Night Light of Laredo (Cantabria) from space (Spain) Src. Average luminocity for 10x10km area is 25.1571% and for 50x50km: 6.9249%.
Square area 10x10 km:
 2.54%
 2.54%
 3.02%
 5.4%
 3.33%
 3.49%
 0.32%
 5.08%
 5.87%
 32.86%
 35.56%Square area 50x50 km:
 0.33%
 0.46%
 0.63%
 0.88%
 1.02%
 1.42%
 1.21%
 1.44%
 1.84%
 7.69%
 83.08%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
43° 55' 6.4" North, 4° 7' 9.3" West
43° 24' 35.3" North, 3° 24' 58.1" West
42° 53' 48.7" North, 2° 42' 46.8" West
Some cities around Laredo sort by population:
• Santander
		31.9 km =19.8 mi, 
281°
• Santurtzi
		32.3 km =20.1 mi, 
106°
• Castro-Urdiales
		16.1 km =10 mi, 
100°
• SantoƱa
		5.1 km =3.2 mi, 
318°
• Zierbena
		27.7 km =17.2 mi, 
103°
• Ortuella
		31.1 km =19.3 mi, 
110°
• Zalla
		30.1 km =18.7 mi, 
130°
• Colindres
		3.4 km =2.1 mi, 
244°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016