| Code | Name | Region |
|---|---|---|
| NLZPO | Zandpol | DR |
| NLZDV | Zandvoort | |
| NLZDM | Zeddam | |
| NLZDK | Zederik | ZH |
| NLZLA | Zeeland | NB |
| NLZEE | Zeevang | NH |
| NLZEW | Zeewolde | FL |
| NLZEG | Zegge | NB |
| NLZIT | Zeist | |
| NLZEM | Zelhem | GE |
| NLZND | Zenderen | |
| NLZET | Zetten | |
| NLZEV | Zevenaar | |
| NLZVB | Zevenbergen | NB |
| NLZVG | Zevenbergen | NB |
| NLZBK | Zevenbergschen Hoek | NB |
| NLWOL | Wolfheze | GE |
| NLWLM | Wolsum | FR |
| NLWKG | Wolsumerketting | FR |
| NLWVG | Wolvega | |
| NLWMS | Wommels | FR |
| NLMKM | Wonseradeel/makkum | FR |
| NLWKU | Workum | FR |
| NLWMO | Wormer | |
| NLWOM | Wormerland | NH |
| NLWRV | Wormerveer | |
| NLWBG | Woubrugge | ZH |
| NLWDB | Woudenberg | |
| NLWCM | Woudrichem | |
| NLWSD | Woudsend | FR |
| NLWOU | Wouw | |
| NLWPL | Wouwse Plantage | NB |
| NLYSK | Yerseke | |
| NLYPG | Ypenburg | |
| NLZAH | Zaamslag | ZE |
| NLZAA | Zaandam | |
| NLWHD | Wilhelminadorp | ZE |
| NLWHA | Wilhelminaoord | DR |
| NLWIS | Willemstad | |
| NLWLN | Wilnis | |
| NLWIL | Wilp | GE |
| NLWNK | Winkel | |
| NLWSC | Winschoten | |
| NLWSN | Winssen | GE |
| NLWSU | Winsum | FR |
| NLWNS | Winsum | GR |
| NLWTR | Wintelre | NB |
| NLWTW | Winterswijk | |
| NLWSL | Wissel | GE |
| NLWZE | Wissenkerke | ZE |