Night Light of Keokuk (Iowa) from space (United States) Src. Average luminocity for 10x10km area is 30.7398% and for 50x50km: 2.5619%.
Square area 10x10 km:
 3.91%
 4.25%
 5.44%
 2.89%
 7.14%
 3.91%
 3.23%
 3.06%
 2.04%
 35.88%
 28.23%Square area 50x50 km:
 0.2%
 0.24%
 0.38%
 0.23%
 0.49%
 0.31%
 0.3%
 0.41%
 0.34%
 2.2%
 94.89%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
40° 55' 50.2" North, 92° 5' 16.8" West
40° 23' 50.2" North, 91° 23' 5.5" West
39° 51' 34.8" North, 90° 40' 54.3" West
Some cities around Keokuk sort by population:
• Quincy
		51.4 km =31.9 mi, 
182°
• Burlington
		51.1 km =31.8 mi, 
26°
• Macomb
		60.7 km =37.7 mi, 
83°
• Hannibal
		76.6 km =47.6 mi, 
178°
• Fort Madison
		26.5 km =16.5 mi, 
12°
• Fairfield
		83.6 km =51.9 mi, 
324°
• Monmouth
		84.5 km =52.5 mi, 
47°
• Mount Pleasant
		64.6 km =40.1 mi, 
346°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016