Postcode · Alphen aan den Rijn, South Holland

Postcode 2401: Neighbourhood Oudshoorn

On 1 January 2026, postcode 2401 in Alphen aan den Rijn (Oudshoorn) had 9,305 residents. 31.0% of them (2,885 people) have a migration background: they were born abroad or have at least one parent who was. That is higher than Alphen aan den Rijn (29.6%) and higher than the national average (29.1%). The largest origin groups are other Asia (6.4%), Morocco (4.2%) and other Europe (3.9%). 54.4% of residents with a migration background were born abroad themselves. Since 2022 the share has risen by 2.3 percentage points.

Residents: 9,305 on 1 January 2026
Migration background: 31.0% 2,885 people
Born abroad: 54.4% of those with a migration background
Change since 2022: +2.3 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

69% 31%

Dutch origin 68.9% 6,415
Migration background 31.0% 2,885

Largest origin groups

Bars show each group’s share of all residents of 2401. For comparison, the line marks Alphen aan den Rijn and the circle the Netherlands.

Other Asia Asia excluding Indonesia and Turkey

6.4% 600 people

Alphen aan den Rijn 5.9% Netherlands 5.3%
Morocco

4.2% 390 people

Alphen aan den Rijn 3.4% Netherlands 2.4%
Other Europe Europe excluding the Netherlands, Belgium, Germany and Poland

3.9% 365 people

Alphen aan den Rijn 4.5% Netherlands 5.6%
Indonesia

3.1% 285 people

Alphen aan den Rijn 2.9% Netherlands 1.9%
Poland

2.6% 240 people

Alphen aan den Rijn 2.7% Netherlands 1.4%
Other Africa Africa excluding Morocco

2.6% 240 people

Alphen aan den Rijn 2.3% Netherlands 2.3%
Suriname

2.1% 200 people

Alphen aan den Rijn 1.9% Netherlands 2.0%
Turkey

1.9% 175 people

Alphen aan den Rijn 1.8% Netherlands 2.6%
Other Americas & Oceania Americas and Oceania excluding Suriname and the Dutch Caribbean

1.7% 155 people

Alphen aan den Rijn 1.6% Netherlands 1.7%
Germany

1.2% 110 people

Alphen aan den Rijn 1.2% Netherlands 1.9%
Dutch Caribbean Aruba, Curaçao, Sint Maarten, Bonaire, Sint Eustatius and Saba

1.1% 105 people

Alphen aan den Rijn 1.1% Netherlands 1.1%
Belgium

0.27% 25 people

Alphen aan den Rijn 0.37% Netherlands 0.76%

First and second generation

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

54% 46%

Born abroad (first generation) 54.4% 1,570
Born in the Netherlands (second generation) 45.6% 1,315

Men and women

Men: 4,690
Women: 4,615

Compared with all postcodes

Netherlands 29.1% 2401 31.0%

Higher than 77% 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

31.0%

2401
Alphen aan den Rijn
Netherlands

Show as table

Year	2401	Alphen aan den Rijn	Netherlands
1998	18.7%	17.0%	16.7%
1999	19.8%	17.6%	17.1%
2000	20.0%	18.1%	17.5%
2001	20.6%	18.5%	18.0%
2002	21.0%	19.0%	18.4%
2003	21.8%	19.4%	18.8%
2004	22.4%	19.4%	19.0%
2005	22.3%	19.5%	19.2%
2006	22.2%	19.5%	19.3%
2007	22.0%	19.6%	19.4%
2008	22.3%	20.0%	19.6%
2009	22.1%	20.3%	19.9%
2010	22.2%	20.6%	20.3%
2011	22.4%	20.8%	20.6%
2012	22.5%	21.0%	20.9%
2013	22.5%	21.2%	21.1%
2014	22.8%	21.3%	21.4%
2015	23.1%	21.5%	21.7%
2016	23.5%	21.9%	22.1%
2017	24.7%	22.7%	22.6%
2018	25.2%	23.3%	23.1%
2019	26.1%	23.9%	23.6%
2020	26.5%	24.4%	24.2%
2021	27.0%	24.9%	24.6%
2022	28.7%	26.2%	26.0%
2023	29.7%	27.4%	27.1%
2024	30.6%	28.1%	27.9%
2025	30.8%	28.6%	28.5%
2026	31.0%	29.6%	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
2402 Ridderveld	37.0%	13,460	+3.4 pp	Other Asia
2406 Lage Zijde	20.6%	9,725	+1.7 pp	Other Europe
2405 Hoge Zijde	27.6%	8,765	+4.9 pp	Other Europe
2404 Hoorn	40.9%	6,060	+9.7 pp	Other Asia
2396 Zuid, Noord	15.8%	4,125	+2.8 pp	Other Asia
2481 West	17.2%	3,700	+3.4 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	9,775	7,950	1,825	475	1,350	35	160	220	460	115	185	20	50	220	90	190	80	970	850
1999	9,810	7,860	1,945	470	1,480	50	160	220	480	125	180	15	35	240	140	220	85	985	960
2000	9,650	7,715	1,930	480	1,455	45	160	220	465	130	190	15	40	235	130	220	85	975	960
2001	9,590	7,615	1,975	475	1,500	55	185	215	460	130	190	20	35	230	125	245	85	965	1,010
2002	9,580	7,570	2,010	465	1,545	70	185	210	425	135	190	15	30	230	155	280	85	920	1,085
2003	9,600	7,505	2,090	450	1,635	80	225	210	415	140	180	20	30	220	175	305	85	900	1,190
2004	9,485	7,360	2,120	455	1,660	80	255	210	405	145	170	25	30	230	160	315	90	890	1,230
2005	9,445	7,335	2,110	460	1,655	95	260	225	405	135	170	25	35	230	125	320	90	895	1,215
2006	9,340	7,260	2,075	460	1,615	95	280	210	400	120	170	25	35	230	115	305	90	890	1,190
2007	9,495	7,410	2,085	465	1,625	105	270	215	390	105	170	25	25	245	120	330	90	885	1,200
2008	9,640	7,490	2,145	465	1,685	105	300	225	390	105	170	30	30	235	135	330	95	885	1,260
2009	9,585	7,470	2,115	440	1,675	120	305	210	370	100	170	30	25	215	130	345	95	850	1,265
2010	9,600	7,470	2,130	445	1,680	125	285	215	365	110	165	30	25	225	135	360	85	855	1,270
2011	9,520	7,385	2,130	455	1,675	135	295	200	375	105	155	45	25	230	140	330	95	870	1,265
2012	9,445	7,320	2,125	455	1,675	130	300	205	360	95	150	55	25	225	150	350	85	855	1,275
2013	9,450	7,325	2,125	455	1,665	140	300	205	355	90	145	55	20	235	155	330	90	855	1,270
2014	9,455	7,295	2,160	480	1,680	135	310	210	340	95	145	70	15	250	165	335	90	860	1,300
2015	9,425	7,250	2,175	495	1,680	135	325	205	345	90	140	80	20	255	155	340	85	880	1,295
2016	9,395	7,190	2,205	515	1,690	140	330	195	345	100	135	100	20	260	165	325	90	895	1,310
2017	9,365	7,055	2,310	570	1,740	145	345	185	335	105	140	120	25	285	165	360	100	935	1,375
2018	9,410	7,040	2,370	590	1,785	150	345	190	330	100	135	140	25	290	180	385	105	955	1,415
2019	9,330	6,895	2,435	590	1,845	160	360	190	315	100	135	155	20	280	195	410	115	950	1,480
2020	9,360	6,875	2,485	640	1,845	165	355	180	305	100	125	170	30	315	195	420	125	980	1,505
2021	9,240	6,745	2,495	635	1,865	160	355	190	300	95	125	175	30	305	210	425	130	975	1,525
2022	9,230	6,590	2,645	640	2,005	160	365	195	310	120	125	185	30	300	220	495	140	980	1,570
2023	9,260	6,515	2,750	670	2,075	180	380	200	310	115	115	210	30	315	215	520	145	1,020	1,645
2024	9,370	6,500	2,865	730	2,135	175	405	200	295	120	120	225	25	360	235	555	145	–	–
2025	9,385	6,490	2,895	755	2,140	175	400	200	285	110	115	240	30	370	235	585	145	–	–
2026	9,305	6,415	2,885	740	2,150	175	390	200	285	105	110	240	25	365	240	600	155	–	–

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