Night Light of Willoughby (Ohio) from space (United States) Src. Average luminocity for 10x10km area is 74.9286% and for 50x50km: 30.8047%.
Square area 10x10 km:
 18.99%
 25.16%
 10.88%
 7.63%
 10.88%
 4.22%
 5.03%
 8.93%
 7.79%
 0.49%
 0%Square area 50x50 km:
 10.9%
 7.14%
 2.14%
 2.16%
 2.64%
 2.79%
 3.2%
 3.49%
 6.12%
 9.72%
 49.7%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
42° 9' 47.2" North, 82° 6' 34.7" West
41° 38' 23.2" North, 81° 24' 23.4" West
41° 6' 43.8" North, 80° 42' 12.2" West
Some cities around Willoughby sort by population:
• Euclid
		11.3 km =7 mi, 
242°
• Mentor
		6.3 km =3.9 mi, 
62°
• Eastlake
		4 km =2.5 mi, 
293°
• Wickliffe
		5.5 km =3.4 mi, 
225°
• Richmond Heights
		12.9 km =8 mi, 
221°
• Highland Heights
		11.4 km =7.1 mi, 
211°
• Mentor-on-the-Lake
		8.2 km =5.1 mi, 
27°
• Kirtland
		3.9 km =2.4 mi, 
107°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016