Night Light of Piedmont (South Carolina) from space (United States) Src. Average luminocity for 10x10km area is 44.9725% and for 50x50km: 43.948%.
Square area 10x10 km:
 0.37%
 0.37%
 5.49%
 7.88%
 9.52%
 10.07%
 19.78%
 22.53%
 22.89%
 1.1%
 0%Square area 50x50 km:
 5.95%
 6.39%
 8.52%
 8.84%
 8.31%
 5.7%
 5.86%
 6.55%
 8.52%
 14.11%
 21.23%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
35° 16' 42.1" North, 83° 10' 3.7" West
34° 42' 8.4" North, 82° 27' 52.5" West
34° 7' 20.2" North, 81° 45' 41.2" West
Some cities around Piedmont sort by population:
• Greenville
		17.9 km =11.1 mi, 
21°
• Mauldin
		16.5 km =10.3 mi, 
58°
• Easley
		18.9 km =11.7 mi, 
318°
• Simpsonville
		19.6 km =12.2 mi, 
78°
• Gantt
		11.5 km =7.1 mi, 
18°
• Parker
		16.5 km =10.3 mi, 
3°
• Powdersville
		10.3 km =6.4 mi, 
345°
• Welcome
		14 km =8.7 mi, 
9°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016