Population of Grimbergen
Reference date: 2026-01-01
40,491
residents
The official population of Grimbergen was 40,491 residents on 1 January 2026, ranking 54th among Belgium's municipalities.

- Population density
- 1,047.1residents/km²
- Rank in Belgium
- 54thout of 565 municipalities
- Population change
- +429
- Reference date
- 2026-01-01
Official time series
Source: official Statbel data · Statbel
View the exact data table
| 2026 | 40,491 | 1,047.1 |
| 2025 | 40,062 | 1,036.0 |
| 2024 | 39,860 | 1,030.8 |
| 2023 | 39,368 | 1,018.1 |
| 2022 | 38,539 | 996.6 |
| 2021 | 38,314 | 990.8 |
| 2020 | 37,972 | 982.0 |
| 2019 | 37,542 | 970.8 |
| 2018 | 37,355 | 966.0 |
| 2017 | 37,030 | 959.3 |
| 2016 | 36,742 | 951.8 |
| 2015 | 36,558 | 947.0 |
| 2014 | 36,524 | 946.1 |
| 2013 | 36,188 | 937.4 |
| 2012 | 35,810 | 927.7 |
| 2011 | 35,441 | 918.1 |
| 2010 | 35,169 | 911.0 |
| 2009 | 34,854 | 902.9 |
Population
Who lives here
A complete, non-overlapping view of the registered population by age, from the same reference-date record.View the exact data table
| Under 18 | 8,919 | 22.0% |
|---|---|---|
| 18–24 | 3,352 | 8.3% |
| 25–44 | 10,051 | 24.8% |
| 45–64 | 10,334 | 25.5% |
| 65 and older | 7,835 | 19.4% |
Key figures
Use these population patterns in Horizon Mapper for catchment and location-opportunity analysis. Horizon Mapper