Night Light of Williamsport (Pennsylvania) from space (United States) Src. Average luminocity for 10x10km area is 39.5244% and for 50x50km: 5.0487%.
Square area 10x10 km:
 6.49%
 10.23%
 4.22%
 2.76%
 3.57%
 5.03%
 5.19%
 3.41%
 10.71%
 41.72%
 6.66%Square area 50x50 km:
 0.42%
 0.66%
 0.56%
 0.59%
 0.53%
 0.72%
 0.76%
 0.86%
 1.14%
 4.73%
 89.04%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
41° 46' 3.9" North, 77° 42' 15.2" West
41° 14' 28.3" North, 77° 0' 3.9" West
40° 42' 37.2" North, 76° 17' 52.7" West
Some cities around Williamsport sort by population:
• Bloomsburg
		52.8 km =32.8 mi, 
119°
• Sunbury
		45.5 km =28.3 mi, 
157°
• Lock Haven
		39.1 km =24.3 mi, 
252°
• Shamokin
		62.5 km =38.8 mi, 
143°
• Milton
		28.5 km =17.7 mi, 
153°
• South Williamsport
		1 km =0.6 mi, 
170°
• Selinsgrove
		50.5 km =31.4 mi, 
166°
• Lewisburg
		32.3 km =20.1 mi, 
162°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016