Night Light of Monmouth (Illinois) from space (United States) Src. Average luminocity for 10x10km area is 14.4694% and for 50x50km: 3.1238%.
Square area 10x10 km:
 1.19%
 2.21%
 1.36%
 1.36%
 3.06%
 2.89%
 1.53%
 1.36%
 4.08%
 1.87%
 79.08%Square area 50x50 km:
 0.43%
 0.51%
 0.46%
 0.31%
 0.4%
 0.26%
 0.51%
 0.49%
 0.86%
 1.67%
 94.09%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
41° 26' 26.4" North, 91° 21' 1.8" West
40° 54' 41.1" North, 90° 38' 50.5" West
40° 22' 40.5" North, 89° 56' 39.3" West
Some cities around Monmouth sort by population:
• Rock Island
		66.7 km =41.4 mi, 
4°
• Galesburg
		23.5 km =14.6 mi, 
80°
• Burlington
		40.8 km =25.4 mi, 
253°
• Muscatine
		66 km =41 mi, 
329°
• Macomb
		50.3 km =31.3 mi, 
182°
• Canton
		64.8 km =40.3 mi, 
127°
• Fort Madison
		64.4 km =40 mi, 
240°
• Milan
		60.6 km =37.7 mi, 
5°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016