Postcode · Kolham, Groningen

Postcode 9615: Migration background and origin

On 1 January 2026, postcode 9615 in Kolham had 1,390 residents. 11.5% of them (160 people) have a migration background: they were born abroad or have at least one parent who was. That is lower than the municipality of Midden-Groningen (18.6%) and lower than the national average (29.1%). The largest origin groups are other Europe (2.5%), other Asia (2.2%) and Germany (1.8%). 53.1% of residents with a migration background were born abroad themselves. Since 2022 the share has risen by 2.0 percentage points.

Residents: 1,390 on 1 January 2026
Migration background: 11.5% 160 people
Born abroad: 53.1% of those with a migration background
Change since 2022: +2.0 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

88%

Dutch origin 88.1% 1,225
Migration background 11.5% 160

Largest origin groups

Bars show each group’s share of all residents of 9615. For comparison, the line marks Midden-Groningen and the circle the Netherlands.

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

2.5% 35 people

Midden-Groningen 3.5% Netherlands 5.6%
Other Asia Asia excluding Indonesia and Turkey

2.2% 30 people

Midden-Groningen 2.8% Netherlands 5.3%
Germany

1.8% 25 people

Midden-Groningen 1.7% Netherlands 1.9%
Suriname

1.1% 15 people

Midden-Groningen 2.2% Netherlands 2.0%
Indonesia

1.1% 15 people

Midden-Groningen 1.4% Netherlands 1.9%
Other Americas & Oceania Americas and Oceania excluding Suriname and the Dutch Caribbean

1.1% 15 people

Midden-Groningen 0.91% Netherlands 1.7%
Turkey

0.72% 10 people

Midden-Groningen 2.0% Netherlands 2.6%
Dutch Caribbean Aruba, Curaçao, Sint Maarten, Bonaire, Sint Eustatius and Saba

0.36% 5 people

Midden-Groningen 1.2% Netherlands 1.1%
Poland

0.36% 5 people

Midden-Groningen 0.74% Netherlands 1.4%
Belgium

0.36% 5 people

Midden-Groningen 0.21% Netherlands 0.76%
Other Africa Africa excluding Morocco

0.36% 5 people

Midden-Groningen 1.4% Netherlands 2.3%
Morocco

0.0% 0 people

Midden-Groningen 0.48% Netherlands 2.4%

First and second generation

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

53% 47%

Born abroad (first generation) 53.1% 85
Born in the Netherlands (second generation) 46.9% 75

Men and women

Men: 710
Women: 675

Compared with all postcodes

Netherlands 29.1% 9615 11.5%

Higher than 26% 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

11.5%

9615
Midden-Groningen
Netherlands

Show as table

Year	9615	Midden-Groningen	Netherlands
1998	5.0%	10.6%	16.7%
1999	4.7%	10.7%	17.1%
2000	4.7%	10.9%	17.5%
2001	4.7%	11.2%	18.0%
2002	4.4%	11.4%	18.4%
2003	4.7%	11.6%	18.8%
2004	5.7%	11.6%	19.0%
2005	6.4%	11.8%	19.2%
2006	6.1%	11.9%	19.3%
2007	6.8%	12.0%	19.4%
2008	6.2%	12.0%	19.6%
2009	6.0%	12.3%	19.9%
2010	6.6%	12.5%	20.3%
2011	6.3%	12.7%	20.6%
2012	7.0%	12.9%	20.9%
2013	7.7%	13.0%	21.1%
2014	7.8%	13.1%	21.4%
2015	7.5%	13.3%	21.7%
2016	7.5%	13.4%	22.1%
2017	8.0%	13.7%	22.6%
2018	8.6%	14.1%	23.1%
2019	8.6%	14.5%	23.6%
2020	8.2%	14.8%	24.2%
2021	8.2%	15.1%	24.6%
2022	9.5%	16.0%	26.0%
2023	10.2%	17.2%	27.1%
2024	10.7%	17.7%	27.9%
2025	11.9%	18.1%	28.5%
2026	11.5%	18.6%	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
9611 Magrietpark	16.5%	8,310	+3.0 pp	Other Europe
9601 Foxham en Hoogezand-Noord	27.5%	6,920	+5.2 pp	Other Europe
9608 Westerbroek en Waterhuizen	12.6%	875	−0.9 pp	Other Europe
9619 Froombosch	6.1%	820	+1.2 pp	Germany
9616 Harkstede, Scharmer en Woudbloem	25.2%	535	+11.4 pp	Other Europe
9618 Harkstede, Scharmer en Woudbloem	10.0%	100	+0.5 pp	Germany

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	1,505	1,440	75	40	25	0	0	5	15	0	25	5	5	5	5	0	5	50	15
1999	1,495	1,420	70	35	40	0	0	5	10	0	20	5	5	5	10	5	10	55	15
2000	1,495	1,425	70	45	30	0	0	10	10	0	25	0	5	15	5	0	5	60	15
2001	1,480	1,410	70	45	25	0	0	5	15	0	25	5	5	10	0	0	5	60	10
2002	1,485	1,415	65	40	15	0	0	5	10	0	30	5	5	0	0	0	0	60	10
2003	1,490	1,425	70	40	20	0	0	5	15	0	25	0	5	10	0	0	0	60	5
2004	1,485	1,405	85	55	35	0	0	5	10	0	30	0	5	20	5	5	10	70	15
2005	1,485	1,395	95	55	30	0	0	5	15	5	30	0	10	15	0	5	0	75	15
2006	1,480	1,390	90	55	35	0	0	5	15	5	25	5	5	20	5	0	5	75	15
2007	1,535	1,430	105	60	50	0	0	10	20	10	30	0	10	20	10	0	5	80	20
2008	1,455	1,370	90	60	40	0	0	5	15	5	30	0	10	20	5	0	10	75	10
2009	1,405	1,315	85	55	35	0	0	0	15	5	30	0	10	15	5	5	5	75	15
2010	1,370	1,280	90	55	35	0	0	0	15	5	25	0	10	20	5	0	10	75	10
2011	1,355	1,265	85	50	35	0	0	0	15	5	25	5	15	5	5	0	10	75	15
2012	1,360	1,260	95	55	35	0	0	5	15	10	30	0	10	15	0	0	5	75	20
2013	1,360	1,255	105	60	40	0	0	5	15	10	30	5	10	15	5	0	5	80	25
2014	1,345	1,240	105	60	45	0	0	10	20	0	25	0	15	20	10	0	5	80	30
2015	1,340	1,240	100	50	50	0	0	5	15	5	30	0	10	10	10	10	5	75	30
2016	1,340	1,240	100	45	55	0	0	5	20	5	25	0	10	10	10	10	5	70	30
2017	1,315	1,210	105	50	55	0	0	5	15	5	30	0	10	10	5	20	5	75	30
2018	1,335	1,220	115	55	60	0	0	10	10	5	25	5	10	15	5	30	0	70	45
2019	1,340	1,225	115	55	65	0	5	10	15	0	30	0	10	15	0	25	10	70	45
2020	1,345	1,235	110	55	55	0	0	10	10	0	25	0	10	20	0	25	10	70	40
2021	1,345	1,235	110	60	50	0	5	10	15	0	25	5	5	25	0	10	10	75	30
2022	1,365	1,235	130	65	60	0	0	10	15	5	30	5	10	25	5	20	10	85	40
2023	1,375	1,235	140	65	75	0	0	10	10	5	25	0	10	25	5	25	10	90	50
2024	1,360	1,215	145	70	75	5	5	10	15	10	30	5	5	30	5	25	10	–	–
2025	1,385	1,225	165	70	95	10	5	10	15	5	25	5	5	35	5	30	15	–	–
2026	1,390	1,225	160	65	95	10	0	15	15	5	25	5	5	35	5	30	15	–	–

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