Postcode · Groenekan, Utrecht

Postcode 3737: Migration background and origin

On 1 January 2026, postcode 3737 in Groenekan had 2,010 residents. 14.2% of them (285 people) have a migration background: they were born abroad or have at least one parent who was. That is lower than the municipality of De Bilt (22.6%) and lower than the national average (29.1%). The largest origin groups are other Europe (3.7%), Indonesia (2.2%) and Germany (2.0%). 43.9% of residents with a migration background were born abroad themselves. Since 2022 the share has risen by 1.3 percentage points.

Residents: 2,010 on 1 January 2026
Migration background: 14.2% 285 people
Born abroad: 43.9% of those with a migration background
Change since 2022: +1.3 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% 14%

Dutch origin 85.8% 1,725
Migration background 14.2% 285

Largest origin groups

Bars show each group’s share of all residents of 3737. For comparison, the line marks Municipality of De Bilt and the circle the Netherlands.

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

3.7% 75 people

Municipality of De Bilt 4.2% Netherlands 5.6%
Indonesia

2.2% 45 people

Municipality of De Bilt 2.9% Netherlands 1.9%
Germany

2.0% 40 people

Municipality of De Bilt 1.7% Netherlands 1.9%
Other Asia Asia excluding Indonesia and Turkey

1.7% 35 people

Municipality of De Bilt 4.0% Netherlands 5.3%
Other Americas & Oceania Americas and Oceania excluding Suriname and the Dutch Caribbean

1.5% 30 people

Municipality of De Bilt 1.6% Netherlands 1.7%
Morocco

0.50% 10 people

Municipality of De Bilt 3.3% Netherlands 2.4%
Suriname

0.50% 10 people

Municipality of De Bilt 0.84% Netherlands 2.0%
Dutch Caribbean Aruba, Curaçao, Sint Maarten, Bonaire, Sint Eustatius and Saba

0.50% 10 people

Municipality of De Bilt 0.54% Netherlands 1.1%
Belgium

0.50% 10 people

Municipality of De Bilt 0.62% Netherlands 0.76%
Other Africa Africa excluding Morocco

0.50% 10 people

Municipality of De Bilt 1.8% Netherlands 2.3%
Turkey

0.25% 5 people

Municipality of De Bilt 0.72% Netherlands 2.6%
Poland

0.25% 5 people

Municipality of De Bilt 0.35% Netherlands 1.4%

First and second generation

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

44% 56%

Born abroad (first generation) 43.9% 125
Born in the Netherlands (second generation) 56.1% 160

Men and women

Men: 1,035
Women: 975

Compared with all postcodes

Netherlands 29.1% 3737 14.2%

Higher than 38% 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

14.2%

3737
Municipality of De Bilt
Netherlands

Show as table

Year	3737	Municipality of De Bilt	Netherlands
1998	9.8%	13.3%	16.7%
1999	9.2%	13.4%	17.1%
2000	9.6%	13.5%	17.5%
2001	10.1%	13.9%	18.0%
2002	14.8%	14.3%	18.4%
2003	16.3%	14.5%	18.8%
2004	10.0%	14.4%	19.0%
2005	9.8%	14.4%	19.2%
2006	9.6%	14.4%	19.3%
2007	9.5%	14.5%	19.4%
2008	9.6%	14.6%	19.6%
2009	9.5%	14.9%	19.9%
2010	9.8%	15.1%	20.3%
2011	9.8%	15.4%	20.6%
2012	9.9%	15.7%	20.9%
2013	9.6%	15.9%	21.1%
2014	9.5%	16.2%	21.4%
2015	10.8%	16.5%	21.7%
2016	10.8%	16.7%	22.1%
2017	11.3%	17.1%	22.6%
2018	11.0%	17.5%	23.1%
2019	11.5%	17.9%	23.6%
2020	11.6%	18.3%	24.2%
2021	12.1%	18.7%	24.6%
2022	12.9%	20.6%	26.0%
2023	14.0%	21.6%	27.1%
2024	14.0%	22.2%	27.9%
2025	14.0%	22.5%	28.5%
2026	14.2%	22.6%	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
3723 De Leijen, Noord	24.5%	10,195	+2.4 pp	Other Europe
3721 Zuid West	30.2%	8,480	+3.0 pp	Other Asia
3731 West	20.1%	6,150	+0.4 pp	Other Europe
3573 Noordoost	30.8%	5,175	+6.1 pp	Other Asia
3738 Maartensdijk	15.6%	4,905	+2.2 pp	Other Asia
3612 Oud Maarsseveen, Molenpolder	12.4%	1,820	+0.5 pp	Other Europe
3615 Westbroek	9.5%	1,205	+1.4 pp	Other Europe
3566 Overvecht	17.9%	335	+1.7 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	1,830	1,655	180	95	85	0	0	5	60	5	45	0	10	40	0	5	10	155	20
1999	1,845	1,670	170	90	90	0	0	5	55	5	40	5	5	40	5	5	15	150	20
2000	1,825	1,650	175	95	80	0	0	10	50	0	45	0	5	45	0	10	10	155	20
2001	1,840	1,655	185	100	80	0	0	10	50	0	50	0	5	45	5	5	10	160	30
2002	1,955	1,665	290	140	150	0	0	10	45	0	60	5	5	70	40	40	15	190	95
2003	1,995	1,670	325	160	160	0	0	10	50	5	60	0	10	90	50	45	0	210	115
2004	1,845	1,665	185	115	75	0	0	10	50	0	55	0	10	50	0	0	15	165	20
2005	1,880	1,695	185	105	80	0	0	15	50	0	55	0	10	40	5	0	10	155	25
2006	1,880	1,700	180	105	75	0	0	15	50	5	50	0	10	45	5	0	0	155	25
2007	1,900	1,720	180	95	90	5	0	10	50	5	50	5	5	35	5	5	10	160	25
2008	1,875	1,705	180	95	75	0	0	10	40	5	50	5	5	35	0	10	10	150	30
2009	1,885	1,700	180	100	85	0	0	10	50	0	45	0	5	50	5	5	15	150	30
2010	1,890	1,705	185	90	95	5	0	10	50	5	45	5	15	25	5	10	10	150	30
2011	1,890	1,705	185	90	90	5	0	10	50	5	45	5	15	25	5	10	5	150	30
2012	1,860	1,680	185	100	85	0	0	10	50	5	45	5	10	40	0	10	10	155	25
2013	1,880	1,705	180	95	85	0	0	10	50	5	45	5	10	35	5	5	10	150	25
2014	1,895	1,715	180	100	80	0	0	10	50	10	40	0	10	50	0	10	0	150	30
2015	1,895	1,690	205	105	95	0	5	10	50	10	40	5	10	50	0	15	10	160	40
2016	1,895	1,690	205	95	110	5	0	15	50	5	40	5	5	45	5	15	15	165	40
2017	1,900	1,685	215	105	110	5	0	15	50	5	35	10	5	55	5	15	15	170	45
2018	1,870	1,665	205	95	110	0	5	15	50	5	35	5	5	50	0	25	10	155	50
2019	1,875	1,660	215	95	120	0	5	15	50	5	35	5	5	50	0	30	15	155	55
2020	1,890	1,670	220	100	120	0	5	15	50	0	35	5	5	55	0	25	25	165	55
2021	1,940	1,705	235	105	130	0	5	15	50	5	35	5	10	55	5	30	20	170	65
2022	1,940	1,685	250	115	140	0	10	15	50	5	35	5	10	60	0	30	20	170	65
2023	1,965	1,690	275	130	145	5	5	15	50	5	40	5	10	75	0	35	30	185	70
2024	1,960	1,680	275	130	145	0	5	15	50	10	40	5	10	75	5	35	30	–	–
2025	1,970	1,695	275	120	155	0	5	15	50	10	40	5	10	65	10	40	25	–	–
2026	2,010	1,725	285	130	155	5	10	10	45	10	40	5	10	75	10	35	30	–	–

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