Night Light of Coteau-du-Lac (Quebec) from space (Canada) Src. Average luminocity for 10x10km area is 32.227% and for 50x50km: 13.0354%.
Square area 10x10 km:
 4.92%
 3.97%
 1.75%
 5.08%
 6.51%
 3.81%
 4.76%
 5.4%
 11.75%
 27.94%
 24.13%Square area 50x50 km:
 1.21%
 2.09%
 1.52%
 1.68%
 1.69%
 1.47%
 2.14%
 2.82%
 5.46%
 9.86%
 70.06%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
45° 47' 33" North, 74° 53' 8.4" West
45° 18' 0.3" North, 74° 10' 57.1" West
44° 48' 12.1" North, 73° 28' 45.9" West
Some cities around Coteau-du-Lac sort by population:
• Salaberry-de-Valleyfield
		6.8 km =4.2 mi, 
144°
• Vaudreuil-Dorion
		16.2 km =10.1 mi, 
46°
• Les Coteaux
		4.3 km =2.7 mi, 
244°
• Saint-Lazare
		11.8 km =7.3 mi, 
19°
• Pincourt
		18.2 km =11.3 mi, 
59°
• L'Île-Perrot
		20.5 km =12.7 mi, 
63°
• Saint-Zotique
		7.6 km =4.7 mi, 
223°
• Hudson
		16.9 km =10.5 mi, 
8°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016