Postcode · Grou, Friesland

Postcode 9001: Migration background and origin

On 1 January 2026, postcode 9001 in Grou had 5,785 residents. 13.1% of them (755 people) have a migration background: they were born abroad or have at least one parent who was. That is lower than the municipality of Leeuwarden (22.5%) and lower than the national average (29.1%). The largest origin groups are other Europe (4.7%), other Asia (2.6%) and other Africa (1.2%). 68.9% of residents with a migration background were born abroad themselves. Since 2022 the share has risen by 3.8 percentage points.

Residents: 5,785 on 1 January 2026
Migration background: 13.1% 755 people
Born abroad: 68.9% of those with a migration background
Change since 2022: +3.8 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

87%

Dutch origin 86.9% 5,030
Migration background 13.1% 755

Largest origin groups

Bars show each group’s share of all residents of 9001. For comparison, the line marks Municipality of Leeuwarden and the circle the Netherlands.

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

4.7% 270 people

Municipality of Leeuwarden 4.8% Netherlands 5.6%
Other Asia Asia excluding Indonesia and Turkey

2.6% 150 people

Municipality of Leeuwarden 5.2% Netherlands 5.3%
Other Africa Africa excluding Morocco

1.2% 70 people

Municipality of Leeuwarden 2.8% Netherlands 2.3%
Germany

1.1% 65 people

Municipality of Leeuwarden 1.7% Netherlands 1.9%
Indonesia

1.0% 55 people

Municipality of Leeuwarden 1.7% Netherlands 1.9%
Other Americas & Oceania Americas and Oceania excluding Suriname and the Dutch Caribbean

0.86% 50 people

Municipality of Leeuwarden 1.4% Netherlands 1.7%
Dutch Caribbean Aruba, Curaçao, Sint Maarten, Bonaire, Sint Eustatius and Saba

0.52% 30 people

Municipality of Leeuwarden 1.5% Netherlands 1.1%
Turkey

0.26% 15 people

Municipality of Leeuwarden 0.65% Netherlands 2.6%
Poland

0.26% 15 people

Municipality of Leeuwarden 0.49% Netherlands 1.4%
Morocco

0.17% 10 people

Municipality of Leeuwarden 0.87% Netherlands 2.4%
Suriname

0.17% 10 people

Municipality of Leeuwarden 1.2% Netherlands 2.0%
Belgium

0.17% 10 people

Municipality of Leeuwarden 0.20% Netherlands 0.76%

First and second generation

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

69% 31%

Born abroad (first generation) 68.9% 520
Born in the Netherlands (second generation) 31.1% 235

Men and women

Men: 2,880
Women: 2,905

Compared with all postcodes

Netherlands 29.1% 9001 13.1%

Higher than 33% 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

13.1%

9001
Municipality of Leeuwarden
Netherlands

Show as table

Year	9001	Municipality of Leeuwarden	Netherlands
1998	4.6%	11.7%	16.7%
1999	4.7%	12.1%	17.1%
2000	4.4%	12.4%	17.5%
2001	4.6%	12.9%	18.0%
2002	5.1%	13.3%	18.4%
2003	5.2%	13.8%	18.8%
2004	5.6%	13.8%	19.0%
2005	5.6%	13.8%	19.2%
2006	5.8%	13.8%	19.3%
2007	5.9%	13.9%	19.4%
2008	5.8%	14.0%	19.6%
2009	5.7%	14.3%	19.9%
2010	5.6%	14.6%	20.3%
2011	5.8%	15.0%	20.6%
2012	6.1%	15.2%	20.9%
2013	6.3%	15.4%	21.1%
2014	6.2%	15.4%	21.4%
2015	6.7%	15.4%	21.7%
2016	6.7%	15.7%	22.1%
2017	6.9%	16.2%	22.6%
2018	7.4%	16.6%	23.1%
2019	8.4%	17.1%	23.6%
2020	8.8%	17.7%	24.2%
2021	8.5%	18.0%	24.6%
2022	9.2%	19.3%	26.0%
2023	12.5%	20.3%	27.1%
2024	10.3%	21.1%	27.9%
2025	12.1%	22.0%	28.5%
2026	13.1%	22.5%	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
8491 Boarnsterhim	10.1%	3,210	+1.7 pp	Other Asia
9005 Dorpen Zuid-Oost	8.6%	1,865	+0.8 pp	Other Asia
9216 Oudega (Smallingerland)	6.3%	1,660	+1.6 pp	Other Europe
9011 Grou	9.1%	1,380	+1.5 pp	Other Asia
9008 Grou	9.3%	1,080	+2.8 pp	Other Asia
8494 Boarnsterhim	5.2%	960	−0.1 pp	Indonesia
9003 Dorpen Zuid-Oost	9.7%	875	+3.1 pp	Germany
9009 Grou	0.0%	85	±0.0 pp	–
9007 Grou	0.0%	80	−5.9 pp	–
8497 Goëngahuizen	0.0%	45	±0.0 pp	–

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	5,490	5,240	250	130	120	0	0	10	45	5	80	0	5	45	25	20	15	185	65
1999	5,470	5,220	255	120	135	0	0	10	55	0	80	5	0	35	25	20	25	185	75
2000	5,445	5,205	240	105	135	0	0	10	45	5	75	0	5	25	30	30	15	160	80
2001	5,610	5,360	260	110	155	0	0	5	45	5	75	5	5	25	35	40	25	170	90
2002	5,730	5,430	295	120	185	0	0	5	50	5	70	0	5	45	40	50	35	190	110
2003	5,805	5,500	300	120	175	0	0	10	60	5	75	0	5	40	25	40	35	200	100
2004	5,910	5,585	330	140	185	0	0	10	65	10	80	0	5	55	25	55	20	220	110
2005	5,870	5,540	330	140	185	0	0	10	65	10	85	5	10	40	25	55	20	220	105
2006	5,800	5,465	335	150	195	0	0	15	55	15	85	5	10	50	25	60	25	225	110
2007	5,740	5,400	340	150	190	5	0	10	55	10	90	5	10	45	30	55	25	225	110
2008	5,655	5,335	330	150	175	0	0	10	55	10	85	5	5	55	30	50	20	225	100
2009	5,625	5,310	320	145	165	0	0	10	55	10	80	5	10	50	25	40	25	220	100
2010	5,640	5,325	315	140	170	0	0	10	55	10	70	5	5	60	30	40	25	210	110
2011	5,575	5,250	325	140	185	0	5	5	55	15	70	0	5	65	30	45	30	205	120
2012	5,630	5,285	345	140	210	5	5	10	60	15	70	0	5	65	40	50	25	215	130
2013	5,745	5,390	360	140	215	5	0	5	60	20	70	5	10	55	45	55	25	215	145
2014	5,770	5,415	355	135	220	5	0	10	55	20	65	0	10	60	45	60	25	200	155
2015	5,770	5,385	385	145	240	5	5	5	55	20	75	5	5	60	45	70	35	215	170
2016	5,730	5,345	385	145	240	0	10	10	60	25	60	5	10	70	45	65	25	210	170
2017	5,655	5,265	390	140	250	5	5	10	65	30	60	5	10	65	60	55	20	215	175
2018	5,715	5,290	425	150	275	5	5	10	60	30	70	5	5	70	65	80	20	220	205
2019	5,740	5,260	480	165	315	5	5	20	60	25	70	5	10	80	70	105	25	235	240
2020	5,760	5,255	505	180	320	5	5	15	60	30	80	10	5	85	70	105	30	255	250
2021	5,755	5,265	490	175	315	5	5	15	60	25	75	10	5	85	70	100	35	245	235
2022	5,685	5,165	525	180	350	5	5	20	65	25	75	15	10	80	75	120	40	245	245
2023	5,900	5,160	740	345	395	5	10	20	60	30	70	10	10	250	90	135	40	415	290
2024	5,715	5,125	590	205	385	10	10	15	60	30	75	15	10	105	75	140	40	–	–
2025	5,775	5,070	700	310	390	10	10	15	60	30	70	15	10	220	70	150	45	–	–
2026	5,785	5,030	755	360	395	15	10	10	55	30	65	15	10	270	70	150	50	–	–

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