Postcode · Alkmaar, North Holland

Postcode 1823: Neighbourhood Oudorp

On 1 January 2026, postcode 1823 in Alkmaar (Oudorp) had 7,535 residents. 29.1% of them (2,190 people) have a migration background: they were born abroad or have at least one parent who was. That is about the same as Alkmaar (29.1%) and about the same as the national average (29.1%). The largest origin groups are other Asia (6.6%), other Europe (5.2%) and other Africa (3.6%). 57.8% of residents with a migration background were born abroad themselves. Since 2022 the share has risen by 1.8 percentage points.

Residents: 7,535 on 1 January 2026
Migration background: 29.1% 2,190 people
Born abroad: 57.8% of those with a migration background
Change since 2022: +1.8 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

71% 29%

Dutch origin 70.9% 5,345
Migration background 29.1% 2,190

Largest origin groups

Bars show each group’s share of all residents of 1823. For comparison, the line marks Alkmaar and the circle the Netherlands.

Other Asia Asia excluding Indonesia and Turkey

6.6% 500 people

Alkmaar 5.4% Netherlands 5.3%
Other Europe Europe excluding the Netherlands, Belgium, Germany and Poland

5.2% 395 people

Alkmaar 6.0% Netherlands 5.6%
Other Africa Africa excluding Morocco

3.6% 270 people

Alkmaar 2.6% Netherlands 2.3%
Turkey

3.1% 230 people

Alkmaar 2.7% Netherlands 2.6%
Morocco

1.9% 145 people

Alkmaar 2.3% Netherlands 2.4%
Indonesia

1.9% 145 people

Alkmaar 2.1% Netherlands 1.9%
Other Americas & Oceania Americas and Oceania excluding Suriname and the Dutch Caribbean

1.9% 145 people

Alkmaar 2.4% Netherlands 1.7%
Germany

1.5% 110 people

Alkmaar 1.7% Netherlands 1.9%
Suriname

1.4% 105 people

Alkmaar 1.6% Netherlands 2.0%
Dutch Caribbean Aruba, Curaçao, Sint Maarten, Bonaire, Sint Eustatius and Saba

1.1% 85 people

Alkmaar 1.3% Netherlands 1.1%
Poland

0.46% 35 people

Alkmaar 0.78% Netherlands 1.4%
Belgium

0.33% 25 people

Alkmaar 0.37% Netherlands 0.76%

First and second generation

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

58% 42%

Born abroad (first generation) 57.8% 1,265
Born in the Netherlands (second generation) 42.2% 925

Men and women

Men: 3,695
Women: 3,840

Compared with all postcodes

Netherlands 29.1% 1823 29.1%

Higher than 74% 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

29.1%

1823
Alkmaar
Netherlands

Show as table

Year	1823	Alkmaar	Netherlands
1998	21.0%	20.1%	16.7%
1999	21.0%	20.5%	17.1%
2000	21.4%	20.8%	17.5%
2001	21.6%	21.4%	18.0%
2002	21.3%	21.8%	18.4%
2003	21.5%	22.1%	18.8%
2004	21.6%	22.5%	19.0%
2005	21.7%	22.5%	19.2%
2006	21.5%	22.5%	19.3%
2007	21.4%	22.4%	19.4%
2008	20.9%	22.6%	19.6%
2009	21.2%	22.8%	19.9%
2010	21.6%	23.1%	20.3%
2011	22.1%	23.3%	20.6%
2012	22.2%	23.4%	20.9%
2013	22.7%	23.5%	21.1%
2014	22.8%	23.5%	21.4%
2015	23.0%	23.6%	21.7%
2016	23.5%	23.9%	22.1%
2017	23.7%	24.4%	22.6%
2018	24.0%	24.6%	23.1%
2019	24.2%	24.6%	23.6%
2020	25.1%	25.0%	24.2%
2021	25.6%	25.3%	24.6%
2022	27.2%	26.7%	26.0%
2023	27.9%	27.6%	27.1%
2024	28.6%	28.2%	27.9%
2025	29.1%	28.6%	28.5%
2026	29.1%	29.1%	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
1824 Huiswaard	33.9%	7,785	+4.3 pp	Other Asia
1815 Zuid, Centrum	21.2%	7,400	+3.3 pp	Other Europe
1822 Vroonermeer, Oudorp	23.5%	6,520	+0.3 pp	Other Asia
1834 Sint-Pancras kern, Twuyverhoek en Oostwal	13.3%	5,870	+1.3 pp	Other Europe
1811 Centrum	27.1%	5,435	+3.3 pp	Other Europe
1829 Centrum, Noord en Oudorp-Oost	17.5%	4,025	+2.2 pp	Other Europe
1821 Oudorp	21.4%	2,075	+1.3 pp	Other Europe

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	6,225	4,915	1,310	385	925	305	90	75	155	55	125	15	15	230	90	90	65	570	745
1999	6,180	4,885	1,295	390	910	300	80	70	155	45	125	15	15	235	95	90	75	565	730
2000	6,285	4,940	1,345	415	925	300	80	70	165	55	135	20	15	245	90	90	75	600	745
2001	6,350	4,980	1,370	410	960	290	85	85	160	70	135	15	15	245	85	115	70	595	775
2002	6,355	5,000	1,355	425	935	270	85	90	160	60	135	15	15	260	90	115	65	600	755
2003	6,465	5,075	1,390	435	955	280	90	95	155	55	135	15	20	265	90	120	70	610	780
2004	6,500	5,095	1,405	430	980	280	100	95	140	55	130	20	20	260	110	125	75	590	815
2005	6,440	5,040	1,400	425	980	260	105	95	135	60	130	20	20	255	120	135	70	580	820
2006	6,475	5,085	1,390	415	975	270	110	85	130	50	130	15	20	250	110	145	75	565	830
2007	6,365	5,000	1,365	390	970	260	100	80	120	65	120	15	20	235	110	165	70	540	820
2008	6,620	5,235	1,385	390	995	255	115	70	130	80	125	20	20	225	95	170	80	550	840
2009	6,770	5,335	1,435	390	1,035	270	110	90	140	70	125	20	15	230	95	180	80	560	870
2010	6,805	5,335	1,470	400	1,065	255	125	90	145	75	130	15	20	235	95	180	100	580	890
2011	6,700	5,220	1,480	415	1,075	250	130	85	145	75	125	20	20	250	105	185	100	585	895
2012	6,745	5,245	1,500	420	1,075	255	135	85	145	75	115	25	20	260	105	190	85	595	905
2013	6,710	5,185	1,525	440	1,085	255	125	90	145	75	115	25	15	285	105	200	90	610	915
2014	6,735	5,200	1,535	445	1,095	265	135	75	140	75	115	25	15	290	100	200	105	620	915
2015	6,725	5,175	1,550	460	1,095	240	135	80	135	70	110	30	15	305	110	225	100	625	925
2016	6,725	5,145	1,580	465	1,115	250	120	80	135	80	100	35	15	315	110	260	80	625	955
2017	6,800	5,190	1,610	470	1,140	245	125	75	140	80	100	30	15	325	110	285	80	635	980
2018	6,935	5,270	1,665	480	1,185	230	115	80	145	75	95	35	15	335	130	320	90	650	1,015
2019	6,950	5,270	1,680	475	1,210	220	115	80	140	80	100	30	15	330	150	330	95	645	1,040
2020	7,080	5,305	1,775	495	1,280	220	120	90	140	70	95	30	25	345	180	370	90	665	1,110
2021	7,135	5,310	1,825	490	1,335	215	130	90	150	70	95	35	20	340	205	380	95	675	1,155
2022	7,110	5,175	1,935	470	1,465	225	135	90	155	80	95	35	20	325	225	440	125	655	1,220
2023	7,090	5,110	1,980	490	1,490	220	145	100	145	80	95	35	20	335	220	455	130	670	1,255
2024	7,420	5,295	2,125	530	1,595	240	145	105	150	80	110	40	25	360	240	485	150	–	–
2025	7,530	5,340	2,190	550	1,645	235	145	105	150	80	105	40	25	380	265	515	145	–	–
2026	7,535	5,345	2,190	565	1,625	230	145	105	145	85	110	35	25	395	270	500	145	–	–

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