Commune of Montgeron
|Location (in red) within Paris inner and outer suburbs|
|Canton||Montgeron (chief town)|
|Intercommunality||CA Sénart Val de Seine|
|Elevation||31–88 m (100–290 ft)
(avg. 32 m/100 ft)
|Land area1||11.22 km2 (4.33 sq mi)|
|Population2||22,900 (2005 )|
|- Density||2,041 /km2 (5,290 /sq mi)|
|INSEE/Postal code||91421/ 91230|
|1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km² (0.386 sq mi or 247 acres) and river estuaries.|
|2 Population sans doubles comptes: residents of multiple communes (e.g., students and military personnel) only counted once.|
At the 1999 census, the population was 21,905. The estimate for 2005 was 22,900.
Inhabitants of Montgeron are known as Montgeronnais.
Montgeron is served by Montgeron – Crosne station on Paris RER line D.
The local school (J-C Gatinot) was decorated by painter Maurice Boitel.