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The population is shrinking, while it grows in Maassluis. Homes cost less than the average in the municipality of Maassluis, and registered crime per resident is higher.
6,430 residents,
Get a full report on value, costs, energy and surroundings.
Compared with the municipality of Maassluis · newest year available
© Kadaster / PDOK, CBS
© Kadaster / PDOK, CBS
The average WOZ value in Sluispolder is €293,000, 15% lower than in Maassluis (€345,000). Between 2014 and 2025 the average WOZ value rose 84%, the same as in Maassluis. 49% of the homes are owner-occupied, 6 percentage points less than in Maassluis (55%).
The average WOZ value rose 84% between 2014 and 2025, to €293,000.
The WOZ value as struck on 1 January of the year before the KWB edition.
Source: CBS Kerncijfers wijken en buurten (KWB) 2025
Modelled ownership costs for a typical dwelling here: ~€273 per month (excluding mortgage and energy)
Typical home here, before mortgage and energy
Model estimates, not bills.
For this home, Maassluis's OZB, sewage and waste levies rank 267th of 334 gemeenten, cheapest first.
Water board, maintenance and insurance are estimated from national rates and the home's value and size, so they aren't compared.
Source: Municipal levies + CBS 2026
Sluispolder has the lowest WOZ value of the 8 wijken in the municipality of Maassluis.
Average WOZ value from the Netherlands down to this area, and its rank within its own group (e.g. buurten within the same wijk). Provincie is omitted: KWB publishes no province rows to average.
Source: CBS Kerncijfers wijken en buurten (KWB)
Here: €293,000 average WOZ value.
| Value | Dwellings | Aged 65+ | |
|---|---|---|---|
| Sluispolder | 293,000 | 3,093 | – |
| Taanschuurpolder | 366,000 | 1,478 | – |
| Dijkpolder | 299,000 | 2,626 | – |
| Kapelpolder | 338,000 | 3,645 | – |
| Burgemeesterswijk | 349,000 | 3,024 | – |
| Steendijkpolder | 376,000 | 2,014 | – |
| Aalkeetpolder | 826,000 | 54 | – |
| Wilgenrijk | 587,000 | 730 | – |
Each circle is an area: position by average WOZ value, size by dwelling count. The 65-and-over share (pct_65_plus) travels on every point but is not yet drawn as a second axis.
Source: CBS Kerncijfers wijken en buurten (KWB)
The largest category is owner-occupied, at 49% of dwellings.
CBS publishes this as a share of the dwelling stock, not a count.
Source: CBS Kerncijfers wijken en buurten (KWB) 2025
57% of the dwelling stock is multi-family homes.
CBS publishes this as a share of the dwelling stock, not a count.
Source: CBS Kerncijfers wijken en buurten (KWB) 2025
50% of dwellings were built between 1945 and 1964, against 12% in the municipality of Maassluis.
Based on 3,122 dwellings with a registered construction year in the BAG (verblijfsobjecten whose pand has no usable bouwjaar, such as 1005 or 9999, are excluded).
Source: Kadaster BAG (bag-light.gpkg) 2026-09-01
In 2025, 36 crimes per 1,000 residents were registered in Sluispolder, 6% higher than in Maassluis (34). Since 2021 the registered rate per 1,000 residents fell 8%, against a fall of 5% in Maassluis. Crimes are counted where they happen, not where the offender lives.
In 2025, Sluispolder registered 36 crimes per 1,000 residents, against 34 in the municipality of Maassluis.
Crime is counted where it happens and divided by the number of residents, so places with many visitors — city centres, nightlife, stations — score higher.
Source: CBS/Politie geregistreerde misdrijven (47018NED) 2025
In 2025, Sluispolder registered 36 crimes per 1,000 residents, against 34 in the municipality of Maassluis.
Registered crime, not all crime — CBS/Politie 47018NED. A year without a matching population figure (KWB) is left out.
Source: CBS/Politie geregistreerde misdrijven (47018NED) 2025
The largest category in Sluispolder is 'Theft and burglary': 11.0 per 1,000 residents in 2025, against 13.0 in the municipality of Maassluis.
Four categories are structurally withheld at buurt level (sex offences, child pornography, child prostitution, other integrity offences); the gap with the published total is shown under 'other'.
Source: CBS/Politie geregistreerde misdrijven (47018NED) 2025
Home burglary 2023-2025: 1.7 per 1,000 dwellings a year on average, against 2.1 in the municipality of Maassluis.
Averaged over 3 years (2023-2025) to dampen year-to-year noise at low counts.
Source: CBS/Politie geregistreerde misdrijven (47018NED) 2025
In 2024, police in Sluispolder registered 15 traffic accidents, of which 7 with injury and 1 fatal.
Registered accidents (BRON, Rijkswaterstaat); material-damage-only accidents have not been systematically registered since roughly 2010 and are not comparable between areas. This area shows only accidents with an exactly known location (roughly 80-85% of all registered accidents); the rest is known only at street, intersection or gemeente level. The comparison with the gemeente therefore also uses only the gemeente's exactly-located accidents, which is why that figure is lower than on the gemeente's own page.
Source: BRON — Bestand geRegistreerde Ongevallen Nederland (Rijkswaterstaat) 2024
An estimated 69% of adults in Sluispolder rate their own health as good, 2 percentage points less than in Maassluis. More adults feel lonely (55% against 49%), more smoke (22% against 18%), more report anxiety or depression (53% against 49%) and more are overweight (59% against 58%). Built-up land is the largest land use in Sluispolder, covering 66% of the area, against 41% in Maassluis. Green space such as parks, sports fields, forest and nature covers 24% of the area, 8 percentage points above the 16% in Maassluis.
An estimated 69% of adults rate their own health as good, against 71% in the municipality of Maassluis (2024).
An RIVM model estimate (small-area estimation from the 2024 Health Monitor for Adults and Elderly), not a direct tabulation — even a buurt that was not itself surveyed gets an estimate. Figures cover adults aged 18 and over.
Source: RIVM/CBS Gezondheidsmonitor Volwassenen en Ouderen (kleine-gebieden-schatting) 2024
24% of the area is green (parks, sport, nature), against 16% in the municipality of Maassluis.
Every share is calculated as a percentage of the TOTAL area (land and water together, peiljaar 2022); water is therefore one of the slices itself, not a separate whole. Green is the sum of recreational terrain (parks, sport fields, allotments, day recreation) and natural terrain (forest, open natural terrain) — agricultural land is not counted as green here.
Source: CBS Bodemgebruik (86211NED) 2022
Sluispolder has 6,430 inhabitants (2026), or 7,183 per km² (64% higher than in Maassluis). Between 2014 and 2026 the population stayed about level, against a rise of 16% in Maassluis. In the 2025 House of Representatives (Tweede Kamer) election, turnout in the municipality of Maassluis was 75%, 3 percentage points below the national 78%. Of the parties that are largest nationally, PVV (Partij voor de Vrijheid) had the highest share there: 19% of the vote, against 17% nationally. Election results exist only per municipality, so these are the municipality's figures.
The population held steady between 2014 and 2026, at 6,430.
Source: CBS Kerncijfers wijken en buurten (KWB) 2026
With 7,183 residents per km², this wijk is 64% more densely populated than the municipality of Maassluis.
Source: CBS Kerncijfers wijken en buurten (KWB) 2026
In 2025, 12.9 children were born per 1,000 residents; 11.3 died per 1,000.
Source: CBS Kerncijfers wijken en buurten (KWB) 2025
30% of residents are between 25 and 45.
Source: CBS Kerncijfers wijken en buurten (KWB) 2026
52% of residents are never married.
Source: CBS Kerncijfers wijken en buurten (KWB) 2026
61% of residents have Dutch origin.
Source: CBS Kerncijfers wijken en buurten (KWB) 2026
40% of residents have a havo, vwo or mbo2-4 level education.
Source: CBS Kerncijfers wijken en buurten (KWB) 2024
These figures are for the whole municipality of Maassluis; there is no result per buurt or wijk. At the general election (Tweede Kamer) of 29 October 2025, 75% of eligible voters in Maassluis voted. The largest party was PVV (Partij voor de Vrijheid) with 19% of the valid votes.
Official election result (Kiesraad), top 8 parties by national vote count plus 'Other'; share of valid votes. A voter may vote at any polling station in their own gemeente; there is therefore no reliable buurt- or wijk-level result. This figure is the whole gemeente's own result.
Source: Kiesraad — Verkiezingsuitslag Tweede Kamer (data.overheid.nl) TK2025
Sluispolder has an average of 0.9 cars per household, 10% lower than in Maassluis (1.0). 17% of cars run on something other than petrol (diesel, LPG or electricity, hybrids included), 3 percentage points less than in Maassluis (20%).
Zakelijke dienstverlening is the largest sector, with 140 establishments.
Source: CBS Kerncijfers wijken en buurten (KWB) 2025
17% of passenger cars do not run on petrol (diesel, LPG, electric etc.), against 20% in the municipality of Maassluis (2025).
CBS splits passenger cars into 'petrol' and 'other fuel' only. That second category bundles diesel, LPG, electric (including hybrid), hydrogen, alcohol, LNG and CNG together — CBS publishes no separate electric-car count per buurt, wijk or gemeente, so this is not the same as an 'electric share'.
Source: CBS Kerncijfers wijken en buurten (KWB) 2025
The share of passenger cars not running on petrol went from 10% to 17% between 2014 and 2025.
See the 'Passenger cars by fuel type' card for what 'other fuel' covers — this is not the share of electric cars.
Source: CBS Kerncijfers wijken en buurten (KWB) 2025
In 2025, 2,725 passenger cars and 190 motorcycles were registered here.
At this level CBS publishes only passenger cars and motorcycles, no vans or trucks.
Source: CBS Kerncijfers wijken en buurten (KWB) 2025
86% of addresses are residential; the largest other use is retail (2%).
Based on 3,628 verblijfsobjecten in use. An object with several registered uses (e.g. a flat above a shop) is counted under each of them, so the shares can add up to more than 100%.
Source: Kadaster BAG (bag-light.gpkg) 2026-09-01
7,183 residents per km²: 13 times as densely populated as the Dutch average.
The 5 characteristics that differ most from the national average, ranked by log ratio (so a halving and a doubling count as equally different); the shown percentage is the ordinary difference against the Netherlands.
Source: CBS Kerncijfers wijken en buurten (KWB) 2026
| Sluispolder West | 1,875 | €301,000 | 49 |
| Binnenstad | 1,165 | €290,000 | 34 |
| Sluispolder Oost | 3,390 | €289,000 | 31 |