Aantal inwoners naar leeftijd in Holland Rijnland per 1-1-2020.
| regio | 0-14 | 15-44 | 45-64 | 65-74 | 75 en ouder | totaal | |
|---|---|---|---|---|---|---|---|
| 0 | 31.426 | 67.273 | 54.543 | 21.916 | 16.707 | 191.865 | |
| 1 | Hillegom | 3.474 | 7.714 | 6.395 | 2.576 | 2.050 | 22.209 |
| 2 | Katwijk | 12.074 | 24.400 | 17.402 | 6.911 | 4.966 | 65.753 |
| 3 | Lisse | 3.512 | 7.559 | 6.654 | 2.902 | 2.328 | 22.955 |
| 4 | Noordwijk | 6.346 | 14.763 | 12.819 | 5.554 | 4.026 | 43.508 |
| 5 | Teylingen | 6.020 | 12.837 | 11.273 | 3.973 | 3.337 | 37.440 |
| 6 | 30.732 | 87.269 | 54.854 | 21.859 | 16.482 | 211.196 | |
| 7 | Leiden | 16.126 | 59.504 | 30.170 | 11.578 | 7.721 | 125.099 |
| 8 | Leiderdorp | 4.297 | 8.704 | 7.834 | 3.460 | 2.761 | 27.056 |
| 9 | Oegstgeest | 4.509 | 8.205 | 7.066 | 2.688 | 2.372 | 24.840 |
| 10 | Voorschoten | 4.467 | 8.038 | 7.115 | 3.125 | 2.851 | 25.596 |
| 11 | Zoeterwoude | 1.333 | 2.818 | 2.669 | 1.008 | 777 | 8.605 |
| 12 | 27.022 | 59.625 | 48.333 | 19.512 | 13.513 | 168.005 | |
| 13 | Alphen a/d Rijn | 18.322 | 40.728 | 31.451 | 12.654 | 8.742 | 111.897 |
| 14 | Kaag en Braassem | 4.181 | 9.181 | 8.256 | 3.329 | 2.350 | 27.297 |
| 15 | Nieuwkoop | 4.519 | 9.716 | 8.626 | 3.529 | 2.421 | 28.811 |
| totaal | 89.180 | 214.167 | 157.730 | 63.287 | 46.702 | 571.066 |
Bron: Centraal Bureau voor de Statistiek (CBS)