This municipality has experienced contour changes since 2013 :
01/01/2019 – Saint-Pierre-de-Plesguen devient commune déléguée (chef-lieu) au sein
de Mesnil-Roc'h (35308) (commune nouvelle).
01/01/2019 – Création de la commune nouvelle de Mesnil-Roc'h en lieu et place des
communes de Lanhélin (35147), de Saint-Pierre-de-Plesguen (35308) et de Tressé (35344)
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.
tableauEMP T1 - Population aged 15 to 64 by economic activity
EMP T1 - Population aged 15 to 64 by economic activity
Economic activity
2011
2016
2022
Altogether
2 359
2 526
2 717
Working age adult in %
77,0
79,2
80,1
Working age adults with a job in %
69,7
72,2
74,7
Unemployed workers in %
7,3
6,9
5,4
Economically inactive people in %
23,0
20,8
19,9
Pupils, students or interns in %
6,1
7,8
7,3
Retirees in %
9,8
6,5
5,5
Other economically inactive people in %
7,2
6,6
7,0
Sources : Insee, RP2011, RP2016 and RP2022, main operations, geography as of 01/01/2025.
tableauEMP T2 - Economic activity and employment of the population aged 15 to 64 by sex and
by age in 2022
EMP T2 - Economic activity and employment of the population aged 15 to 64 by sex and
by age in 2022
Sex and age
Population
Active people
Activity rate in %
Working people
Employment rate in %
Altogether
2 717
2 178
80,1
2 030
74,7
15 to 24 years old
410
192
46,8
168
40,9
25 to 54 years old
1 827
1 715
93,9
1 611
88,2
55 to 64 years old
479
270
56,4
251
52,3
Male
1 388
1 116
80,4
1 045
75,3
15 to 24 years old
234
114
48,9
102
43,4
25 to 54 years old
914
864
94,5
815
89,2
55 to 64 years old
240
138
57,6
129
53,5
Female
1 329
1 061
79,8
985
74,1
15 to 24 years old
176
77
43,9
66
37,7
25 to 54 years old
914
852
93,2
796
87,1
55 to 64 years old
239
132
55,1
122
51,0
Source : Insee, RP2022 main operation, geography as of 01/01/2025.