As of October 2024, the United States had nearly ******* Japanese citizens, making it the country with the highest number of Japanese residents outside of Japan itself. The United States counted around **** times as many Japanese citizens as second-placed *********.  Japanese immigrants in the United States Lately, there has been an increase in the migration of Japanese individuals, especially to the United States, which has *********** immigrant population worldwide. This surge in Japanese migration to the United States can largely be attributed to the substantial presence of Japanese companies with offices in the country, which ranks among the highest globally. Consequently, many Japanese nationals choose to relocate to the United States in pursuit of employment opportunities offered by these companies.  Status of immigrants in Japan The total number of foreign residents in Japan has been rising lately, with ***** having the highest number of foreign nationals registered among 47 prefectures. The main nationality of foreign residents living in Japan are people from the ********************************************* The increasing number of foreign nationals working in Japan is indicative of the growing interest in job opportunities within the country.

As of October 2024, Los Angeles had the highest number of Japanese residents among cities outside Japan, with approximately ****** residents. In the same year, the United States remained by far the country with the largest Japanese population outside Japan.

As of October 2024, approximately ****** Japanese residents lived in Los Angeles, continuing the downward trend. Los Angeles had the largest Japanese population of any city outside Japan. In the same year, the United States was by far the country with the highest number of Japanese residents.

This dataset summarizes the inter-prefecture migration of Japanese citizens only in 2024, excluding foreign nationals from the original data collected by the Statistics Bureau of Japan. It includes migration counts between each of the 47 prefectures (ken), enabling analysis of top migration flows for any given prefecture in terms of both in-migrants and out-migrants.

• In-migrants: Individuals who moved into a new prefecture.
• Out-migrants: Individuals who moved out of a prefecture to a new location.

Although the original data contains information on major cities and migrant demographics such as gender, this dataset includes data only for the 47 prefectures. Therefore, city-level data is excluded from geographic visualisations like maps.

The dataset was created to study and visualise migration patterns within Japan, particularly focusing on rural depopulation and the emergence of “ghost villages.”

Abstract

This study is an experiment designed to compare the performance of three methodologies for sampling households with migrants:

• a stratified sample using the census to sample census tracts randomly, in which each household is then listed and screened to determine whether or not it has a migrant, with the full length questionnaire then being applied in a second phase only to the households of interest;
• a snowball survey in which households are asked to provide referrals to other households with migrant members;
• an intercept point survey (or time-and-space sampling survey), in which individuals are sampled during set time periods at a prespecified set of locations where households in the target group are likely to congregate.

Researchers from the World Bank applied these methods in the context of a survey of Brazilians of Japanese descent (Nikkei), requested by the World Bank. There are approximately 1.2-1.9 million Nikkei among Brazil’s 170 million population.

The survey was designed to provide detail on the characteristics of households with and without migrants, to estimate the proportion of households receiving remittances and with migrants in Japan, and to examine the consequences of migration and remittances on the sending households.

The same questionnaire was used for the stratified random sample and snowball surveys, and a shorter version of the questionnaire was used for the intercept surveys. Researchers can directly compare answers to the same questions across survey methodologies and determine the extent to which the intercept and snowball surveys can give similar results to the more expensive census-based survey, and test for the presence of biases.

Geographic coverage

Sao Paulo and Parana states

Analysis unit

Japanese-Brazilian (Nikkei) households and individuals

The 2000 Brazilian Census was used to classify households as Nikkei or non-Nikkei. The Brazilian Census does not ask ethnicity but instead asks questions on race, country of birth and whether an individual has lived elsewhere in the last 10 years. On the basis of these questions, a household is classified as (potentially) Nikkei if it has any of the following: 1) a member born in Japan; 2) a member who is of yellow race and who has lived in Japan in the last 10 years; 3) a member who is of yellow race, who was not born in a country other than Japan (predominantly Korea, Taiwan or China) and who did not live in a foreign country other than Japan in the last 10 years.

Kind of data

Sample survey data [ssd]

Sampling procedure

1) Stratified random sample survey

Two states with the largest Nikkei population - Sao Paulo and Parana - were chosen for the study.

The sampling process consisted of three stages. First, a stratified random sample of 75 census tracts was selected based on 2000 Brazilian census. Second, interviewers carried out a door-to-door listing within each census tract to determine which households had a Nikkei member. Third, the survey questionnaire was then administered to households that were identified as Nikkei. A door-to-door listing exercise of the 75 census tracts was then carried out between October 13th, 2006, and October 29th, 2006. The fieldwork began on November 19, 2006, and all dwellings were visited at least once by December 22, 2006. The second wave of surveying took place from January 18th, 2007, to February 2nd, 2007, which was intended to increase the number of households responding.

2) Intercept survey

The intercept survey was designed to carry out interviews at a range of locations that were frequented by the Nikkei population. It was originally designed to be done in Sao Paulo city only, but a second intercept point survey was later carried out in Curitiba, Parana. Intercept survey took place between December 9th, 2006, and December 20th, 2006, whereas the Curitiba intercept survey took place between March 3rd and March 12th, 2007.

Consultations with Nikkei community organizations, local researchers and officers of the bank Sudameris, which provides remittance services to this community, were used to select a broad range of locations. Interviewers were assigned to visit each location during prespecified blocks of time. Two fieldworkers were assigned to each location. One fieldworker carried out the interviews, while the other carried out a count of the number of people with Nikkei appearance who appeared to be 18 years old or older who passed by each location. For the fixed places, this count was made throughout the prespecified time block. For example, between 2.30 p.m. and 3.30 p.m. at the sports club, the interviewer counted 57 adult Nikkeis. Refusal rates were carefully recorded, along with the sex and approximate age of the person refusing.

In all, 516 intercept interviews were collected.

3) Snowball sampling survey

The questionnaire that was used was the same as used for the stratified random sample. The plan was to begin with a seed list of 75 households, and to aim to reach a total sample of 300 households through referrals from the initial seed households. Each household surveyed was asked to supply the names of three contacts: (a) a Nikkei household with a member currently in Japan; (b) a Nikkei household with a member who has returned from Japan; (c) a Nikkei household without members in Japan and where individuals had not returned from Japan.

The snowball survey took place from December 5th to 20th, 2006. The second phase of the snowballing survey ran from January 22nd, 2007, to March 23rd, 2007. More associations were contacted to provide additional seed names (69 more names were obtained) and, as with the stratified sample, an adaptation of the intercept survey was used when individuals refused to answer the longer questionnaire. A decision was made to continue the snowball process until a target sample size of 100 had been achieved.

The final sample consists of 60 households who came as seed households from Japanese associations, and 40 households who were chain referrals. The longest chain achieved was three links.

Mode of data collection

Face-to-face [f2f]

Research instrument

1) Stratified sampling and snowball survey questionnaire

This questionnaire has 36 pages with over 1,000 variables, taking over an hour to complete.

If subjects refused to answer the questionnaire, interviewers would leave a much shorter version of the questionnaire to be completed by the household by themselves, and later picked up. This shorter questionnaire was the same as used in the intercept point survey, taking seven minutes on average. The intention with the shorter survey was to provide some data on households that would not answer the full survey because of time constraints, or because respondents were reluctant to have an interviewer in their house.

2) Intercept questionnaire

The questionnaire is four pages in length, consisting of 62 questions and taking a mean time of seven minutes to answer. Respondents had to be 18 years old or older to be interviewed.

Response rate

1) Stratified random sampling 403 out of the 710 Nikkei households were surveyed, an interview rate of 57%. The refusal rate was 25%, whereas the remaining households were either absent on three attempts or were not surveyed because building managers refused permission to enter the apartment buildings. Refusal rates were higher in Sao Paulo than in Parana, reflecting greater concerns about crime and a busier urban environment.

2) Intercept Interviews 516 intercept interviews were collected, along with 325 refusals. The average refusal rate is 39%, with location-specific refusal rates ranging from only 3% at the food festival to almost 66% at one of the two grocery stores.

Japan stands out as one of the countries with the highest population longevity, from a global perspective 🌏, having the highest estimated life expectancy at birth of 84.26 years. The longevity of Japanese women is notable, ranking first worldwide with a life expectancy of 86.94 years, while Japanese men rank second with 81.49 years (World Health Organization, 2020). Japan's high life expectancy can be attributed to various factors. Technological progress, especially in the medical field, along with the country's accelerated economic development, in recent decades, have inevitably led to an increase in the average life expectancy of the population.

The dataset contains information about life expectancy and economic&social variables for Japan's prefectures as of 2020. - Life expectancy data source: Ministry of Health, Labour and Welfare, Japan - Independent variables data source: Japanese Government Statistics - Geospatial prefecture data: GitHub

In 2024, approximately **** million residents of foreign nationality were registered in Japan, making up below ***** percent of the population. The total number of foreign residents increased by about ****million in the last decade. Development of immigration to Japan Except for a large minority of people of Korean descent who have lived in Japan since the first half of the twentieth century, immigration of people from other countries did not become an issue in Japan until the 1980s when the economy required more labor. A revision of the Immigration Control and Refugee Recognition Act in 1990 allowed people of Japanese descent, so-called "nikkeijin," to enter the country and work without restrictions. The nikkeijin who entered Japan in the years that followed mainly came from Brazil and other South American countries. Chinese immigration increased as well throughout the 1990s and early 2000s. A breakdown of foreign residents by major nationalities shows that ********immigrants overtook ******* as the largest minority group in 2007. People from ******* were the strongest growing minority in the 2010s. Recent immigration reform Due to its demographic changes, Japan has a relatively low unemployment rate. As a consequence, a large share of companies report labor shortages. The temporary immigration of foreign workers is considered one of the possible solutions to this problem, next to the increasing labor market participation of women and the elderly. In 2019, the Japanese government enacted a major immigration reform. The reform allowed lower- and semi-skilled workers to enter the country and work in one of 14 different industries suffering from a lack of labor. The vast majority of participants are not allowed to bring their family members and are expected to return to their respective countries after their terms in Japan end.

In the past decade, Japan’s degree of urbanization has leveled off at around 92.04 percent. This means that less than 10 percent of Japan’s population of 126 million inhabitants do not live in an urban setting. Japan is well above the degree of urbanization worldwide, which is 55 percent. Japan is also known for its high population density: In 2017, it amounted to an eye-watering 347.78 inhabitants per square kilometer - however, it is not even among the top twenty countries with the highest population density worldwide. That ranking is lead by Monaco, followed by China, and Singapore. Japan’s aging population The main demographic challenge that Japan currently faces is an aging population, as the number of inhabitants over 65 years old is an increasing percentage of the population. As of 2018, Japan is the country with the largest percentage of total population over 65 years, and life expectancy at birth there is about 84 years. Simultaneously, the birth rate in Japan is declining, resulting in negative population growth in recent years. One method Japan is using to address these demographic shifts is by investing in automated work processes; it's one of the top countries interested in collaborative robots.

In a survey conducted in February 2023, approximately 67 percent of heterosexual respondents reported being legally married. At the same time, 36 percent of homosexual and bisexual respondents were in a registered marriage.  The history of LGBTQ+ in Japan  Japan has a rich queer history. Homosexual relationships in historic Japan were for most parts of a strictly hierarchical, pederastic nature and limited to the all-male realms of monasteries and the samurai class. With the growing influence and wealth of common people in 17th century Japan, the depiction and practice of homosexuality and gender fluidity became a widely popular topic in urban culture. This changed with the arrival of Western ideology. Queerness was portrayed as either pathological or caricatural until well into the second half of the 20th century. Nowadays, Japan’s stance on LGBTQ+ rights is fairly progressive compared to other Asian regions. Due to better access to information and education on the topic, familiarity with the term LGBTQ+ and its meaning is relatively high among the Japanese population. Yet, Japan is still a far cry away from an equal society, with many LGBTQ+ individuals concerned about coming out.  Legalization of same-sex marriage in Japan Japan is the only G7 nation not fully recognizing same-sex marriages. However, a court ruling in March 2021 declared it unconstitutional to bar same-sex couples from getting legally married. While it will certainly take time until an apt law to allow same-sex marriage will be passed, having the perspective to gain equal legal rights to heterosexual couples is a major symbolic victory for the LGBTQ+ community in socially conservative Japan. In past years, some municipalities started to issue partnership certificates, but their benefits are limited, not allowing individuals to inherit their partner’s assets or granting parental rights over their children. In light of the postponed Olympic Games in Tokyo, human rights organizations and LGBTQ+ activists are pushing for an Equality Act. This comes at a similar time as the ongoing gender equality discussion, which was sparked by former Tokyo Olympics President Yoshiro Mori’s sexist remark on female participation in meetings, leading to an international media outcry on the status of women in Japanese society.

More than ** percent of people in Japan owned a smartphone in 2024. The smartphone penetration rate has increased significantly compared to the mid-2010s. Apple’s triumph in Japan Based on shipment volume, Apple holds the largest market share within the Japanese smartphone market. The first iPhone entered the Japanese market in 2008. SoftBank played a pivotal role in Apple’s triumphant journey, marked by the acquisition of exclusive rights for three years and a well-executed strategy based on competitive pricing and aggressive marketing. Consequently, the iPhone emerged as one of the earliest widely adopted smartphones in Japan. Since then, iPhones have consistently held a distinct appeal among Japanese consumers and regularly dominate the ranking of the best-selling smartphone models in Japan. 5G networks in Japan One of the major developments for the Japanese mobile communications market in recent years was the introduction of fifth-generation (5G) networks in 2020. While Japan's major mobile carriers commenced offering commercial 5G services from March 2020 onward, Rakuten Mobile joined as the country's fourth major carrier and started rolling out its 5G network in September 2020. The implementation of 5G technologies ushered in substantially higher speeds, an increased capacity, and a lower latency, particularly benefiting activities such as online streaming and mobile gaming. A recent survey underscored that smartphones are the primary devices for accessing the internet in Japan, further emphasizing the pivotal role of these devices in shaping the country's digital landscape.