About Koga
Koga is a city in Ibaraki, Japan with a population of 139,344. It is the 190th largest of the 1,216 cities of 15,000 or more listed in Japan, and the 4,089th largest worldwide. It lies 55 km from Tokyo.
Key Facts
Country
Region
Rank in region
#7of 53
Elevation
17 m
Approximate — modelled, not surveyed
Time zone
Asia/Tokyo
Coordinates
36.183, 139.717
Record updated
2024-12-04
Entry edited, not measured
City population, GeoNames. GeoNames publishes no year for its population figures, so “record updated” is when the entry was last edited — not the date the population was measured. Elevation is modelled from a digital elevation model rather than surveyed, so it is approximate.
Nearby Cities
All 1,216 in JapanClosest listed cities by great-circle distance from the city centre.