truestar inc. Population Statistics Every Year
Summary
This dataset is based on the “Population Estimates” of the Statistics Bureau of the Ministry of Internal Affairs and Communications, and contains population estimates by prefecture, gender, and age group (in 5-year increments) which is processed by truestar.
Features/Usages
The “Population Estimates” by the Statistics Bureau of the Ministry of Internal Affairs and Communications are conducted to grasp the population situation at the time between censuses. Based fron the population from the census, they estimate the population as of the first day of each month by obtaining other population-related data on movements such as births, deaths, immigration, and emigration as well as the results by age and by prefecture as of October 1st each year.
PODB has been providing these prefecture-level data for analysis since the fiscal year 2016. The prefecture codes assigned so that the data can be easily to link to other PODB data.
Note that this data is rounded to the nearest thousand, so there may be discrepancies between the published aggregate values, such as the national total and male/female total and those of the sum of 47 prefectures or male/female total. Therefore, please be careful when using the data that includes aggregate values.
Sample Data
Data Fields
| RESEARCH_YEAR | |
| PREF_CODE | |
| PREF_NAME | |
| PREF_NAME_EN | |
| PREF_CODE_NAME | |
| POPULATION_CLASSIFICATION | |
| SEX | |
| AGE_GROUP_5YEARS | |
| POPULATION |
References
The data is prepared by truestar, based on the follwing data.
The population estimate from the Ministry of Internal Affairs and Communications Statistics Bureau.
Special Notes
■Regarding aggregate values
Please note that this data is rounded to the nearest 1,000 people and is based on published aggregate values such as nationwide, male and female, and total population, as well as the total of 47 prefectures, male and female, and total population (including foreigners). Errors occur in aggregated values such as the sum of the total population and the Japanese population (excluding foreigners). Therefore, please note that the data is published including aggregated data.
How to avoid double counting data:
1) Population Classification: Please either use total population (including foreigners) or Japanese population (not including foreigners)
2) SEX: Please either use Male and female or male female total.
3) Age Group 5 years: Please either use the grand total or each age.
4) Pref Name: Please either use nationwide total or each prefecture.
Update / Revision History
2024/5/16 : Data for 2023 released.