6135 Postcode — Sittard, Limburg

English Nederlands

4-digit postcode 6135 covers Sittard, Limburg. 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: 6,075
Households: 2,900
Average property value: €245,000
Owner-occupied: 50%
Average household size: 2
Urbanity: Strongly urban

Where 6135 is

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

People

Residents	6,075
Men	3,080
Women	3,000
Under 15	780
15 to 25	825
25 to 45	1,535
45 to 65	1,645
65 and over	1,285
Born abroad, in Europe	10%
Born abroad, outside Europe	10%

Households

Households	2,900
Average size	2
One-person households	43.4%1,260
Couples without children	775
One-parent families	9.3%270
Two-parent families	595

Housing

Homes	3,030
Average property value (WOZ)	€245,000
Owner-occupied	50%
Rented	50%
Housing-association homes	870
Flats and shared buildings	45.5%1,380
Built before 1945	2.1%65
Unoccupied	4.1%125

Area

Addresses per square kilometre	1,520
Urbanity	Strongly urban
Residents on unemployment, disability or income support	11%670

Against the national median

The tick is the national median.

Housing

Owner-occupied	50%
Rented	50%
Flats and shared buildings	45.5%
Built before 1945	2.1%
Unoccupied	4.1%

Households

One-person households	43.4%
One-parent families	9.3%
Residents on unemployment, disability or income support	11%

Age bands

Under 15	12.8501%
15 to 25	13.5914%
25 to 45	25.2883%
45 to 65	27.1005%
65 and over	21.1697%

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.