Night Light of Farnham (Quebec) from space (Canada) Src. Average luminocity for 10x10km area is 12.4683% and for 50x50km: 11.2866%.
Square area 10x10 km:
 0.95%
 2.54%
 0.79%
 1.27%
 3.97%
 0.63%
 0.48%
 0.95%
 3.02%
 2.22%
 83.17%Square area 50x50 km:
 1.49%
 2%
 0.97%
 0.97%
 1.14%
 1.33%
 2.08%
 2.03%
 3.64%
 7.38%
 76.98%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
45° 46' 33.4" North, 73° 41' 8.1" West
45° 17' 0.2" North, 72° 58' 56.8" West
44° 47' 11.4" North, 72° 16' 45.6" West
Some cities around Farnham sort by population:
• Saint-Jean-sur-Richelieu
		22.1 km =13.7 mi, 
276°
• Granby
		23.5 km =14.6 mi, 
56°
• Chambly
		29.9 km =18.6 mi, 
308°
• Cowansville
		20.5 km =12.7 mi, 
116°
• Carignan
		30.9 km =19.2 mi, 
306°
• Marieville
		22 km =13.7 mi, 
319°
• Saint-Pie
		25.1 km =15.6 mi, 
13°
• Richelieu
		27.2 km =16.9 mi, 
310°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016