This municipality has experienced contour changes since 2012:
01/01/2019 – Le Chesnay devient commune déléguée (chef-lieu) au sein du Chesnay-Rocquencourt
(78158) (commune nouvelle).
01/01/2019 – Création de la commune nouvelle du Chesnay-Rocquencourt en lieu et place
des communes du Chesnay (78158) et de Rocquencourt (78524) devenues déléguées.
In the case of a merger, when the geography of the source indicated under the table
/ graph is after the date of the merger, the data correspond to those of the new municipality.
tableauFOR T1 - Enrollment by age and sex in 2021
FOR T1 - Enrollment by age and sex in 2021
Age
Total
Enrolled population
Enrolled population in %
Altogether
Male
Female
2 to 5 years old
1 103
839
76,0
76,9
75,1
6 to 10 years old
1 753
1 709
97,4
97,1
97,8
11 to 14 years old
1 576
1 548
98,2
98,3
98,2
15 to 17 years old
1 275
1 256
98,6
98,8
98,3
18 to 24 years old
2 118
1 441
68,1
70,3
65,9
25 to 29 years old
1 589
122
7,6
9,7
5,8
30 years old and over
20 929
241
1,2
1,1
1,2
Source: Insee, RP2021 principal exploitation, geography at the 01/01/2024.