Night Light of Mount Vernon (Ohio) from space (United States) Src. Average luminocity for 10x10km area is 36.3929% and for 50x50km: 2.7272%.
Square area 10x10 km:
 4.93%
 5.78%
 6.12%
 3.57%
 4.76%
 5.95%
 4.93%
 5.27%
 6.97%
 36.56%
 15.14%Square area 50x50 km:
 0.2%
 0.32%
 0.34%
 0.24%
 0.39%
 0.44%
 0.51%
 0.4%
 0.7%
 2.01%
 94.43%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
40° 55' 36.4" North, 83° 11' 19.9" West
40° 23' 36.2" North, 82° 29' 8.6" West
39° 51' 20.7" North, 81° 46' 57.4" West
Some cities around Mount Vernon sort by population:
• Newark
		38 km =23.6 mi, 
169°
• Mansfield
		40.7 km =25.3 mi, 
356°
• Heath
		41.4 km =25.7 mi, 
175°
• New Albany
		44.2 km =27.5 mi, 
218°
• Ontario
		41.7 km =25.9 mi, 
347°
• Granville
		36.3 km =22.6 mi, 
184°
• Sunbury
		35.8 km =22.2 mi, 
242°
• Apple Valley
		12.3 km =7.6 mi, 
65°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016