Postcode · Leiden, South Holland

Postcode 2334: Neighbourhood Boerhaavedistrict

On 1 January 2026, postcode 2334 in Leiden (Boerhaavedistrict) had 2,735 residents. 42.0% of them (1,150 people) have a migration background: they were born abroad or have at least one parent who was. That is higher than Leiden (38.2%) and higher than the national average (29.1%). The largest origin groups are other Asia (11.7%), other Europe (10.6%) and Indonesia (7.1%). 71.7% of residents with a migration background were born abroad themselves. Since 2022 the share has risen by 5.1 percentage points.

Residents: 2,735 on 1 January 2026
Migration background: 42.0% 1,150 people
Born abroad: 71.7% of those with a migration background
Change since 2022: +5.1 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

58% 42%

Dutch origin 58.0% 1,585
Migration background 42.0% 1,150

Largest origin groups

Bars show each group’s share of all residents of 2334. For comparison, the line marks Leiden and the circle the Netherlands.

Other Asia Asia excluding Indonesia and Turkey

11.7% 320 people

Leiden 7.4% Netherlands 5.3%
Other Europe Europe excluding the Netherlands, Belgium, Germany and Poland

10.6% 290 people

Leiden 9.6% Netherlands 5.6%
Indonesia

7.1% 195 people

Leiden 2.4% Netherlands 1.9%
Other Americas & Oceania Americas and Oceania excluding Suriname and the Dutch Caribbean

3.7% 100 people

Leiden 3.2% Netherlands 1.7%
Germany

2.6% 70 people

Leiden 2.0% Netherlands 1.9%
Other Africa Africa excluding Morocco

2.0% 55 people

Leiden 3.0% Netherlands 2.3%
Belgium

1.3% 35 people

Leiden 0.73% Netherlands 0.76%
Turkey

0.73% 20 people

Leiden 2.0% Netherlands 2.6%
Dutch Caribbean Aruba, Curaçao, Sint Maarten, Bonaire, Sint Eustatius and Saba

0.73% 20 people

Leiden 1.1% Netherlands 1.1%
Poland

0.73% 20 people

Leiden 1.2% Netherlands 1.4%
Suriname

0.55% 15 people

Leiden 1.4% Netherlands 2.0%
Morocco

0.18% 5 people

Leiden 4.2% Netherlands 2.4%

First and second generation

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

72% 28%

Born abroad (first generation) 71.7% 825
Born in the Netherlands (second generation) 28.3% 325

Men and women

Men: 1,325
Women: 1,410

Compared with all postcodes

Netherlands 29.1% 2334 42.0%

Higher than 87% 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

42.0%

2334
Leiden
Netherlands

Show as table

Year	2334	Leiden	Netherlands
1998	22.7%	21.2%	16.7%
1999	22.7%	21.7%	17.1%
2000	22.8%	22.5%	17.5%
2001	23.6%	23.1%	18.0%
2002	24.5%	24.0%	18.4%
2003	24.7%	24.8%	18.8%
2004	25.5%	25.4%	19.0%
2005	26.2%	25.7%	19.2%
2006	26.8%	25.9%	19.3%
2007	27.2%	26.1%	19.4%
2008	28.8%	26.6%	19.6%
2009	29.9%	27.2%	19.9%
2010	30.7%	27.4%	20.3%
2011	31.1%	27.9%	20.6%
2012	33.0%	28.3%	20.9%
2013	34.5%	28.5%	21.1%
2014	36.2%	29.0%	21.4%
2015	36.2%	29.3%	21.7%
2016	36.3%	29.8%	22.1%
2017	36.2%	30.2%	22.6%
2018	35.5%	30.6%	23.1%
2019	34.9%	31.3%	23.6%
2020	33.7%	32.2%	24.2%
2021	34.1%	32.2%	24.6%
2022	36.9%	34.0%	26.0%
2023	43.8%	35.6%	27.1%
2024	44.4%	36.5%	27.9%
2025	45.6%	37.5%	28.5%
2026	42.0%	38.2%	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
2312 Binnenstad-Noord	40.3%	14,565	+2.4 pp	Other Europe
2316 Noord	46.2%	10,760	+4.9 pp	Other Europe
2341 Oud Oegstgeest, Oudenhof	31.1%	10,030	+1.9 pp	Other Europe
2333 Boerhaavedistrict	49.3%	4,795	+14.2 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	2,355	1,825	535	205	330	5	0	30	185	20	55	5	45	100	20	35	35	410	120
1999	2,445	1,890	555	225	330	5	10	25	190	20	50	10	45	120	15	30	35	435	120
2000	2,410	1,855	550	235	315	5	0	25	175	20	45	10	55	125	15	45	30	435	115
2001	2,420	1,850	570	235	330	10	0	20	170	20	40	10	55	130	15	60	35	435	135
2002	2,405	1,810	590	245	345	10	5	25	160	20	50	15	50	130	10	80	35	430	160
2003	2,410	1,815	595	250	345	10	5	20	155	20	45	5	50	150	10	90	35	445	150
2004	2,375	1,770	605	245	360	10	5	20	160	20	50	5	45	145	15	85	45	440	165
2005	2,385	1,760	625	260	360	10	5	20	160	15	50	5	55	150	15	85	50	450	175
2006	2,335	1,705	625	265	365	10	0	15	140	15	50	5	55	155	15	110	60	440	185
2007	2,295	1,665	625	260	365	10	5	20	130	10	50	15	45	150	15	125	50	435	195
2008	2,290	1,630	660	270	390	10	0	20	130	10	50	10	55	155	20	150	50	440	215
2009	2,310	1,620	690	265	435	10	5	15	125	10	50	10	50	155	25	185	60	435	255
2010	2,330	1,615	715	255	460	10	5	15	125	10	40	10	50	155	25	215	55	420	290
2011	2,270	1,560	705	255	455	10	5	15	120	10	45	10	50	150	20	225	50	410	295
2012	2,210	1,480	730	250	485	10	0	20	110	15	35	5	55	155	30	245	55	405	325
2013	2,245	1,470	775	275	510	10	5	15	115	15	40	10	50	175	30	260	60	425	350
2014	2,225	1,420	805	265	540	5	0	10	115	20	45	5	45	170	30	295	65	430	370
2015	2,250	1,435	815	255	565	5	5	10	120	15	40	10	45	160	20	310	80	430	390
2016	2,275	1,450	825	275	550	5	0	15	125	15	45	10	45	175	25	305	60	445	375
2017	2,460	1,570	890	295	595	5	5	15	155	15	50	15	45	185	30	290	80	500	390
2018	2,425	1,565	860	270	590	10	0	15	175	20	50	15	35	170	30	260	80	500	365
2019	2,495	1,625	870	290	580	10	0	15	180	20	60	10	40	180	35	230	90	520	350
2020	2,495	1,655	840	305	535	15	0	20	165	25	55	15	35	200	35	185	90	525	315
2021	2,495	1,645	850	325	530	20	5	15	145	20	65	15	40	205	25	205	95	530	325
2022	2,505	1,585	925	350	570	10	0	20	160	25	65	15	40	230	40	205	110	550	320
2023	2,810	1,580	1,230	590	635	20	5	20	160	20	65	15	50	460	35	260	115	800	375
2024	2,805	1,560	1,245	580	665	20	5	20	165	20	70	20	40	445	45	275	115	–	–
2025	2,895	1,575	1,320	595	725	30	5	20	185	20	75	20	40	460	45	320	105	–	–
2026	2,735	1,585	1,150	420	730	20	5	15	195	20	70	20	35	290	55	320	100	–	–

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