About Okayama
Okayama is a mid-sized city located in Japan, in the Okayama Prefecture region. According to the latest available data (2026), the population of Okayama is approximately 720,043 residents, making it the #20 most populous city in Japan.
Globally, Okayama ranks #2,578 among the world's most populated cities.
Okayama City Statistics
| City | Okayama |
| Country |  Japan |
| Population | 720,043 |
| Global Rank | #2,578 |
| Rank in Japan | #20 of 360 cities |
| City Category | mid-sized city |
| Region | Okayama Prefecture |
| Latitude | 34.6551 |
| Longitude | 133.9196 |
| Data Year | 2026 |
Population Comparison
To put Okayama's population of 720,043 into perspective:
- Okayama has over 720,000 residents.
Where is Okayama Located?
Okayama is located in Japan, in the Okayama Prefecture region, at coordinates 34.6551° latitude and 133.9196° longitude. Okayama sits in the subtropics, typically enjoying warm temperatures year-round.
Nearby Cities
Other Cities in Japan
Largest Cities in Japan
| # | City | Population |
|---|---|---|
| 2 | Yokohama | 3,757,630 |
| 3 | Nagoya | 2,326,844 |
| 6 | Sapporo | 1,959,313 |
| 7 | Fukuoka | 1,603,043 |
| 8 | Kawasaki | 1,539,522 |
Frequently Asked Questions
What is the population of Okayama?
The population of Okayama is approximately 720,043 residents according to the latest available data (2026).
Where is Okayama located?
Okayama is located in Japan at approximately 34.6551° latitude and 133.9196° longitude.
Is Okayama one of the largest cities in Japan?
With a population of 720,043, Okayama is one of the notable urban areas in Japan. It ranks #20 out of 360 cities in the country.
