# Population change by month

Per municipality and month: how many people were born, died, moved in or left.

- Publisher: Centraal Bureau voor de Statistiek
- Area: Netherlands · Finest detail: municipality
- Period: 2002 – 2026 · Refreshed: monthly
- Access: Open · Licence: CC BY 4.0
- Join keys: gemeentecode (GM), provinciecode (PV)
- Status: ok (2026-09-30)
- URL: https://opendata.cbs.nl/#/CBS/nl/dataset/37230ned

## What can you do with it?
- **Is your municipality growing or shrinking?.** Split growth into births, deaths, moves and migration to see where growth comes from.
- **Deaths by season.** Monthly deaths show flu waves and heat waves. Compare with KNMI temperatures.

## Interesting combinations
- Do more people die during heat waves? → [knmi-daggegevens](https://www.opendataindex.nl/en/bron/knmi-daggegevens.md) via datum (maand). Compare monthly deaths with the number of tropical days in De Bilt.

## Similar sources
- [cbs-kwb](https://www.opendataindex.nl/en/bron/cbs-kwb.md): Yearly figures, but down to neighbourhood level.