Postcode · Nieuwer Ter Aa, Utrecht

Postcode 3626: Neighbourhood Polder Oukoop

On 1 January 2026, postcode 3626 in Nieuwer Ter Aa (Polder Oukoop) had 730 residents. 10.3% of them (75 people) have a migration background: they were born abroad or have at least one parent who was. That is lower than the municipality of Stichtse Vecht (23.8%) and lower than the national average (29.1%). The largest origin groups are other Europe (2.7%), other Africa (2.1%) and Germany (1.4%). 53.3% of residents with a migration background were born abroad themselves. Since 2022 the share has risen by 2.5 percentage points.

Residents: 730 on 1 January 2026
Migration background: 10.3% 75 people
Born abroad: 53.3% 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

90%

Dutch origin 90.4% 660
Migration background 10.3% 75

Largest origin groups

Bars show each group’s share of all residents of 3626. For comparison, the line marks Stichtse Vecht and the circle the Netherlands.

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

2.7% 20 people

Stichtse Vecht 4.5% Netherlands 5.6%
Other Africa Africa excluding Morocco

2.1% 15 people

Stichtse Vecht 1.8% Netherlands 2.3%
Germany

1.4% 10 people

Stichtse Vecht 1.5% Netherlands 1.9%
Suriname

0.68% 5 people

Stichtse Vecht 1.8% Netherlands 2.0%
Indonesia

0.68% 5 people

Stichtse Vecht 2.5% Netherlands 1.9%
Dutch Caribbean Aruba, Curaçao, Sint Maarten, Bonaire, Sint Eustatius and Saba

0.68% 5 people

Stichtse Vecht 0.67% Netherlands 1.1%
Belgium

0.68% 5 people

Stichtse Vecht 0.53% Netherlands 0.76%
Other Asia Asia excluding Indonesia and Turkey

0.68% 5 people

Stichtse Vecht 4.9% Netherlands 5.3%
Other Americas & Oceania Americas and Oceania excluding Suriname and the Dutch Caribbean

0.68% 5 people

Stichtse Vecht 1.6% Netherlands 1.7%
Turkey

0.0% 0 people

Stichtse Vecht 1.2% Netherlands 2.6%
Morocco

0.0% 0 people

Stichtse Vecht 2.0% Netherlands 2.4%
Poland

0.0% 0 people

Stichtse Vecht 0.60% Netherlands 1.4%

First and second generation

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

53% 47%

Born abroad (first generation) 53.3% 40
Born in the Netherlands (second generation) 46.7% 35

Men and women

Men: 370
Women: 360

Compared with all postcodes

Netherlands 29.1% 3626 10.3%

Higher than 21% 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

10.3%

3626
Stichtse Vecht
Netherlands

Show as table

Year	3626	Stichtse Vecht	Netherlands
1998	4.6%	14.2%	16.7%
1999	4.0%	14.5%	17.1%
2000	4.1%	14.6%	17.5%
2001	3.4%	14.7%	18.0%
2002	3.4%	14.8%	18.4%
2003	4.0%	15.1%	18.8%
2004	4.0%	15.3%	19.0%
2005	4.1%	15.4%	19.2%
2006	4.0%	15.5%	19.3%
2007	4.0%	15.6%	19.4%
2008	4.0%	15.8%	19.6%
2009	3.3%	16.0%	19.9%
2010	4.1%	16.0%	20.3%
2011	4.1%	16.2%	20.6%
2012	4.1%	16.3%	20.9%
2013	4.2%	16.7%	21.1%
2014	3.6%	16.8%	21.4%
2015	4.3%	17.0%	21.7%
2016	6.4%	17.3%	22.1%
2017	7.2%	17.6%	22.6%
2018	6.4%	18.0%	23.1%
2019	6.9%	18.3%	23.6%
2020	6.9%	18.8%	24.2%
2021	6.8%	19.2%	24.6%
2022	7.8%	20.7%	26.0%
2023	9.0%	22.1%	27.1%
2024	9.7%	22.7%	27.9%
2025	10.2%	23.3%	28.5%
2026	10.3%	23.8%	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
3621 Midden, Noord	22.0%	10,780	+2.6 pp	Other Asia
3645 Zuiderwaard-Westerheul, Plassengebied	19.1%	9,735	+2.8 pp	Other Europe
3628 Kockengen	13.0%	3,455	+2.8 pp	Other Europe
3634 Loenersloot	17.5%	485	+1.9 pp	Other Europe
3631 Nieuwersluis	19.6%	460	−1.5 pp	Indonesia

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	Suriname	Indonesia	Dutch Caribbean	Germany	Poland	Belgium	Other Europe	Other Africa	Other Asia	Other Americas & Oceania	Western migration background	Non-Western migration background
1998	755	720	35	10	20	0	5	15	0	5	0	0	5	0	0	0	30	10
1999	750	720	30	10	20	0	5	10	0	0	0	5	5	0	5	0	25	5
2000	735	705	30	10	20	0	5	10	0	0	0	5	5	0	0	5	25	5
2001	740	720	25	5	15	0	5	10	0	0	0	5	0	0	0	0	20	10
2002	725	700	25	10	15	0	0	10	0	0	0	5	5	0	0	5	15	10
2003	755	725	30	10	15	0	5	10	0	5	0	0	5	0	5	0	20	10
2004	755	720	30	10	20	0	5	5	0	5	0	5	0	5	5	0	20	5
2005	735	705	30	10	15	0	5	10	0	5	0	5	0	0	0	0	20	10
2006	745	715	30	15	20	0	5	10	0	0	0	0	15	0	0	5	20	10
2007	755	725	30	10	15	0	5	5	0	5	0	0	5	0	5	0	20	10
2008	745	715	30	15	10	0	5	10	0	0	0	5	10	0	0	0	15	10
2009	750	725	25	15	15	0	5	5	0	0	0	5	10	5	0	0	15	10
2010	735	705	30	15	20	0	5	0	0	5	0	5	5	5	10	0	15	10
2011	725	700	30	10	15	0	10	0	0	0	0	0	10	5	5	0	20	15
2012	725	695	30	10	15	0	5	5	0	0	0	0	10	5	0	0	20	10
2013	710	685	30	10	15	0	10	5	0	0	0	5	5	5	0	0	15	15
2014	690	665	25	15	15	0	5	0	0	0	0	5	10	5	5	0	15	15
2015	690	660	30	15	15	0	0	5	5	0	0	0	15	5	0	0	15	15
2016	700	655	45	20	25	0	5	5	0	0	5	5	10	10	0	5	25	15
2017	695	645	50	20	30	0	5	5	0	5	5	5	5	10	0	10	35	15
2018	705	660	45	20	30	0	0	5	0	0	5	5	10	5	5	15	30	15
2019	720	670	50	25	25	0	5	5	0	5	5	0	15	5	5	5	35	15
2020	720	670	50	25	25	5	0	5	0	5	5	0	15	5	5	5	35	15
2021	740	690	50	30	25	0	5	5	0	5	10	0	15	5	5	5	40	15
2022	705	650	55	30	25	5	5	5	5	10	5	0	15	5	5	5	40	15
2023	725	660	65	35	30	0	5	5	0	10	5	0	20	10	5	5	45	15
2024	725	655	70	35	35	0	5	5	0	5	5	5	15	10	5	5	–	–
2025	735	655	75	40	40	0	5	5	5	5	5	5	20	15	5	10	–	–
2026	730	660	75	35	40	0	5	5	5	10	0	5	20	15	5	5	–	–

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