Postcode · Leiden, South Holland

Postcode 2323: Neighbourhood Bos- en Gasthuisdistrict

On 1 January 2026, postcode 2323 in Leiden (Bos- en Gasthuisdistrict) had 205 residents. 24.4% of them (50 people) have a migration background: they were born abroad or have at least one parent who was. That is lower than Leiden (38.2%) and lower than the national average (29.1%). The largest origin groups are other Europe (4.9%), other Asia (4.9%) and Suriname (2.4%). 70.0% of residents with a migration background were born abroad themselves. Since 2022 the share has risen by 6.7 percentage points.

Residents: 205 on 1 January 2026
Migration background: 24.4% 50 people
Born abroad: 70.0% of those with a migration background
Change since 2022: +6.7 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

76% 24%

Dutch origin 75.6% 155
Migration background 24.4% 50

Largest origin groups

Bars show each group’s share of all residents of 2323. For comparison, the line marks Leiden and the circle the Netherlands.

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

4.9% 10 people

Leiden 9.6% Netherlands 5.6%
Other Asia Asia excluding Indonesia and Turkey

4.9% 10 people

Leiden 7.4% Netherlands 5.3%
Suriname

2.4% 5 people

Leiden 1.4% Netherlands 2.0%
Indonesia

2.4% 5 people

Leiden 2.4% Netherlands 1.9%
Germany

2.4% 5 people

Leiden 2.0% Netherlands 1.9%
Other Africa Africa excluding Morocco

2.4% 5 people

Leiden 3.0% Netherlands 2.3%
Other Americas & Oceania Americas and Oceania excluding Suriname and the Dutch Caribbean

2.4% 5 people

Leiden 3.2% Netherlands 1.7%
Turkey

0.0% 0 people

Leiden 2.0% Netherlands 2.6%
Morocco

0.0% 0 people

Leiden 4.2% Netherlands 2.4%
Dutch Caribbean Aruba, Curaçao, Sint Maarten, Bonaire, Sint Eustatius and Saba

0.0% 0 people

Leiden 1.1% Netherlands 1.1%
Poland

0.0% 0 people

Leiden 1.2% Netherlands 1.4%
Belgium

0.0% 0 people

Leiden 0.73% Netherlands 0.76%

First and second generation

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

70% 20%

Born abroad (first generation) 70.0% 35
Born in the Netherlands (second generation) 20.0% 10

Men and women

Men: 115
Women: 90

Compared with all postcodes

Not ranked: fewer than 500 residents.

Trend since 1998

Share of residents with a migration background, compared with larger areas.

Show

Measure % Residents

New CBS classification

24.4%

2323
Leiden
Netherlands

Show as table

Year	2323	Leiden	Netherlands
1998	3.2%	21.2%	16.7%
1999	3.2%	21.7%	17.1%
2000	3.3%	22.5%	17.5%
2001	3.4%	23.1%	18.0%
2002	3.3%	24.0%	18.4%
2003	3.2%	24.8%	18.8%
2004	3.1%	25.4%	19.0%
2005	3.1%	25.7%	19.2%
2006	3.1%	25.9%	19.3%
2007	0.0%	26.1%	19.4%
2008	0.0%	26.6%	19.6%
2009	3.2%	27.2%	19.9%
2010	3.3%	27.4%	20.3%
2011	3.4%	27.9%	20.6%
2012	3.4%	28.3%	20.9%
2013	3.4%	28.5%	21.1%
2014	3.3%	29.0%	21.4%
2015	3.3%	29.3%	21.7%
2016	6.9%	29.8%	22.1%
2017	9.7%	30.2%	22.6%
2018	7.1%	30.6%	23.1%
2019	13.8%	31.3%	23.6%
2020	13.3%	32.2%	24.2%
2021	19.4%	32.2%	24.6%
2022	17.6%	34.0%	26.0%
2023	17.6%	35.6%	27.1%
2024	17.6%	36.5%	27.9%
2025	22.2%	37.5%	28.5%
2026	24.4%	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
2251 Vlietwijk, Krimwijk	27.1%	11,045	+1.7 pp	Other Europe
2324 Bos- en Gasthuisdistrict	39.9%	9,845	+2.0 pp	Other Asia
2266 Leidschendam - Zuid en omgeving, Stompwijk	28.8%	7,005	+6.9 pp	Other Europe
2381 Westwout	14.8%	5,830	+1.7 pp	Other Europe
2322 Bos- en Gasthuisdistrict	22.2%	225	−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	Morocco	Suriname	Indonesia	Germany	Belgium	Other Europe	Other Africa	Other Asia	Other Americas & Oceania	Western migration background	Non-Western migration background
1998	155	150	5	0	5	0	0	0	0	0	0	0	5	0	0	0
1999	155	155	5	0	5	0	0	0	0	0	0	0	0	5	0	0
2000	150	145	5	0	5	0	0	0	0	0	0	0	0	5	5	0
2001	145	140	5	0	10	0	0	0	0	0	0	5	5	0	0	0
2002	150	145	5	0	5	0	0	0	0	0	0	0	0	5	5	0
2003	155	150	5	5	5	0	0	0	0	0	5	0	0	5	5	5
2004	160	155	5	0	0	0	0	5	0	0	0	0	0	0	5	0
2005	160	155	5	0	5	0	0	5	0	0	0	0	0	0	0	0
2006	160	155	5	0	0	0	0	5	0	0	0	0	0	0	5	0
2007	150	150	0	0	5	0	0	5	0	0	0	0	0	0	5	0
2008	160	160	0	0	5	0	0	5	0	0	0	0	0	0	0	0
2009	155	150	5	5	0	0	0	0	0	0	5	0	0	0	5	0
2010	150	145	5	5	5	0	0	0	0	0	5	0	5	0	5	0
2011	145	140	5	5	5	0	0	0	0	0	5	0	5	0	5	0
2012	145	140	5	5	0	0	0	0	0	5	0	0	0	0	5	0
2013	145	140	5	10	0	0	0	0	0	0	10	0	0	0	5	0
2014	150	145	5	5	5	0	0	0	0	0	5	0	0	5	5	0
2015	150	145	5	5	5	0	0	0	5	0	0	0	0	5	5	0
2016	145	135	10	5	5	0	0	0	0	5	0	0	0	5	5	0
2017	155	140	15	10	5	0	0	0	5	0	5	0	0	5	10	5
2018	140	130	10	5	5	5	0	0	0	0	5	0	0	0	5	5
2019	145	125	20	10	10	0	0	5	0	5	5	0	0	5	15	5
2020	150	130	20	10	15	0	0	5	0	5	5	5	5	0	15	10
2021	155	125	30	10	20	0	0	5	0	0	10	5	5	5	15	10
2022	170	140	30	10	20	0	5	5	0	0	5	5	5	5	20	10
2023	170	140	30	15	20	5	0	5	0	5	5	5	5	5	15	10
2024	170	135	30	10	20	0	0	5	0	0	5	5	5	5	–	–
2025	180	140	40	10	30	0	5	5	5	0	5	5	10	5	–	–
2026	205	155	50	15	30	0	5	5	5	0	10	5	10	5	–	–

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