Night Light of Pleasant Hill (California) from space (United States) Src. Average luminocity for 10x10km area is 69.5568% and for 50x50km: 35.7142%.
Square area 10x10 km:
 15.75%
 13.47%
 6.82%
 5.68%
 15.75%
 25.65%
 9.42%
 3.57%
 3.9%
 0%
 0%Square area 50x50 km:
 6.49%
 5.86%
 2.1%
 4.57%
 5.86%
 7.24%
 6.35%
 5.35%
 12.57%
 15.4%
 28.23%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
38° 30' 1.3" North, 122° 45' 50.1" West
37° 56' 52.7" North, 122° 3' 38.9" West
37° 23' 29.1" North, 121° 21' 27.6" West
Some cities around Pleasant Hill sort by population:
• Concord
		4.2 km =2.6 mi, 
38°
• Walnut Creek
		4.6 km =2.9 mi, 
184°
• Martinez
		10.2 km =6.3 mi, 
321°
• Lafayette
		8.5 km =5.3 mi, 
215°
• Clayton
		11 km =6.8 mi, 
94°
• Waldon
		2.5 km =1.6 mi, 
169°
• Contra Costa Centre
		2.3 km =1.4 mi, 
173°
• Saranap
		7.1 km =4.4 mi, 
190°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016