3705 Postcode — Zeist, Utrecht

English Nederlands

4-digit postcode 3705 covers Zeist, 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: 10,260
Households: 4,990
Average property value: €500,000
Owner-occupied: 50%
Average household size: 2
Urbanity: Strongly urban

Where 3705 is

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

People

Residents	10,260
Men	4,980
Women	5,280
Under 15	1,885
15 to 25	1,620
25 to 45	2,555
45 to 65	2,550
65 and over	1,650
Born abroad, in Europe	10%
Born abroad, outside Europe	10%

Households

Households	4,990
Average size	2
One-person households	47.2%2,355
Couples without children	1,035
One-parent families	7.4%370
Two-parent families	1,225

Housing

Homes	4,130
Average property value (WOZ)	€500,000
Owner-occupied	50%
Rented	50%
Housing-association homes	1,835
Flats and shared buildings	33.7%1,390
Built before 1945	36.2%1,495
Unoccupied	2.7%110

Area

Addresses per square kilometre	2,086
Urbanity	Strongly urban
Residents on unemployment, disability or income support	7.2%740

Against the national median

The tick is the national median.

Housing

Owner-occupied	50%
Rented	50%
Flats and shared buildings	33.7%
Built before 1945	36.2%
Unoccupied	2.7%

Households

One-person households	47.2%
One-parent families	7.4%
Residents on unemployment, disability or income support	7.2%

Age bands

Under 15	18.3723%
15 to 25	15.7895%
25 to 45	24.9025%
45 to 65	24.8538%
65 and over	16.0819%

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.