Night Light of Washington (Illinois) from space (United States) Src. Average luminocity for 10x10km area is 24.9692% and for 50x50km: 19.0127%.
Square area 10x10 km:
 0.49%
 1.46%
 5.52%
 1.79%
 5.36%
 4.71%
 4.38%
 4.06%
 13.15%
 22.08%
 37.01%Square area 50x50 km:
 2.27%
 2.97%
 2.92%
 2.6%
 3.12%
 3.25%
 3.03%
 3.12%
 5.2%
 7.46%
 64.07%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
41° 14' 4.4" North, 90° 6' 37.6" West
40° 42' 13.1" North, 89° 24' 26.3" West
40° 10' 6.6" North, 88° 42' 15.1" West
Some cities around Washington sort by population:
• Peoria
		15.4 km =9.6 mi, 
265°
• North Peoria
		15 km =9.3 mi, 
275°
• East Peoria
		15.2 km =9.4 mi, 
254°
• Morton
		11 km =6.8 mi, 
203°
• Bartonville
		21.5 km =13.4 mi, 
253°
• Peoria Heights
		14.9 km =9.3 mi, 
289°
• Eureka
		11.5 km =7.1 mi, 
80°
• Creve Coeur
		16.7 km =10.4 mi, 
247°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016