Night Light of San Juan Xiutetelco (Puebla) from space (Mexico) Src. Average luminocity for 10x10km area is 37.0289% and for 50x50km: 8.495%.
Square area 10x10 km:
 1.65%
 1.86%
 5.17%
 7.44%
 13.02%
 2.89%
 9.09%
 4.55%
 12.6%
 32.02%
 9.71%Square area 50x50 km:
 0.13%
 0.24%
 1%
 1.21%
 1.94%
 1.06%
 2.29%
 2.08%
 2.59%
 7.48%
 79.97%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
20° 27' 21" North, 98° 1' 44.1" West
19° 47' 44.3" North, 97° 19' 32.8" West
19° 7' 57.7" North, 96° 37' 21.6" West
Some cities around San Juan Xiutetelco sort by population:
• Teziutlan
		4.3 km =2.7 mi, 
304°
• Altotonga
		9.1 km =5.7 mi, 
111°
• Jalacingo
		2 km =1.2 mi, 
64°
• Chinautla
		7.1 km =4.4 mi, 
292°
• Atempan
		14.7 km =9.1 mi, 
289°
• Hueyapán
		15.8 km =9.8 mi, 
307°
• Hueytamalco
		16.6 km =10.3 mi, 
13°
• Atoluca
		7.2 km =4.5 mi, 
336°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016