Postcode · Schiedam, South Holland
Postcode 3121: Neighbourhood Kethel
On 1 January 2026, postcode 3121 in Schiedam (Kethel) had 3,530 residents. 24.9% of them (880 people) have a migration background: they were born abroad or have at least one parent who was. That is lower than Schiedam (49.4%) and lower than the national average (29.1%). The largest origin groups are Turkey (4.7%), other Europe (4.7%) and other Asia (2.7%). 47.7% of residents with a migration background were born abroad themselves. Since 2022 the share has risen by 4.0 percentage points.
- Residents
- 3,530 on 1 January 2026
- Migration background
- 24.9% 880 people
- Born abroad
- 47.7% of those with a migration background
- Change since 2022
- +4.0 pp in share with a migration background
Map
Share of residents with a migration background in this postcode and its neighbours.
Where residents come from
Origin of residents on 1 January 2026, as a share of all residents.
Dutch origin and migration background
- Dutch origin 74.9% 2,645
- Migration background 24.9% 880
Largest origin groups
First and second generation
Residents with a migration background, by whether they were born abroad themselves.
- Born abroad (first generation) 47.7% 420
- Born in the Netherlands (second generation) 52.8% 465
Men and women
- Men
- 1,685
- Women
- 1,845
Compared with all postcodes
Trend since 1998
Share of residents with a migration background, compared with larger areas.
- 3121
- Schiedam
- Netherlands
Show as table
| Year | 3121 | Schiedam | Netherlands |
|---|---|---|---|
| 1998 | 9.4% | 23.9% | 16.7% |
| 1999 | 9.6% | 25.1% | 17.1% |
| 2000 | 9.4% | 26.4% | 17.5% |
| 2001 | 9.7% | 27.9% | 18.0% |
| 2002 | 9.8% | 29.1% | 18.4% |
| 2003 | 10.0% | 29.8% | 18.8% |
| 2004 | 10.5% | 30.4% | 19.0% |
| 2005 | 10.8% | 30.9% | 19.2% |
| 2006 | 11.1% | 31.5% | 19.3% |
| 2007 | 11.7% | 31.9% | 19.4% |
| 2008 | 12.1% | 32.6% | 19.6% |
| 2009 | 12.8% | 33.5% | 19.9% |
| 2010 | 13.9% | 34.4% | 20.3% |
| 2011 | 14.4% | 35.1% | 20.6% |
| 2012 | 14.4% | 36.2% | 20.9% |
| 2013 | 15.2% | 36.9% | 21.1% |
| 2014 | 15.5% | 37.7% | 21.4% |
| 2015 | 15.9% | 38.6% | 21.7% |
| 2016 | 17.5% | 39.6% | 22.1% |
| 2017 | 18.2% | 40.7% | 22.6% |
| 2018 | 18.9% | 41.6% | 23.1% |
| 2019 | 19.4% | 42.4% | 23.6% |
| 2020 | 19.7% | 43.7% | 24.2% |
| 2021 | 20.2% | 44.6% | 24.6% |
| 2022 | 21.0% | 45.8% | 26.0% |
| 2023 | 22.1% | 47.1% | 27.1% |
| 2024 | 23.0% | 48.4% | 27.9% |
| 2025 | 24.3% | 49.0% | 28.5% |
| 2026 | 24.9% | 49.4% | 29.1% |
In 2022 CBS switched to a new origin classification. Up to 2021 the line shows the old “migration background” figures; the overlap years show a small break (about +0.8 points nationally).
Nearby postcodes
All figures
Number of residents per origin group on 1 January. Figures up to 2021 use the old CBS classification.
| Year | Total residents | Dutch origin | Migration background | Europe | Outside Europe | Turkey | Morocco | Suriname | Indonesia | Dutch Caribbean | Germany | Poland | Belgium | Other Europe | Other Africa | Other Asia | Other Americas & Oceania | Western migration background | Non-Western migration background |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1998 | 3,300 | 2,990 | 310 | 150 | 170 | 20 | 5 | 20 | 65 | 20 | 50 | 5 | 15 | 80 | 10 | 15 | 15 | 220 | 90 |
| 1999 | 3,290 | 2,970 | 315 | 140 | 170 | 30 | 5 | 15 | 65 | 15 | 50 | 0 | 15 | 75 | 5 | 10 | 25 | 220 | 100 |
| 2000 | 3,290 | 2,985 | 310 | 150 | 155 | 25 | 5 | 20 | 60 | 20 | 50 | 0 | 15 | 85 | 5 | 10 | 10 | 215 | 95 |
| 2001 | 3,195 | 2,890 | 310 | 145 | 160 | 30 | 5 | 20 | 55 | 15 | 55 | 0 | 20 | 70 | 10 | 10 | 15 | 210 | 100 |
| 2002 | 3,160 | 2,845 | 310 | 145 | 165 | 30 | 0 | 20 | 55 | 15 | 50 | 0 | 15 | 80 | 15 | 15 | 15 | 205 | 100 |
| 2003 | 3,145 | 2,825 | 315 | 140 | 175 | 45 | 5 | 15 | 50 | 20 | 55 | 0 | 10 | 75 | 10 | 10 | 20 | 205 | 110 |
| 2004 | 3,100 | 2,775 | 325 | 150 | 180 | 40 | 10 | 25 | 55 | 15 | 55 | 0 | 15 | 80 | 5 | 10 | 20 | 210 | 120 |
| 2005 | 3,155 | 2,815 | 340 | 155 | 175 | 35 | 10 | 25 | 55 | 15 | 60 | 0 | 10 | 85 | 0 | 10 | 25 | 225 | 110 |
| 2006 | 3,150 | 2,805 | 350 | 170 | 185 | 40 | 10 | 25 | 55 | 15 | 55 | 5 | 15 | 95 | 0 | 10 | 30 | 235 | 115 |
| 2007 | 3,175 | 2,805 | 370 | 165 | 195 | 40 | 10 | 30 | 55 | 15 | 55 | 0 | 10 | 100 | 0 | 15 | 30 | 235 | 140 |
| 2008 | 3,255 | 2,860 | 395 | 180 | 215 | 40 | 5 | 30 | 55 | 30 | 55 | 10 | 10 | 105 | 5 | 15 | 35 | 240 | 150 |
| 2009 | 3,230 | 2,815 | 415 | 185 | 225 | 50 | 5 | 35 | 50 | 35 | 50 | 5 | 10 | 120 | 10 | 15 | 25 | 245 | 165 |
| 2010 | 3,240 | 2,790 | 450 | 185 | 260 | 65 | 15 | 30 | 55 | 30 | 50 | 10 | 15 | 110 | 10 | 25 | 30 | 255 | 200 |
| 2011 | 3,240 | 2,770 | 465 | 200 | 265 | 65 | 10 | 30 | 60 | 25 | 45 | 10 | 15 | 130 | 20 | 25 | 30 | 270 | 195 |
| 2012 | 3,205 | 2,740 | 460 | 200 | 265 | 70 | 15 | 30 | 60 | 25 | 50 | 10 | 10 | 130 | 15 | 20 | 30 | 275 | 190 |
| 2013 | 3,165 | 2,685 | 480 | 205 | 280 | 70 | 20 | 30 | 55 | 25 | 50 | 15 | 15 | 125 | 25 | 20 | 35 | 275 | 210 |
| 2014 | 3,130 | 2,645 | 485 | 190 | 295 | 75 | 20 | 35 | 60 | 25 | 45 | 15 | 15 | 115 | 30 | 25 | 25 | 270 | 215 |
| 2015 | 3,140 | 2,640 | 500 | 185 | 320 | 85 | 25 | 35 | 60 | 20 | 45 | 10 | 10 | 120 | 30 | 20 | 45 | 265 | 235 |
| 2016 | 3,220 | 2,655 | 565 | 200 | 370 | 105 | 25 | 45 | 65 | 25 | 45 | 20 | 10 | 125 | 45 | 25 | 35 | 285 | 285 |
| 2017 | 3,195 | 2,615 | 580 | 195 | 385 | 110 | 25 | 45 | 65 | 20 | 40 | 15 | 10 | 130 | 55 | 25 | 40 | 275 | 300 |
| 2018 | 3,195 | 2,590 | 605 | 195 | 415 | 120 | 20 | 45 | 65 | 25 | 35 | 20 | 10 | 130 | 65 | 35 | 40 | 280 | 330 |
| 2019 | 3,240 | 2,610 | 630 | 200 | 430 | 115 | 30 | 45 | 70 | 25 | 35 | 25 | 15 | 125 | 65 | 35 | 45 | 285 | 345 |
| 2020 | 3,525 | 2,830 | 695 | 215 | 485 | 130 | 35 | 50 | 75 | 30 | 40 | 25 | 5 | 145 | 70 | 40 | 55 | 305 | 390 |
| 2021 | 3,515 | 2,805 | 710 | 225 | 485 | 125 | 40 | 50 | 70 | 35 | 35 | 25 | 15 | 150 | 75 | 40 | 50 | 315 | 390 |
| 2022 | 3,480 | 2,750 | 730 | 215 | 510 | 130 | 40 | 55 | 70 | 35 | 35 | 20 | 15 | 145 | 85 | 55 | 45 | 300 | 410 |
| 2023 | 3,510 | 2,735 | 775 | 230 | 545 | 135 | 45 | 55 | 75 | 35 | 40 | 30 | 10 | 155 | 90 | 65 | 45 | 310 | 440 |
| 2024 | 3,520 | 2,710 | 810 | 235 | 575 | 140 | 40 | 55 | 75 | 35 | 40 | 35 | 10 | 150 | 100 | 80 | 50 | – | – |
| 2025 | 3,475 | 2,630 | 845 | 240 | 605 | 155 | 45 | 60 | 70 | 45 | 40 | 30 | 10 | 155 | 90 | 90 | 50 | – | – |
| 2026 | 3,530 | 2,645 | 880 | 255 | 630 | 165 | 50 | 70 | 70 | 45 | 35 | 40 | 10 | 165 | 80 | 95 | 55 | – | – |
Definitions and method · CBS 85640NED (2022–2026), 83503NED (1998–2023)