Night Light of Ciudad Guzmán (Jalisco) from space (Mexico) Src. Average luminocity for 10x10km area is 37.4545% and for 50x50km: 5.1185%.
Square area 10x10 km:
 5.79%
 8.26%
 4.34%
 5.17%
 4.96%
 2.07%
 5.37%
 2.48%
 7.23%
 45.04%
 9.3%Square area 50x50 km:
 0.25%
 0.41%
 0.9%
 0.8%
 0.76%
 0.67%
 0.85%
 0.68%
 0.87%
 3.52%
 90.29%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
20° 21' 54.8" North, 104° 9' 53.4" West
19° 42' 16.8" North, 103° 27' 42.1" West
19° 2' 28.9" North, 102° 45' 30.9" West
Some cities around Ciudad Guzmán sort by population:
• Tuxpan
		18.9 km =11.7 mi, 
151°
• Sayula
		24.5 km =15.2 mi, 
323°
• Zapotiltic
		9.7 km =6 mi, 
151°
• Tamazula de Gordiano
		22.2 km =13.8 mi, 
97°
• Tecalitlán
		30.5 km =19 mi, 
147°
• Usmajac
		20.6 km =12.8 mi, 
336°
• San Sebastián del Sur
		10.1 km =6.3 mi, 
353°
• San Andrés Ixtlán
		12.8 km =8 mi, 
356°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016