The café Au Reveil Matin at 22 Avenue Jean Jaurès was the departure point of the first Tour de France in 1903.

Situated in the region of Île-de-France, Montgeron has an oceanic climate, with cool winters and mild summers, and has more precipitation than others in the central parts.

Due to the lower urban density between Paris and its suburbs, a difference of one to two degrees Celsius is felt strongly.

Recent development and heavy traffic have made access to the city center much more difficult, which accentuates commercial desertification.

From 1856, following the arrival of the railway, a period of constant progress began, only briefly interrupted by the losses due to the Franco-Prussian War of 1870, the milestone of two thousand inhabitants being crossed in 1896.

This the figure doubled in the following twelve years and reached the historic peak of twenty-three thousand seven hundred eighty-six in 1975.

[12] In that year, the largest communities were distributed between 3.2% of the total for Portuguese population, 0.9% for Algerians, 0.5% for Moroccans, 0.4% for Turks and Italians, 0.3% for Tunisians and 0.2% for Spaniards.

There is a library called Médiathèque du Carré d'Art, a post office, and the Avenue de la République has restaurants and shops.