City · Nieuwkoop, South Holland

Ter Aar: Migration background and origin

On 1 January 2026, Ter Aar had 9,775 residents. 15.3% of them (1,495 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 Nieuwkoop (14.7%) and lower than the national average (29.1%). The largest origin groups are other Asia (3.3%), Poland (2.9%) and other Europe (2.9%). 60.9% of residents with a migration background were born abroad themselves. Since 2022 the share has risen by 2.5 percentage points.

Residents: 9,775 on 1 January 2026
Migration background: 15.3% 1,495 people
Born abroad: 60.9% 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 per postcode.

Where residents come from

Origin of residents on 1 January 2026, as a share of all residents.

Dutch origin and migration background

85% 15%

Dutch origin 84.7% 8,280
Migration background 15.3% 1,495

Largest origin groups

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

Other Asia Asia excluding Indonesia and Turkey

3.3% 320 people

Municipality of Nieuwkoop 2.7% Netherlands 5.3%
Poland

2.9% 280 people

Municipality of Nieuwkoop 2.5% Netherlands 1.4%
Other Europe Europe excluding the Netherlands, Belgium, Germany and Poland

2.9% 280 people

Municipality of Nieuwkoop 2.9% Netherlands 5.6%
Other Africa Africa excluding Morocco

1.1% 105 people

Municipality of Nieuwkoop 1.1% Netherlands 2.3%
Other Americas & Oceania Americas and Oceania excluding Suriname and the Dutch Caribbean

1.1% 105 people

Municipality of Nieuwkoop 0.91% Netherlands 1.7%
Indonesia

0.92% 90 people

Municipality of Nieuwkoop 1.1% Netherlands 1.9%
Germany

0.92% 90 people

Municipality of Nieuwkoop 1.0% Netherlands 1.9%
Morocco

0.87% 85 people

Municipality of Nieuwkoop 1.0% Netherlands 2.4%
Suriname

0.66% 65 people

Municipality of Nieuwkoop 0.59% Netherlands 2.0%
Belgium

0.36% 35 people

Municipality of Nieuwkoop 0.29% Netherlands 0.76%
Dutch Caribbean Aruba, Curaçao, Sint Maarten, Bonaire, Sint Eustatius and Saba

0.26% 25 people

Municipality of Nieuwkoop 0.35% Netherlands 1.1%
Turkey

0.20% 20 people

Municipality of Nieuwkoop 0.30% Netherlands 2.6%

First and second generation

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

61% 39%

Born abroad (first generation) 60.9% 910
Born in the Netherlands (second generation) 39.1% 585

Men and women

Men: 4,910
Women: 4,865

Compared with all cities

Netherlands 29.1% Ter Aar 15.3%

Higher than 65% of all cities in the Netherlands

Trend since 1998

Share of residents with a migration background, compared with larger areas.

Show

Measure % Residents

New CBS classification

15.3%

Ter Aar
Municipality of Nieuwkoop
Netherlands

Show as table

Year	Ter Aar	Municipality of Nieuwkoop	Netherlands
1998	6.0%	7.0%	16.7%
1999	6.1%	7.2%	17.1%
2000	6.0%	7.1%	17.5%
2001	6.1%	7.3%	18.0%
2002	6.2%	7.3%	18.4%
2003	6.4%	7.3%	18.8%
2004	6.4%	7.4%	19.0%
2005	6.5%	7.4%	19.2%
2006	7.0%	7.6%	19.3%
2007	7.0%	7.7%	19.4%
2008	7.1%	7.7%	19.6%
2009	7.0%	7.8%	19.9%
2010	7.1%	8.1%	20.3%
2011	7.3%	8.2%	20.6%
2012	7.6%	8.3%	20.9%
2013	8.1%	8.5%	21.1%
2014	8.0%	8.7%	21.4%
2015	8.3%	8.9%	21.7%
2016	8.6%	9.1%	22.1%
2017	9.6%	9.8%	22.6%
2018	9.8%	10.3%	23.1%
2019	10.4%	10.8%	23.6%
2020	11.0%	11.2%	24.2%
2021	11.8%	11.7%	24.6%
2022	12.8%	12.5%	26.0%
2023	13.5%	13.4%	27.1%
2024	14.5%	13.8%	27.9%
2025	14.8%	14.2%	28.5%
2026	15.3%	14.7%	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).

Postcodes in Ter Aar

				Largest group
2461 Langeraar	15.3%	9,775	+2.5 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	9,160	8,615	550	205	340	0	75	30	125	15	100	10	10	85	30	30	35	360	185
1999	9,130	8,570	560	200	360	0	80	25	120	15	95	15	10	80	30	50	40	355	210
2000	9,070	8,530	545	195	350	0	75	30	110	15	95	10	15	75	30	55	35	335	210
2001	9,075	8,525	555	205	350	5	70	30	110	20	90	15	15	85	25	55	35	350	210
2002	9,085	8,525	560	210	345	5	65	30	110	20	90	10	20	90	30	45	40	355	200
2003	9,080	8,500	585	215	360	5	70	25	105	20	90	15	20	90	35	65	35	355	225
2004	9,010	8,430	580	215	370	5	65	30	105	20	80	15	20	100	30	75	40	350	235
2005	9,000	8,410	585	225	370	10	70	35	105	15	85	30	15	95	25	70	40	360	225
2006	8,990	8,365	625	245	375	10	70	35	105	15	80	50	10	105	30	70	40	385	240
2007	8,955	8,325	630	265	360	10	65	30	110	15	80	60	15	110	25	60	45	410	220
2008	8,855	8,235	625	270	350	10	65	30	95	15	85	50	15	120	30	60	45	405	220
2009	8,835	8,215	615	260	355	5	70	30	100	15	80	40	20	120	25	65	45	385	230
2010	8,910	8,275	635	265	365	5	75	35	95	15	80	55	15	115	30	65	45	385	250
2011	8,955	8,300	650	265	395	10	75	30	95	15	80	55	15	115	30	85	55	385	265
2012	8,900	8,230	675	285	385	5	65	35	85	15	80	75	15	115	40	90	50	400	275
2013	8,870	8,155	715	325	390	0	70	40	90	15	80	90	15	140	30	85	60	445	275
2014	8,815	8,110	705	330	375	0	70	40	80	10	80	95	15	140	35	85	55	435	275
2015	8,810	8,075	735	345	385	5	65	40	75	15	85	115	15	130	35	85	65	455	280
2016	8,905	8,140	765	345	420	5	70	45	80	15	80	120	15	130	50	100	55	455	310
2017	9,050	8,185	865	390	470	5	70	45	80	15	80	150	20	140	45	150	60	505	360
2018	9,155	8,255	900	405	495	0	75	55	80	20	75	155	20	155	50	165	50	510	390
2019	9,320	8,355	965	435	530	5	70	60	85	20	70	170	25	170	65	165	60	545	415
2020	9,425	8,385	1,040	480	555	5	75	60	85	20	75	200	25	180	65	175	70	600	440
2021	9,510	8,385	1,125	525	595	5	75	65	80	20	80	230	25	190	80	205	65	635	485
2022	9,585	8,350	1,230	555	675	5	80	60	95	20	85	250	30	190	85	240	90	660	505
2023	9,630	8,330	1,300	585	715	10	85	55	90	25	90	260	30	205	90	265	95	695	545
2024	9,725	8,315	1,410	650	760	20	85	60	90	25	95	285	30	245	95	280	100	–	–
2025	9,790	8,340	1,450	655	790	25	90	60	90	25	90	275	35	260	95	305	100	–	–
2026	9,775	8,280	1,495	680	815	20	85	65	90	25	90	280	35	280	105	320	105	–	–

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