Night Light of Valparaiso (Indiana) from space (United States) Src. Average luminocity for 10x10km area is 54.0425% and for 50x50km: 20.1212%.
Square area 10x10 km:
 7.14%
 9.52%
 6.12%
 6.29%
 7.65%
 13.44%
 14.97%
 14.29%
 11.39%
 9.01%
 0.17%Square area 50x50 km:
 2.16%
 2.54%
 2.54%
 2.69%
 3.62%
 3.92%
 3.77%
 3.83%
 5.96%
 10.33%
 58.64%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
41° 59' 52" North, 87° 45' 51.4" West
41° 28' 23.1" North, 87° 3' 40.1" West
40° 56' 38.8" North, 86° 21' 28.9" West
Some cities around Valparaiso sort by population:
• Portage
		14.9 km =9.3 mi, 
320°
• Hobart
		17.4 km =10.8 mi, 
292°
• Chesterton
		15.3 km =9.5 mi, 
359°
• Lake Station
		18.6 km =11.6 mi, 
307°
• Lakes of the Four Seasons
		14.5 km =9 mi, 
241°
• Westville
		15.4 km =9.6 mi, 
60°
• Winfield
		19.4 km =12.1 mi, 
247°
• South Haven
		9.9 km =6.2 mi, 
320°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016