Night Light of Summit (Illinois) from space (United States) Src. Average luminocity for 10x10km area is 99.0747% and for 50x50km: 85.6529%.
Square area 10x10 km:
 75%
 75% 22.73%
 22.73% 2.27%
 2.27% 0%
 0% 0%
 0% 0%
 0% 0%
 0% 0%
 0% 0%
 0% 0%
 0% 0%
 0%Square area 50x50 km:
 45.66%
 45.66% 20.69%
 20.69% 9.22%
 9.22% 6.52%
 6.52% 5.04%
 5.04% 4.03%
 4.03% 1.86%
 1.86% 1.17%
 1.17% 0.86%
 0.86% 1.27%
 1.27% 3.67%
 3.67%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
42° 18' 36.8" North, 88° 30' 48.5" West
41° 47' 17.1" North, 87° 48' 37.2" West
41° 15' 42.1" North, 87° 6' 26" West
Some cities around Summit sort by population:
• Brookfield
		5.3 km =3.3 mi,  319°
319°
• Bridgeview
		4.3 km =2.7 mi,  173°
173°
• La Grange
		5.2 km =3.2 mi,  291°
291°
• Justice
		5.4 km =3.4 mi,  205°
205°
• Lyons
		2.9 km =1.8 mi,  347°
347°
• Riverside
		5.3 km =3.3 mi,  348°
348°
• Stickney
		4.4 km =2.7 mi,  31°
31°
• Countryside
		5.7 km =3.5 mi,  264°
264°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016