Night Light of Salem (Indiana) from space (United States) Src. Average luminocity for 10x10km area is 14.6039% and for 50x50km: 1.7456%.
Square area 10x10 km:
 0.16%
 1.62%
 4.55%
 2.76%
 0.65%
 2.11%
 2.44%
 2.6%
 0%
 2.92%
 80.19%Square area 50x50 km:
 0.03%
 0.13%
 0.35%
 0.24%
 0.12%
 0.17%
 0.21%
 0.5%
 0.38%
 1.38%
 96.49%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
39° 9' 10.7" North, 86° 48' 15.2" West
38° 36' 20.2" North, 86° 6' 3.9" West
38° 3' 14.6" North, 85° 23' 52.7" West
Some cities around Salem sort by population:
• Jeffersonville
		48.3 km =30 mi, 
139°
• New Albany
		43 km =26.7 mi, 
145°
• Clarksville
		45.4 km =28.2 mi, 
139°
• Seymour
		43.4 km =27 mi, 
24°
• Bedford
		43.9 km =27.3 mi, 
310°
• Sellersburg
		37.9 km =23.5 mi, 
127°
• Charlestown
		41.1 km =25.5 mi, 
114°
• Scottsburg
		30.1 km =18.7 mi, 
72°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016