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De Kooi

De Kooi is a neighbourhood in the Leiden-Noord district of Leiden, with 6,185 residents and 3,117 homes. 23% of homes are owner-occupied and 36% are single-family houses. The average WOZ value (€336,000) is 18% below the municipal average. From a typical postcode here, 242 everyday services are within a 15-minute walk.

Neighbourhood 05460302 · 176 postcodes · Updated 24 October 2026
6,185residents1 January 2025
€336,000average WOZ home valueLeiden: €409,000
18%green within 500 mLeiden: 21%
242services within 15 minutesmedian postcode
De Kooi in LeidenPostcodes in De Kooi highlighted; the rest of Leiden in grey
Map of Leiden with De Kooi highlighted

Who lives here.

6,185 residents in 3,310 households, 1.9 people per household on average; next to the figure for Leiden.

14%
aged 0–14
13%
aged 15–24
37%
aged 25–44
15%
aged 65 and over
50%
one-person households
25%
households with children

Source: Statistics Netherlands (CBS), Key figures for districts and neighbourhoods 2025 (CC BY 4.0)

Homes.

The average WOZ value of a home in De Kooi is €336,000, against €409,000 in Leiden.

3,117homes82 newly built in 2025
36%single-family houses64% flats and apartments
23%owner-occupied62% housing association
8%built in the last ten years4% unoccupied
640 m³gas per home per yearLeiden: 580 m³
1,950 kWhelectricity per home per yearLeiden: 2,050 kWh
10%homes off the gas gridLeiden: 23%
9%homes with solar panelsLeiden: 18%

The WOZ value is the official valuation each Dutch municipality sets every year for property tax. It is not a sale price. The averages here use the valuation date of 1 January 2024.

Source: Statistics Netherlands (CBS), Key figures for districts and neighbourhoods 2025 (CC BY 4.0)

Income and work.

How households in De Kooi compare with the national income distribution (reporting year 2024).

58%of households in the lowest 40% nationallyLeiden: 53%
9%in the top 20% nationallyLeiden: 16%
5.3%of residents live below the poverty lineLeiden: 4.2%
€7,000median household wealthLeiden: €25,000
69.0%of 15 to 75-year-olds in workLeiden: 70.0%
31%with a university or higher professional degreeLeiden: 50%
15.0%of workers are self-employedLeiden: 14.0%
0.6cars per householdLeiden: 0.5

Statistics Netherlands ranks every household in the country by income. In a neighbourhood that matched the national mix exactly, 40% of households would fall in the lowest 40% nationally and 20% in the top 20%. Income on its own says nothing about what a place is like to live in.

Source: Statistics Netherlands (CBS), Key figures for districts and neighbourhoods 2024: income, work and education (CC BY 4.0)

Safety.

Police registered 278 crimes in De Kooi in 2025, 11% fewer than in 2024. That is 44.9 per 1,000 residents, compared with 56.4 across Leiden.

Theft of bicycles and mopeds41
Vandalism and criminal damage36
Assault17
Other property crime14
Driving under the influence11
Threats10
Theft from vehicles9
Burglary of homes6
Vehicle theft4
Public violence against people2

Registered crime shows what becomes known to the police, not how safe a place feels, and not every crime is reported. Town centres, shopping areas and the streets around stations have few residents but many visitors, which pushes the rate per 1,000 residents up. The categories above are a selection; the total includes every registered crime.

Source: Dutch Police, registered crime by district and neighbourhood, 2024–2025 (CC BY 4.0)

Everyday distances.

Average distance by road for everyone living in De Kooi, a very highly urban area.

Distance to

GP practice0.8 km
Large supermarket0.7 km
Day nursery0.4 km
Primary school0.6 km

Also

Primary schools within 3 km18.0
Primary pupils living here460
Secondary pupils living here250
Business premises720
Residents per km²9,453
Land area65 ha

Source: Statistics Netherlands (CBS), Key figures for districts and neighbourhoods 2025 (CC BY 4.0)

Schools in De Kooi.

Primary and secondary school sites with an address in this neighbourhood.

De ViersprongPrimary school · Openbaar
De SpringplankPrimary school · Protestants-Christelijk
Roomskatholieke Basisschool De SingelPrimary school · Rooms-Katholiek
Vrije School Zuid-Holland voor Atheneum Havo MavoSecondary school (havo, vwo, vmbo) · Bijzonder

Source: DUO Open Education Data: primary and secondary school locations (CC BY 4.0). Admission depends on each school's own policy.

Nearby neighbourhoods.

The closest neighbourhoods in Leiden.

Havenwijk-NoordNoorderkwartierDe WaardHavenwijk-ZuidWaardeilandNoordvestLeiden-Noord district