This municipality has experienced contour changes since 2013 :
01/01/2019 – Saint-Germain-en-Laye devient commune déléguée (chef-lieu) au sein de
Saint-Germain-en-Laye (78551) (commune nouvelle).
01/01/2019 – Création de la commune nouvelle de Saint-Germain-en-Laye en lieu et place
des communes de Fourqueux (78251) et de Saint-Germain-en-Laye (78551) 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.
tableauLOG T1 - Growth estimates of the number of housings by category since 1968
LOG T1 - Growth estimates of the number of housings by category since 1968
Housing category
1968(*)
1975(*)
1982
1990
1999
2006
2011
2016
2022
Altogether
13 229
14 869
16 657
18 811
19 618
20 722
20 767
21 245
22 249
Principal residences
12 211
13 494
15 202
16 993
17 328
18 733
18 829
19 068
20 383
Second dwellings and occasional dwellings
178
188
298
548
409
454
575
791
874
Vacant accommodations
840
1 187
1 157
1 270
1 881
1 535
1 363
1 386
992
(*) 1967 and 1974 for the overseas departments
Sources : Insee, RP1967 to RP1999 counts, RP2006 to RP2022 main holdings.
tableauLOG T1bis - Categories of housings
LOG T1bis - Categories of housings
Category of housing
2011
2016
2022
Principal residences
90,7
89,8
91,6
Second dwellings and occasional dwellings
2,8
3,7
3,9
Vacant dwellings
6,6
6,5
4,5
Sources : Insee, RP2011, RP2016 and RP2022, main operations, geography as of 01/01/2025.
tableauLOG T2 - Types of housings
LOG T2 - Types of housings
Type of housing
2011
%
2016
%
2022
%
Altogether
20 767
100,0
21 245
100,0
22 249
100,0
Houses
4 325
20,8
4 337
20,4
4 323
19,4
Flats
16 137
77,7
16 658
78,4
17 503
78,7
Others
305
1,5
250
1,2
423
1,9
Sources : Insee, RP2011, RP2016 et RP2022, exploitations principales, géographie au
01/01/2025.
tableauLOG T2bis - Contributions to the change in the number of principal residences
LOG T2bis - Contributions to the change in the number of principal residences
Contributions
2011-2016
%
2016-2022
%
Total change
239
1,2
1 315
6,2
due to the household size effect
462
2,2
694
3,3
due to the demographic effect
–223
–1,1
621
2,9
Note: The change in the number of households (and therefore in the number of main
residences) can be broken down into two effects: the "household size effect" and the
"demographic effect."
Indeed, a decrease in average household size leads to an increased housing need, even
if the population remains stable. The remaining part of the change is referred to
as the demographic effect.
These effects can be either positive or negative.
Sources : Insee, RP2011, RP2016 et RP2022, exploitations principales, géographie au
01/01/2025.
tableauLOG T3 - Principal residences by number of rooms
LOG T3 - Principal residences by number of rooms
Number of rooms
2011
%
2016
%
2022
%
Altogether
18 829
100,0
19 068
100,0
20 383
100,0
1 room
1 753
9,3
2 326
12,2
2 567
12,6
2 rooms
3 297
17,5
3 242
17,0
3 432
16,8
3 rooms
4 426
23,5
4 286
22,5
4 786
23,5
4 rooms
3 963
21,0
3 936
20,6
3 854
18,9
5 rooms or above
5 390
28,6
5 277
27,7
5 745
28,2
Sources : Insee, RP2011, RP2016 and RP2022, main operations, geography as of 01/01/2025.
tableauLOG T4 - Principal residences average number of rooms
LOG T4 - Principal residences average number of rooms
Type of main residence
2011
2016
2022
All main residences
3,7
3,6
3,7
House
5,9
5,9
6,0
Flat
3,1
3,1
3,1
Sources : Insee, RP2011, RP2016 and RP2022, main operations, geography as of 01/01/2025.
tableauLOG T4bis - Dwelling occupancy index
LOG T4bis - Dwelling occupancy index
Occupancy index
2011
2016
2022
Standard occupancy
26,7
27,1
28,0
Moderate over-occupation
13,9
16,7
17,6
Severe over-occupation
1,0
1,3
0,9
Moderate under-occupation
24,2
22,4
21,0
Severe under-occupation
15,8
14,2
13,8
Very severe under-occupation
18,4
18,3
18,8
Sources : Insee, RP2011, RP2016 and RP2022, main operations, geography as of 01/01/2025.
tableauLOG T5 - Principal residences in 2022 by completion period
LOG T5 - Principal residences in 2022 by completion period
Completion period
Number
%
Principal residences build before 2020
20 000
100,0
Before 1919
2 809
14,0
From 1919 to 1945
1 444
7,2
From 1946 to 1970
6 275
31,4
From 1971 to 1990
6 358
31,8
From 1991 to 2005
1 857
9,3
From 2006 to 2019
1 257
6,3
Source : Insee, RP2022 main operation, geography as of 01/01/2025.
