| Timezone | Japan Time |
| Area | 9,331.9 km² |
| Population | 1.1 million (More Details) |
|
| Male Population | 530,588 (48%) |
| Female Population | 575,664 (52%) |
| Median Age | 49.8 |
| Postal Areas | 990, 991, 992 (7 more) |
| Postal Codes | 1,941 |
| Area Codes | 23, 233, 234 (10 more) |
| Cities | 7 |
10 Postal Areas in Yamagata Prefecture
| Postal Area | City | Administrative Region | City Population |
|---|
| 990 | — | Yamagata Prefecture | — |
| 991 | — | Yamagata Prefecture | — |
| 992 | — | Yamagata Prefecture | — |
| 993 | — | Yamagata Prefecture | — |
| 994 | — | Yamagata Prefecture | — |
| 995 | — | Yamagata Prefecture | — |
| 996 | — | Yamagata Prefecture | — |
| 997 | — | Yamagata Prefecture | — |
| 998 | — | Yamagata Prefecture | — |
| 999 | — | Yamagata Prefecture | — |
Address Example
Yamagata Prefecture Demographic Information
| Population | 1.1 million |
| Population Density | 118.5 / km² |
| Male Population | 530,588 (48%) |
| Female Population | 575,664 (52%) |
| Median Age | 49.8 |
| Male Median Age | 47.6 |
| Female Median Age | 51.9 |
| Businesses in Yamagata Prefecture | 32,901 |
| Population (1975) | 1,335,642 |
| Population (2000) | 1,245,034 |
| Population change from 1975 to 2015 | -17.2% |
| Population change from 2000 to 2015 | -11.1% |
Cities in Yamagata Prefecture
