The name Thiais comes from Medieval LatinTheodasium or Theodaxium, meaning "estate of Theodasius", a Gallo-Roman landowner.
The Austrian writer Joseph Roth, exiled due to his opposition to the Nazi regime, lived at Thiais at the end of the 1930s and is buried at the local cemetery. The tomb of Russian writer Yevgeny Zamyatin is also there. Expatriate American journalist and novelist William Gardner Smith died there in 1974.[4]
Thiais is best known for its cemetery, the second largest of Paris.
Population
Historical population
Year
Pop.
±% p.a.
1793
1,028
—
1800
653
−6.28%
1806
760
+2.56%
1821
620
−1.35%
1831
1,032
+5.23%
1836
1,086
+1.03%
1841
1,172
+1.54%
1846
1,140
−0.55%
1851
1,099
−0.73%
1856
1,155
+1.00%
1861
1,268
+1.88%
1866
1,462
+2.89%
1872
1,364
−1.15%
1876
1,760
+6.58%
1881
2,120
+3.79%
1886
2,591
+4.09%
1891
2,616
+0.19%
1896
2,771
+1.16%
Year
Pop.
±% p.a.
1901
3,018
+1.72%
1906
3,477
+2.87%
1911
4,036
+3.03%
1921
4,469
+1.02%
1926
5,787
+5.30%
1931
7,034
+3.98%
1936
8,246
+3.23%
1946
8,350
+0.13%
1954
10,026
+2.31%
1962
15,116
+5.27%
1968
22,481
+6.84%
1975
27,298
+2.81%
1982
26,637
−0.35%
1990
27,515
+0.41%
1999
28,232
+0.29%
2007
29,273
+0.45%
2012
29,422
+0.10%
2017
29,017
−0.28%
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Thiais is served by Pont de Rungis–Aéroport d'Orly station on Paris RER line C. It is also served by Choisy-le-Roi station on Paris RER line C. This station, although administratively located on the territory of Choisy-le-Roi, lies closer to the town center of Thiais than Pont de Rungis – Aéroport d'Orly station does, and is thus used by people in Thiais.