Night Light of Iisalmi (Northern Savonia) from space (Finland) Src. Average luminocity for 10x10km area is 38.5492% and for 50x50km: 2.8183%.
Square area 10x10 km:
 11.55%
 12.03%
 3.22%
 0.76%
 1.42%
 2.56%
 2.84%
 4.73%
 12.41%
 21.12%
 27.37%Square area 50x50 km:
 0.72%
 0.78%
 0.18%
 0.07%
 0.09%
 0.18%
 0.2%
 0.31%
 0.78%
 2.28%
 94.39%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
63° 52' 13.9" North, 26° 29' 15.2" East
63° 33' 32.9" North, 27° 11' 26.4" East
63° 14' 39.6" North, 27° 53' 37.7" East
Some cities around Iisalmi sort by population:
• Kuopio
		78 km =48.5 mi, 
161°
• Kajaani
		78.8 km =49 mi, 
19°
• Siilinjärvi
		58 km =36 mi, 
155°
• Kiuruvesi
		30.1 km =18.7 mi, 
289°
• Lapinlahti
		23.8 km =14.8 mi, 
154°
• Nilsiä
		59.2 km =36.8 mi, 
131°
• Pyhäjärvi
		64.9 km =40.3 mi, 
280°
• Pielavesi
		42.4 km =26.3 mi, 
211°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016