neighbourhood in Wormerland
Oost-Knollendam
655 residents · postal code 1534 · Part of Wormer, Wormerland
Home to 655 residents, Oost-Knollendam is a rural area in Wormerland. Measured against every neighbourhood in the Netherlands, it scores 5.1 out of 10. The profile is pronounced: safety scores 9.2, while amenities lags at 3.7. For families it stands at 2.7.
- no. 8,510 of 13,075 neighbourhoods with a grade
- no. 10 of 13 in Wormerland
How Oost-Knollendam scores
Do some of these matter more to you than others?
The figures ⌄Safety
Registered crimes per 1,000 people present per year: residents plus business activity. Figures for small neighbourhoods are smoothed.
In 2025, 9 crimes were recorded here. The figures above are per 1,000 people present (residents + businesses).
Tick = Dutch median
The safest neighbourhoods in Wormerland →The most dangerous neighbourhoods in Wormerland →
The figures ⌄Amenities
Average distance to everyday amenities, compared with the Dutch median.
Tick = Dutch median
The figures ⌄Wealth & income
What the homes are worth, what residents earn and how many homes stand empty. It describes the area, not the people living in it.
Not counted
Part of this score's subject, but not part of the grade.
Tick = Dutch median
The figures ⌄Quiet & nature
How tightly the addresses sit together, how much noise there is, and how much green, trees and water surround it.
Not counted
Part of this score's subject, but not part of the grade.
Not part of the grade: air quality varies mostly between regions, barely between neighbourhoods within one municipality. WHO guideline: 5 µg/m³. Calculated annual mean, RIVM 2024.
Tick = Dutch median
The figures ⌄Families
How practical this area is with children: distance to school and childcare, and how many children already live here.
Tick = Dutch median
Who lives here
Oost-Knollendam has strikingly few children under 15: 10%, against 14% in the average Dutch neighbourhood.
Age profile
- 0–1510%
NL median 14%
- 15–2510%
NL median 11%
- 25–4523%
NL median 22%
- 45–6532%
NL median 28%
- 65+25%
NL median 22%
Share of residents per age group (CBS, 2025). All five bars share one scale, so their lengths can be compared with each other.
Average household size
2.1 — smaller than average
NL median 2.3
Single-person households
36% — more than average
NL median 31%
Households with children
29% — fewer than average
NL median 35%
Residents per km²
179 — far less densely populated than average
NL median 2,364
Tick = Dutch median. Households with children counts towards Families, population density towards Quiet & nature; the other figures here get no grade.
Frequently asked questions
How is the grade for Oost-Knollendam calculated?
Oost-Knollendam scores 5.1 as its total score. That grade is a national position: we weigh four equally heavy scores — safety, amenities, wealth & income and quiet & nature — and see where Oost-Knollendam lands among every neighbourhood in the Netherlands. So it is not the mean of the four grades, but a place in the queue. All from open data published by CBS and the police.
Is Oost-Knollendam a safe neighbourhood?
Oost-Knollendam scores 9.2 on safety, based on registered crimes per 1,000 people present (16.7 per year). The national median is around 24.1.
The best and worst neighbourhoods of Wormerland
Same total grade, same yardstick — from the top to the bottom of Wormerland.
Highest grades
More about this area
Nearby neighbourhoods
Westknollendam
Zaanstad
Karnemelksepolder
Zaanstad
Industriebuurt
Zaanstad
Markenbinnen
Alkmaar
Plaszoom
Wormerland
Wormerveer Noord
Zaanstad