Aantal inwoners naar leeftijd in Holland Rijnland per 1-1-2012.
| regio | 0-14 | 15-44 | 45-64 | 65-74 | 75 en ouder | totaal | |
|---|---|---|---|---|---|---|---|
| 0 | 33.132 | 67.304 | 52.021 | 17.211 | 13.001 | 182.669 | |
| 1 | Hillegom | 3.519 | 7.515 | 6.064 | 2.060 | 1.673 | 20.831 |
| 2 | Katwijk | 12.274 | 24.534 | 16.410 | 5.366 | 3.892 | 62.476 |
| 3 | Lisse | 3.861 | 8.012 | 6.578 | 2.277 | 1.783 | 22.511 |
| 4 | Noordwijk | 6.624 | 14.539 | 12.625 | 4.364 | 3.013 | 41.165 |
| 5 | Teylingen | 6.854 | 12.704 | 10.344 | 3.144 | 2.640 | 35.686 |
| 6 | 32.028 | 83.966 | 54.048 | 16.828 | 13.853 | 200.723 | |
| 7 | Leiden | 17.317 | 56.355 | 29.770 | 8.503 | 6.803 | 118.748 |
| 8 | Leiderdorp | 4.687 | 9.101 | 7.976 | 2.800 | 2.142 | 26.706 |
| 9 | Oegstgeest | 4.184 | 7.814 | 6.558 | 2.207 | 2.025 | 22.788 |
| 10 | Voorschoten | 4.497 | 7.864 | 7.154 | 2.486 | 2.309 | 24.310 |
| 11 | Zoeterwoude | 1.343 | 2.832 | 2.590 | 832 | 574 | 8.171 |
| 12 | 29.012 | 59.165 | 46.756 | 14.514 | 9.822 | 159.269 | |
| 13 | Alphen a/d Rijn | 19.680 | 40.699 | 30.334 | 9.372 | 6.473 | 106.558 |
| 14 | Kaag en Braassem | 4.558 | 8.991 | 7.980 | 2.491 | 1.717 | 25.737 |
| 15 | Nieuwkoop | 4.774 | 9.475 | 8.442 | 2.651 | 1.632 | 26.974 |
| totaal | 94.172 | 210.435 | 152.825 | 48.553 | 36.676 | 542.661 |
Bron: Centraal Bureau voor de Statistiek (CBS)