3818 Postcode — Amersfoort, Utrecht

English Nederlands

4-digit postcode 3818 covers Amersfoort, 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: 10,795
Households: 4,755
Average property value: €665,000
Owner-occupied: 70%
Average household size: 2.2
Urbanity: Strongly urban

Where 3818 is

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

People

Residents	10,795
Men	5,350
Women	5,440
Under 15	1,700
15 to 25	1,210
25 to 45	2,335
45 to 65	3,235
65 and over	2,315
Born abroad, in Europe	0%
Born abroad, outside Europe	10%

Households

Households	4,755
Average size	2.2
One-person households	38.6%1,835
Couples without children	1,380
One-parent families	5.7%270
Two-parent families	1,265

Housing

Homes	4,675
Average property value (WOZ)	€665,000
Owner-occupied	70%
Rented	30%
Housing-association homes	890
Flats and shared buildings	37.8%1,765
Built before 1945	48.7%2,275
Unoccupied	3.1%145

Area

Addresses per square kilometre	1,735
Urbanity	Strongly urban
Residents on unemployment, disability or income support	7.2%780

Against the national median

The tick is the national median.

Housing

Owner-occupied	70%
Rented	30%
Flats and shared buildings	37.8%
Built before 1945	48.7%
Unoccupied	3.1%

Households

One-person households	38.6%
One-parent families	5.7%
Residents on unemployment, disability or income support	7.2%

Age bands

Under 15	15.748%
15 to 25	11.2089%
25 to 45	21.6304%
45 to 65	29.9676%
65 and over	21.4451%

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.