3604 Postcode — Maarssen, Utrecht

English Nederlands

4-digit postcode 3604 covers Maarssen, Utrecht. Dutch postcodes are four digits and two letters. The four digits identify a delivery area, and it is the level Statistics Netherlands publishes against, so the figures below describe this postcode itself rather than the town around it.

Residents: 2,535
Households: 1,075
Average property value: €608,000
Owner-occupied: 80%
Average household size: 2.4
Urbanity: Moderately urban

Where 3604 is

Maarssen, Utrecht — the point recorded for this postal code. It marks the centre of the code, not its boundary.

People

Residents	2,535
Men	1,270
Women	1,265
Under 15	495
15 to 25	230
25 to 45	645
45 to 65	730
65 and over	430
Born abroad, in Europe	0%
Born abroad, outside Europe	0%

Households

Households	1,075
Average size	2.4
One-person households	29.3%315
Couples without children	320
One-parent families	6.5%70
Two-parent families	370

Housing

Homes	1,080
Average property value (WOZ)	€608,000
Owner-occupied	80%
Rented	20%
Housing-association homes	20
Flats and shared buildings	31.9%345
Built before 1945	27.8%300
Unoccupied	4.6%50

Area

Addresses per square kilometre	1,268
Urbanity	Moderately urban
Residents on unemployment, disability or income support	2.6%65

Against the national median

The tick is the national median.

Housing

Owner-occupied	80%
Rented	20%
Flats and shared buildings	31.9%
Built before 1945	27.8%
Unoccupied	4.6%

Households

One-person households	29.3%
One-parent families	6.5%
Residents on unemployment, disability or income support	2.6%

Age bands

Under 15	19.5652%
15 to 25	9.09091%
25 to 45	25.4941%
45 to 65	28.8538%
65 and over	16.996%

Figures from Statistics Netherlands (CBS), key figures per postcode, 1 January 2025. CBS withholds figures for areas with too few residents to publish safely, so a missing value here means withheld, not zero.