Postcode · Dokkum, Friesland

Postcode 9103: Neighbourhoods Kooilanden and Jantjeszeepolder

On 1 January 2026, postcode 9103 in Dokkum (Kooilanden and Jantjeszeepolder) had 2,525 residents. 5.0% of them (125 people) have a migration background: they were born abroad or have at least one parent who was. That is lower than Dokkum (10.6%) and lower than the national average (29.1%). The largest origin groups are other Asia (1.2%), other Europe (1.0%) and Indonesia (0.59%). 44.0% of residents with a migration background were born abroad themselves. Since 2022 the share has risen by 0.9 percentage points.

Residents: 2,525 on 1 January 2026
Migration background: 5.0% 125 people
Born abroad: 44.0% of those with a migration background
Change since 2022: +0.9 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

95%

Dutch origin 95.0% 2,400
Migration background 5.0% 125

Largest origin groups

Bars show each group’s share of all residents of 9103. For comparison, the line marks Dokkum and the circle the Netherlands.

Other Asia Asia excluding Indonesia and Turkey

1.2% 30 people

Dokkum 3.4% Netherlands 5.3%
Other Europe Europe excluding the Netherlands, Belgium, Germany and Poland

1.0% 25 people

Dokkum 2.8% Netherlands 5.6%
Indonesia

0.59% 15 people

Dokkum 0.77% Netherlands 1.9%
Germany

0.59% 15 people

Dokkum 0.77% Netherlands 1.9%
Other Americas & Oceania Americas and Oceania excluding Suriname and the Dutch Caribbean

0.59% 15 people

Dokkum 0.88% Netherlands 1.7%
Other Africa Africa excluding Morocco

0.40% 10 people

Dokkum 0.77% Netherlands 2.3%
Morocco

0.20% 5 people

Dokkum 0.12% Netherlands 2.4%
Suriname

0.20% 5 people

Dokkum 0.38% Netherlands 2.0%
Poland

0.20% 5 people

Dokkum 0.15% Netherlands 1.4%
Belgium

0.20% 5 people

Dokkum 0.15% Netherlands 0.76%
Turkey

0.0% 0 people

Dokkum 0.19% Netherlands 2.6%
Dutch Caribbean Aruba, Curaçao, Sint Maarten, Bonaire, Sint Eustatius and Saba

0.0% 0 people

Dokkum 0.19% Netherlands 1.1%

First and second generation

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

44% 56%

Born abroad (first generation) 44.0% 55
Born in the Netherlands (second generation) 56.0% 70

Men and women

Men: 1,235
Women: 1,290

Compared with all postcodes

Netherlands 29.1% 9103 5.0%

Higher than 2% 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

5.0%

9103
Dokkum
Netherlands

Show as table

Year	9103	Dokkum	Netherlands
1998	12.0%	6.5%	16.7%
1999	12.0%	6.8%	17.1%
2000	10.0%	6.7%	17.5%
2001	19.4%	9.1%	18.0%
2002	21.9%	10.1%	18.4%
2003	18.3%	9.4%	18.8%
2004	20.2%	10.1%	19.0%
2005	20.8%	10.3%	19.2%
2006	20.6%	10.2%	19.3%
2007	19.7%	9.9%	19.4%
2008	17.4%	9.3%	19.6%
2009	14.8%	8.8%	19.9%
2010	7.5%	6.8%	20.3%
2011	3.8%	6.0%	20.6%
2012	3.7%	6.0%	20.9%
2013	3.6%	5.8%	21.1%
2014	3.8%	6.1%	21.4%
2015	3.8%	6.2%	21.7%
2016	3.7%	6.5%	22.1%
2017	3.6%	6.6%	22.6%
2018	3.7%	6.8%	23.1%
2019	3.9%	6.9%	23.6%
2020	3.6%	7.1%	24.2%
2021	3.4%	7.0%	24.6%
2022	4.0%	7.8%	26.0%
2023	4.5%	8.7%	27.1%
2024	4.7%	9.7%	27.9%
2025	4.7%	10.3%	28.5%
2026	5.0%	10.6%	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
9101 Dokkum binnen de Bolwerken	12.9%	9,485	+3.5 pp	Other Asia
9104 Centrum	6.5%	5,655	+1.7 pp	Other Europe
9113 Oost	3.1%	975	+0.4 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	2,375	2,090	285	75	215	0	0	0	20	0	30	0	0	45	50	130	15	100	185
1999	2,585	2,280	310	80	230	0	0	0	15	0	35	0	5	40	50	150	15	105	205
2000	2,610	2,355	260	80	175	5	0	0	20	0	35	0	5	40	45	100	5	110	150
2001	3,070	2,475	595	145	450	20	0	0	20	0	40	0	5	100	115	295	0	170	425
2002	3,340	2,610	730	180	550	20	0	0	25	0	40	0	0	140	170	330	5	205	525
2003	3,355	2,735	615	160	460	20	0	0	20	0	35	0	5	120	155	260	5	185	435
2004	3,510	2,800	710	195	505	35	0	0	20	0	45	0	0	150	180	265	5	230	480
2005	3,560	2,815	740	230	510	30	0	0	30	5	45	0	5	180	190	250	5	265	480
2006	3,585	2,840	740	250	495	20	0	0	25	0	45	0	5	200	200	235	15	285	455
2007	3,535	2,840	695	235	460	25	0	0	25	5	40	0	5	190	170	215	20	270	425
2008	3,445	2,845	600	180	420	15	0	5	25	5	35	0	0	145	145	220	5	215	385
2009	3,310	2,820	490	90	405	5	0	0	25	5	30	0	0	60	155	195	20	120	375
2010	2,995	2,770	225	65	160	5	5	5	20	5	25	0	0	40	35	75	10	95	130
2011	2,885	2,780	110	45	65	0	0	0	20	0	25	0	5	15	10	15	20	65	40
2012	2,850	2,745	105	35	70	5	5	0	20	0	20	0	0	15	0	15	25	65	40
2013	2,810	2,705	100	40	60	0	0	0	20	0	20	0	5	15	5	15	20	65	40
2014	2,775	2,670	105	45	60	0	0	0	20	0	20	0	5	20	5	20	15	70	30
2015	2,735	2,630	105	45	60	0	0	0	20	0	20	5	5	15	10	20	10	75	35
2016	2,695	2,595	100	45	55	0	5	0	15	0	15	10	5	15	5	20	10	65	35
2017	2,665	2,570	95	40	50	0	5	0	15	0	15	5	5	15	0	20	10	60	35
2018	2,675	2,575	100	40	60	0	0	0	15	0	15	5	5	15	10	20	15	60	35
2019	2,670	2,565	105	40	60	0	5	0	15	5	20	5	5	10	5	20	10	60	45
2020	2,630	2,535	95	35	60	0	5	0	15	5	15	0	5	15	5	20	10	50	45
2021	2,615	2,525	90	35	55	0	0	0	15	5	10	5	5	15	10	15	10	55	35
2022	2,610	2,505	105	35	70	0	5	0	20	0	15	5	5	20	5	25	20	55	40
2023	2,565	2,455	115	45	70	0	5	0	15	0	10	5	0	20	5	25	20	60	40
2024	2,570	2,450	120	45	80	0	5	5	15	0	15	5	0	20	5	30	20	–	–
2025	2,540	2,420	120	40	75	0	5	5	15	0	15	5	0	20	5	30	15	–	–
2026	2,525	2,400	125	50	75	0	5	5	15	0	15	5	5	25	10	30	15	–	–

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