Night Light of Villefontaine (Auvergne-Rhône-Alpes) from space (France) Src. Average luminocity for 10x10km area is 42.7485% and for 50x50km: 26.1301%.
Square area 10x10 km:
 7.42%
 11.52%
 3.94%
 3.64%
 3.33%
 3.94%
 4.7%
 4.55%
 25.45%
 26.97%
 4.55%Square area 50x50 km:
 6.77%
 5.35%
 1.85%
 2.27%
 2.57%
 3.2%
 3.26%
 4.52%
 7.46%
 12.02%
 50.74%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
46° 6' 8.9" North, 4° 26' 50.8" East
45° 36' 46" North, 5° 9' 2.1" East
45° 7' 7.6" North, 5° 51' 13.3" East
Some cities around Villefontaine sort by population:
• Bourgoin-Jallieu
		10 km =6.2 mi, 
107°
• L’Isle-d’Abeau
		5.8 km =3.6 mi, 
82°
• Mions
		16.4 km =10.2 mi, 
289°
• Charvieu-Chavagneux
		15.3 km =9.5 mi, 
359°
• Saint-Quentin-Fallavier
		4.5 km =2.8 mi, 
319°
• La Verpillière
		2.4 km =1.5 mi, 
350°
• Saint-Bonnet-de-Mure
		12.8 km =8 mi, 
312°
• Tignieu
		15.7 km =9.8 mi, 
10°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016