| # | City | Bortle (est.) | Brightness | 2 classes darker |
|---|---|---|---|---|
| 1 | Guayaquil | 8–9 | 254 | ~25 km SSW |
| 2 | Quito | 8–9 | 249 | ~25 km WNW |
| 3 | Cuenca | 8–9 | 255 | ~25 km NW |
| 4 | Ambato | 8–9 | 248 | ~25 km E |
| 5 | Latacunga | 7–8 | 251 | ~25 km E |
| 6 | Riobamba | 7–8 | 252 | ~25 km ENE |
| 7 | Ibarra | 7–8 | 253 | ~25 km SE |
| 8 | Portoviejo | 7–8 | 255 | ~25 km ESE |
| 9 | Manta | 7–8 | 239 | ~25 km NNW |
| 10 | Machala | 7–8 | 255 | ~25 km WNW |
| 11 | Esmeraldas | 7–8 | 237 | ~25 km NNE |
| 12 | Santo Domingo de los Colorados | 7–8 | 255 | ~25 km SE |
| 13 | Loja | 7–8 | 254 | ~25 km ENE |
| 14 | Quevedo | 7–8 | 255 | ~25 km NNW |
Brightness is the NASA VIIRS Black Marble 2016 value at the city centre on a 0–255 scale; 255 is saturated. Cities are ordered by estimated sky brightness, which also counts the light within 30 km.