neighbourhood in Heemskerk
Oosterzij
1,975 residents · postal code 1962 · Part of Poelenburg en Oosterzij, Heemskerk
Everything for children close by, thinner wallets
The primary school in Oosterzij is two hundred metres away and more than a third of households have children; that produces a 9.8 for families, among the four hundred highest in the country. At the same time the neighbourhood is among the lowest-scoring on wealth & income, at 3.3.
That wealth figure is founded across the board: property values are far below the national median, half of households fall in the lowest income group, the share of high incomes is less than half the usual level and social assistance is many times above the national middle. Four components, one direction.
With safety the picture is narrower than the score suggests. Violence occurs twice as often here as nationally and vandalism is above the median too, but property crime is below it. The 4.1 therefore comes not from theft but from what happens on the street.
- no. 7,185 of 13,075 neighbourhoods with a grade
- no. 22 of 29 in Heemskerk
How Oosterzij scores
Do some of these matter more to you than others?
Is Oosterzij a safe neighbourhood?
For 2025, Oosterzij comes out at 27 recorded crimes per 1,000 people present; the national middle is 24. That is more than in most Dutch neighbourhoods.
The figures ⌄Safety
Registered crimes per 1,000 people present per year: residents plus business activity. Figures for small neighbourhoods are smoothed.
In 2025, 66 crimes were recorded here. The figures above are per 1,000 people present (residents + businesses).
Tick = Dutch median
The safest neighbourhoods in Heemskerk →The most dangerous neighbourhoods in Heemskerk →
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
Oosterzij has strikingly few residents aged 65 and over: 14%, against 22% in the average Dutch neighbourhood.
Age profile
- 0–1518%
NL median 14%
- 15–2514%
NL median 11%
- 25–4529%
NL median 22%
- 45–6526%
NL median 28%
- 65+14%
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
44% — far more than average
NL median 31%
Households with children
37% — around the average
NL median 35%
Residents per km²
9,951 — far more 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
Is Oosterzij a safe neighbourhood?
For 2025, Oosterzij comes out at 27 recorded crimes per 1,000 people present; the national middle is 24. That is more than in most Dutch neighbourhoods. One caveat: the figure counts per person present, not per resident. In a neighbourhood with many visitors — a centre, a station, a shopping area — it therefore comes out higher than residents experience. The figure is about what the police record, not about the people who live there.
How much crime is there in Oosterzij?
In Oosterzij the police recorded 66 crimes in 2025: theft, burglary, violence and vandalism combined. The comparison figure above (27 per 1,000) is not simply that count divided by the number of residents: we count residents plus workplaces, so a shopping street or station is not unfairly penalised, and for small counts we pull the figure towards the national average — otherwise a single incident would make a small neighbourhood look unsafe.
How is the grade for Oosterzij calculated?
Oosterzij scores 5.9 as its total score. That grade is a national position: we weigh five equally heavy scores — safety, amenities, wealth & income, quiet & nature and families — and see where Oosterzij lands among every neighbourhood in the Netherlands. So it is not the mean of the five grades, but a place in the queue. All from open data published by CBS and the police.
The best and worst neighbourhoods of Heemskerk
Same total grade, same yardstick — from the top to the bottom of Heemskerk.
Highest grades
Lowest grades
More about this area
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