Night Light of Fairfield (Iowa) from space (United States) Src. Average luminocity for 10x10km area is 17.682% and for 50x50km: 0.9421%.
Square area 10x10 km:
 1.7%
 2.04%
 4.25%
 2.38%
 3.4%
 2.55%
 1.19%
 0.17%
 0%
 7.31%
 75%Square area 50x50 km:
 0.06%
 0.08%
 0.18%
 0.09%
 0.2%
 0.22%
 0.16%
 0.05%
 0.05%
 0.27%
 98.63%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
41° 32' 13.5" North, 92° 39' 56.9" West
41° 0' 31.1" North, 91° 57' 45.6" West
40° 28' 33.3" North, 91° 15' 34.4" West
Some cities around Fairfield sort by population:
• Iowa City
		81 km =50.3 mi, 
26°
• Burlington
		74.8 km =46.5 mi, 
107°
• Ottumwa
		37.7 km =23.4 mi, 
271°
• Coralville
		80.8 km =50.2 mi, 
23°
• Oskaloosa
		65.4 km =40.6 mi, 
299°
• Fort Madison
		68.9 km =42.8 mi, 
127°
• Mount Pleasant
		34.3 km =21.3 mi, 
98°
• Washington
		39.4 km =24.5 mi, 
34°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016