Growth and structure of the population in 2021 Municipality of Le Chesnay-Rocquencourt (78158)

Detailed figures

Paru le :27/06/2024

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.

POP T0 - Population estimates by age range

POP T0 - Population estimates by age range
Age 2010 % 2015 % 2021 %
Altogether 32 190 100,0 31 686 100,0 30 924 100,0
0 to 14 years old 5 470 17,0 5 410 17,1 5 013 16,2
15 to 29 years old 5 564 17,3 5 114 16,1 4 982 16,1
30 to 44 years old 6 392 19,9 5 802 18,3 5 113 16,5
45 to 59 years old 6 429 20,0 6 143 19,4 6 180 20,0
60 to 74 years old 5 107 15,9 5 667 17,9 5 450 17,6
75 and over 3 227 10,0 3 551 11,2 4 185 13,5
  • Sources: Insee, RP2010, RP2015 and RP2021, main operations, geography as of 01/01/2024.

POP G2 - Population estimates by age range

POP G2 - Population estimates by age range
2010 2015 2021
0 to 14 years old 17,0 17,1 16,2
15 to 29 years old 17,3 16,1 16,1
30 to 44 years old 19,9 18,3 16,5
45 to 59 years old 20,0 19,4 20,0
60 to 74 years old 15,9 17,9 17,6
75 and over 10,0 11,2 13,5
  • Sources: Insee, RP2010, RP2015 and RP2021, main operations, geography as of 01/01/2024.

POP G2 - Population estimates by age range

  • Sources: Insee, RP2010, RP2015 and RP2021, main operations, geography as of 01/01/2024.

POP T1 - Population since 1968: population and average density (residents per square kilometre)

POP T1 - Population since 1968: population and average density (residents per square kilometre)
1968(*) 1975(*) 1982 1990 1999 2010 2015 2021
Population 15 070 26 815 31 681 33 413 31 748 32 190 31 686 30 924
Average density (inhab / km²) 2 146,7 3 819,8 4 513,0 4 759,7 4 522,5 4 585,5 4 513,7 4 405,1
  • (*) 1967 and 1974 for overseas departments (DOM)
  • The data proposed is established for the same geographical scope, in the geography in force on 01/01/2024.
  • Sources: Insee, RP1967 to 1999 counts, RP2010 to RP2021 main holdings.

POP T2M - Demographic indicators since 1968

POP T2M - Demographic indicators since 1968
Demographic indicators 1968 to 1975 1975 to 1982 1982 to 1990 1990 to 1999 1999 to 2010 2010 to 2015 2015 to 2021
Average annual change in population in % 8,6 2,4 0,7 –0,6 0,1 –0,3 –0,4
due to the natural balance in % 1,7 1,2 1,0 0,7 0,5 0,3 0,0
due to the apparent balance of inflows and outflows in % 6,9 1,2 –0,3 –1,3 –0,4 –0,6 –0,4
Natality rate (‰) 23,1 17,6 15,6 13,2 12,0 10,5 9,0
Mortality rate (‰) 6,4 5,5 5,5 6,1 6,7 7,3 8,6
  • The data proposed is established for the same geographical scope, in the geography in force on 01/01/2024
  • Sources: Insee, RP1968 to 1999 counts, RP2010 to RP2021 main holdings - Civil status

POP T3 - Population by age and sex in 2021

POP T3 - Population by age and sex in 2021
Age Male % Female %
Altogether 14 459 100,0 16 465 100,0
0 to 14 years old 2 601 18,0 2 412 14,7
15 to 29 years old 2 449 16,9 2 532 15,4
30 to 44 years old 2 471 17,1 2 643 16,0
45 to 59 years old 3 057 21,1 3 123 19,0
60 to 74 years old 2 285 15,8 3 165 19,2
75 to 89 years old 1 401 9,7 2 161 13,1
90 years and over 196 1,4 428 2,6
0 to 19 years old 3 615 25,0 3 354 20,4
20 to 64 years old 7 787 53,9 8 333 50,6
65 and over 3 057 21,1 4 777 29,0
  • Source: Insee, RP2021 main operation, geography as of 01/01/2024.

POP T4 - Home address 1 year before the study

POP T4 - Home address 1 year before the study
Home adress 2015 % 2021 %
People one year old and over, previously living: 31 384 100,0 30 664 100,0
In the same house 27 771 88,5 27 372 89,3
In another house in the same town 1 111 3,5 932 3,0
In another town 2 503 8,0 2 360 7,7
  • Source: Insee, RP2015, RP2021 main operations, geography as of 01/01/2024.

POP G3 - Home address 1 year before for people living in another house, by age in %

POP G3 - Home address 1 year before for people living in another house, by age in %
In another house in the same town In another town
1 to 14 years old 33,9 66,1
15 to 24 years old 23,6 76,4
25 to 54 years old 27,1 72,9
55 years old and over 29,5 70,5
  • Source: Insee, RP2021 main operation, geography as of 01/01/2024.

POP G3 - Home address 1 year before for people living in another house, by age in %

  • Source: Insee, RP2021 main operation, geography as of 01/01/2024.

POP T5 - Population aged 15 years and over by socioprofessional classification

POP T5 - Population aged 15 years and over by socioprofessional classification
socioprofessional classification 2010 % 2015 % 2021 %
Altogether 26 711 100,0 26 268 100,0 26 384 100,0
Farmer operators 11 0,0 0 0,0 0 0,0
Craftsmen, traders, business leaders 725 2,7 770 2,9 855 3,2
Managers and higher intellectual professions 6 572 24,6 6 249 23,8 6 378 24,2
Middle-level occupations 4 131 15,5 3 983 15,2 3 752 14,2
Services employee 3 199 12,0 3 089 11,8 2 778 10,5
Blue-collar workers 849 3,2 917 3,5 863 3,3
Retirees 6 852 25,7 7 201 27,4 7 595 28,8
Other people with no professional activity 4 373 16,4 4 060 15,5 4 165 15,8
  • Sources: Insee, RP2010, RP2015 and RP2021, additional operations, geography as of 01/01/2024.

POP T6 - Population aged 15 years and over by sex, age and socioprofessional classification in 2021

POP T6 - Population aged 15 years and over by sex, age and socioprofessional classification in 2021
socioprofessional classification Male Female Share in % of the population aged
15 to 24 years old 25 to 54 years old 55 years and over
Altogether 12 144 14 240 100,0 100,0 100,0
Farmer operators 0 0 0,0 0,0 0,0
Craftsmen, traders, business leaders 653 202 0,3 4,9 2,6
Managers and higher intellectual professions 3 699 2 678 4,3 41,4 14,2
Middle-level occupations 1 442 2 310 8,9 24,4 6,4
Services employee 919 1 858 11,0 17,0 4,4
Blue-collar workers 728 135 4,6 5,1 1,1
Retirees 3 154 4 441 0,0 0,1 64,1
Other people without professional activity 1 549 2 616 70,9 7,0 7,2
  • Source: Insee, RP2021 additional operation, geography as of 01/01/2024.