Postcode · Schalkwijk, Utrecht

Postcode 3998: Migration background and origin

On 1 January 2026, postcode 3998 in Schalkwijk had 2,230 residents. 9.9% of them (220 people) have a migration background: they were born abroad or have at least one parent who was. That is lower than the municipality of Houten (20.5%) and lower than the national average (29.1%). The largest origin groups are other Europe (1.8%), other Asia (1.6%) and Indonesia (1.3%). 47.7% of residents with a migration background were born abroad themselves. Since 2022 the share has risen by 1.9 percentage points.

Residents: 2,230 on 1 January 2026
Migration background: 9.9% 220 people
Born abroad: 47.7% of those with a migration background
Change since 2022: +1.9 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

90%

Dutch origin 90.4% 2,015
Migration background 9.9% 220

Largest origin groups

Bars show each group’s share of all residents of 3998. For comparison, the line marks Municipality of Houten and the circle the Netherlands.

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

1.8% 40 people

Municipality of Houten 3.9% Netherlands 5.6%
Other Asia Asia excluding Indonesia and Turkey

1.6% 35 people

Municipality of Houten 4.8% Netherlands 5.3%
Indonesia

1.3% 30 people

Municipality of Houten 2.2% Netherlands 1.9%
Suriname

0.67% 15 people

Municipality of Houten 1.4% Netherlands 2.0%
Germany

0.67% 15 people

Municipality of Houten 1.3% Netherlands 1.9%
Belgium

0.67% 15 people

Municipality of Houten 0.48% Netherlands 0.76%
Other Africa Africa excluding Morocco

0.67% 15 people

Municipality of Houten 1.8% Netherlands 2.3%
Other Americas & Oceania Americas and Oceania excluding Suriname and the Dutch Caribbean

0.67% 15 people

Municipality of Houten 1.5% Netherlands 1.7%
Turkey

0.45% 10 people

Municipality of Houten 0.90% Netherlands 2.6%
Morocco

0.45% 10 people

Municipality of Houten 1.3% Netherlands 2.4%
Dutch Caribbean Aruba, Curaçao, Sint Maarten, Bonaire, Sint Eustatius and Saba

0.45% 10 people

Municipality of Houten 0.62% Netherlands 1.1%
Poland

0.22% 5 people

Municipality of Houten 0.43% Netherlands 1.4%

First and second generation

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

48% 52%

Born abroad (first generation) 47.7% 105
Born in the Netherlands (second generation) 52.3% 115

Men and women

Men: 1,125
Women: 1,110

Compared with all postcodes

Netherlands 29.1% 3998 9.9%

Higher than 19% 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

9.9%

3998
Municipality of Houten
Netherlands

Show as table

Year	3998	Municipality of Houten	Netherlands
1998	4.0%	9.8%	16.7%
1999	3.9%	10.2%	17.1%
2000	4.1%	10.6%	17.5%
2001	4.4%	11.0%	18.0%
2002	4.6%	11.8%	18.4%
2003	4.6%	12.1%	18.8%
2004	4.8%	12.4%	19.0%
2005	5.3%	12.4%	19.2%
2006	5.1%	12.6%	19.3%
2007	4.8%	12.8%	19.4%
2008	5.1%	12.9%	19.6%
2009	4.9%	12.9%	19.9%
2010	4.9%	13.0%	20.3%
2011	5.4%	13.1%	20.6%
2012	5.1%	13.3%	20.9%
2013	4.7%	13.5%	21.1%
2014	4.9%	13.7%	21.4%
2015	5.2%	14.0%	21.7%
2016	5.4%	14.3%	22.1%
2017	5.4%	14.8%	22.6%
2018	6.3%	15.2%	23.1%
2019	6.2%	15.6%	23.6%
2020	6.6%	16.0%	24.2%
2021	7.2%	16.4%	24.6%
2022	8.0%	17.8%	26.0%
2023	8.4%	18.7%	27.1%
2024	8.3%	19.5%	27.9%
2025	9.4%	20.1%	28.5%
2026	9.9%	20.5%	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
3991 Zuid-West, Noord-West	19.0%	17,905	+2.1 pp	Other Asia
3961 De Engk	16.8%	9,440	+1.6 pp	Other Asia
4101 Oost	24.0%	7,730	+1.5 pp	Morocco
3433 De Wiers, Vreeswijk	24.6%	3,635	+7.6 pp	Other Europe
3439 Rijnhuizen	52.0%	3,570	+11.8 pp	Other Asia
3945 Cothen	10.0%	3,300	+1.4 pp	Other Asia
4106 West	22.2%	1,980	+3.9 pp	Other Asia
4124 Hagestein	11.8%	1,525	+4.3 pp	Other Europe
4121 Everdingen	8.0%	1,185	−0.7 pp	Indonesia
3999 't Waal, Tull	9.0%	725	+1.7 pp	Germany
3997 't Goy	11.9%	675	+5.6 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	1,855	1,780	75	30	45	5	0	10	10	0	15	0	0	15	10	0	10	50	25
1999	1,930	1,855	75	35	35	5	0	10	10	0	15	0	0	20	5	0	5	50	25
2000	1,940	1,860	80	35	45	5	0	10	10	0	10	0	0	25	5	5	10	50	25
2001	1,945	1,855	85	45	40	5	0	10	10	0	15	5	0	25	5	5	5	55	30
2002	1,975	1,880	90	45	45	5	0	10	15	0	10	0	0	35	10	0	5	55	30
2003	1,950	1,855	90	35	60	5	10	5	10	0	10	0	0	25	10	10	10	50	40
2004	1,975	1,875	95	40	60	5	5	10	10	0	10	5	0	25	15	5	10	50	40
2005	1,975	1,865	105	30	75	10	15	10	10	5	10	0	0	20	10	10	5	50	50
2006	1,975	1,880	100	25	75	10	10	10	15	0	10	5	0	10	10	10	10	50	50
2007	1,975	1,875	95	25	70	5	15	10	15	0	10	0	0	15	10	10	5	50	45
2008	1,955	1,855	100	25	70	5	15	10	20	0	10	0	0	15	10	5	5	60	45
2009	1,930	1,840	95	35	65	5	5	10	15	0	10	0	5	20	10	5	15	55	35
2010	1,935	1,840	95	30	70	5	0	15	15	0	10	0	0	20	20	5	10	50	45
2011	1,940	1,835	105	35	75	5	10	15	10	0	10	0	5	20	10	10	15	55	50
2012	1,880	1,790	95	30	65	5	5	15	15	0	15	0	0	15	10	5	10	55	45
2013	1,895	1,800	90	30	65	5	5	15	10	0	15	0	0	15	15	5	10	50	40
2014	1,920	1,825	95	30	65	5	5	15	15	0	10	0	5	15	10	5	10	55	45
2015	1,930	1,830	100	30	70	5	5	15	15	0	10	0	5	15	15	5	10	55	45
2016	1,940	1,835	105	35	70	5	10	15	20	0	10	0	5	20	5	5	10	60	50
2017	1,940	1,835	105	40	65	0	10	15	15	0	10	5	5	20	10	5	10	60	40
2018	1,970	1,845	125	45	75	5	10	15	20	0	10	5	10	20	5	10	10	80	45
2019	2,005	1,880	125	45	85	0	10	20	20	0	10	5	10	20	10	15	10	70	55
2020	2,060	1,925	135	40	95	5	10	15	20	0	10	5	10	15	10	20	15	70	65
2021	2,085	1,935	150	50	100	5	5	15	20	5	15	5	15	15	15	30	5	75	70
2022	2,125	1,950	170	50	120	5	10	15	30	5	10	5	10	20	15	35	10	80	80
2023	2,085	1,915	175	55	115	5	5	10	30	5	10	10	10	25	15	25	15	85	70
2024	2,110	1,935	175	50	125	5	10	15	35	5	10	5	10	25	15	25	15	–	–
2025	2,185	1,980	205	70	135	10	10	15	35	10	10	5	10	45	15	30	15	–	–
2026	2,230	2,015	220	75	145	10	10	15	30	10	15	5	15	40	15	35	15	–	–

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