Night Light of Willis (Texas) from space (United States) Src. Average luminocity for 10x10km area is 55.1337% and for 50x50km: 25.3215%.
Square area 10x10 km:
 1.83%
 1.83% 2.38%
 2.38% 15.57%
 15.57% 10.62%
 10.62% 8.61%
 8.61% 15.2%
 15.2% 21.25%
 21.25% 12.09%
 12.09% 7.33%
 7.33% 5.13%
 5.13% 0%
 0%Square area 50x50 km:
 1.45%
 1.45% 1.93%
 1.93% 3.93%
 3.93% 3.58%
 3.58% 5.41%
 5.41% 6.61%
 6.61% 7.19%
 7.19% 6.46%
 6.46% 6.08%
 6.08% 8.97%
 8.97% 48.38%
 48.38%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
31° 1' 45.6" North, 96° 10' 59.1" West
30° 25' 29.7" North, 95° 28' 47.8" West
29° 49' 0.3" North, 94° 46' 36.6" West
Some cities around Willis sort by population:
• The Woodlands
		29.7 km =18.5 mi,  181°
181°
• Conroe
		12.8 km =8 mi,  169°
169°
• Spring
		38.8 km =24.1 mi,  171°
171°
• Cypress
		54.8 km =34.1 mi,  202°
202°
• Huntsville
		33.9 km =21.1 mi,  348°
348°
• Humble
		51.8 km =32.2 mi,  156°
156°
• Tomball
		38.7 km =24 mi,  199°
199°
• Cleveland
		39 km =24.2 mi,  103°
103°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016