.3%	4,050	+4.2 pp	Other Europe
4241 Arkel	15.1%	3,475	+2.7 pp	Other Europe
4223 Hoornaar	8.0%	1,935	±0.0 pp	Other Asia
4225 Noordeloos	6.9%	1,895	+2.1 pp	Other Europe
4243 Nieuwland	8.0%	1,065	+1.7 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	1,445	1,390	55	35	25	0	0	0	10	5	20	0	0	15	5	5	0	45	10
1999	1,430	1,375	55	35	25	0	0	0	10	0	15	0	0	20	5	5	5	45	10
2000	1,430	1,375	55	25	40	0	0	0	10	5	15	0	0	10	5	15	5	35	20
2001	1,415	1,345	65	25	40	0	5	0	10	0	15	0	5	5	0	20	5	40	25
2002	1,395	1,330	70	25	40	0	5	0	15	0	15	0	5	5	0	15	10	45	20
2003	1,410	1,340	70	30	40	0	0	0	15	5	15	0	5	10	5	15	0	45	20
2004	1,435	1,365	70	25	35	0	5	0	15	5	15	0	5	5	0	15	0	45	25
2005	1,460	1,380	80	35	45	0	5	0	15	0	15	0	0	20	5	15	5	50	30
2006	1,495	1,415	80	35	40	0	0	0	15	0	15	0	5	15	5	15	5	55	30
2007	1,450	1,385	65	30	30	0	0	0	15	5	15	0	10	5	0	5	5	50	15
2008	1,455	1,385	70	35	35	0	0	5	15	5	15	0	5	15	5	5	0	55	20
2009	1,435	1,355	80	35	40	0	5	5	15	5	15	0	5	15	0	5	5	55	20
2010	1,440	1,360	80	35	45	0	5	5	15	0	15	0	5	15	5	5	10	50	25
2011	1,420	1,345	75	30	45	0	0	5	15	5	15	0	5	10	10	5	5	50	25
2012	1,465	1,375	80	35	45	0	5	10	20	5	15	0	5	15	0	5	0	55	30
2013	1,450	1,370	80	35	50	0	0	5	15	0	15	0	5	15	10	10	10	55	25
2014	1,470	1,380	90	35	55	0	0	10	25	5	15	0	0	20	15	0	0	60	30
2015	1,445	1,350	95	30	60	0	5	5	15	5	15	0	5	10	15	10	5	55	35
2016	1,445	1,340	105	35	70	0	5	5	20	5	15	5	0	15	20	10	5	60	45
2017	1,400	1,315	85	30	55	0	5	5	15	0	15	5	0	10	15	5	10	50	35
2018	1,380	1,280	100	40	60	0	10	5	20	5	15	5	0	20	15	5	0	60	40
2019	1,385	1,290	95	30	70	5	10	5	20	5	15	0	5	10	15	5	5	55	45
2020	1,385	1,295	90	30	60	0	10	5	20	5	15	5	0	10	10	5	5	55	35
2021	1,405	1,300	105	45	55	0	10	5	20	5	15	0	5	25	5	10	0	65	35
2022	1,420	1,295	120	50	75	0	20	5	25	5	15	5	5	20	5	10	10	75	45
2023	1,450	1,320	130	55	75	0	15	5	20	5	15	5	10	25	5	15	5	75	45
2024	1,440	1,295	145	60	85	0	15	5	20	5	15	10	5	30	10	15	5	–	–
2025	1,445	1,295	150	65	85	0	15	5	20	5	15	15	5	30	10	20	5	–	–
2026	1,455	1,295	160	75	85	0	15	5	20	5	15	20	5	35	10	20	5	–	–

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