8121 Postcode — Olst, Overijssel

English Nederlands

4-digit postcode 8121 covers Olst, Overijssel. 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: 8,550
Households: 3,715
Average property value: €387,000
Owner-occupied: 70%
Average household size: 2.2
Urbanity: Little urban

Where 8121 is

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

People

Residents	8,550
Men	4,275
Women	4,275
Under 15	1,175
15 to 25	950
25 to 45	1,800
45 to 65	2,495
65 and over	2,130
Born abroad, in Europe	0%
Born abroad, outside Europe	0%

Households

Households	3,715
Average size	2.2
One-person households	31.4%1,165
Couples without children	1,335
One-parent families	5.9%220
Two-parent families	995

Housing

Homes	3,830
Average property value (WOZ)	€387,000
Owner-occupied	70%
Rented	30%
Housing-association homes	980
Flats and shared buildings	14.8%565
Built before 1945	19.7%755
Unoccupied	3.7%140

Area

Addresses per square kilometre	530
Urbanity	Little urban
Residents on unemployment, disability or income support	8.3%710

Against the national median

The tick is the national median.

Housing

Owner-occupied	70%
Rented	30%
Flats and shared buildings	14.8%
Built before 1945	19.7%
Unoccupied	3.7%

Households

One-person households	31.4%
One-parent families	5.9%
Residents on unemployment, disability or income support	8.3%

Age bands

Under 15	13.7427%
15 to 25	11.1111%
25 to 45	21.0526%
45 to 65	29.1813%
65 and over	24.9123%

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.