From wikipedia
Japan is divided into 47 prefectures (Japanese: 都道府県, todōfuken, [todoːɸɯ̥ꜜkeɴ]), forming the country’s first level of jurisdiction and administrative division. They include 43 prefectures (県, ken, [keꜜɴ]) proper, two urban prefectures (府, fu, [ɸɯꜜ]; Osaka and Kyoto), one “circuit” or “territory” (道, dō, [doꜜː]; Hokkaido) and one “metropolis” (都, to, [toꜜ]; Tokyo). In 1868, the Meiji Fuhanken sanchisei administration created the first prefectures (urban -fu and rural -ken) to replace the urban and rural administrators (bugyō, daikan, etc.) in the parts of the country previously controlled directly by the shogunate and a few territories of rebels/shogunate loyalists who had not submitted to the new government such as Aizu/Wakamatsu. In 1871, all remaining feudal domains (han) were also transformed into prefectures, so that prefectures subdivided the whole country. In several waves of territorial consolidation, today’s 47 prefectures were formed by the turn of the century. In many instances, these are contiguous with the ancient ritsuryō provinces of Japan.[1]
Each prefecture’s chief executive is a directly elected governor (知事, chiji). Ordinances and budgets are enacted by a unicameral assembly (議会, gikai) whose members are elected for four-year terms.
Under a set of 1888–1890 laws on local government[2] until the 1920s, each prefecture (then only 3 -fu and 42 -ken; Hokkai-dō and Okinawa-ken were subject to different laws until the 20th century) was subdivided into cities (市, shi) and districts (郡, gun) and each district into towns (町, chō/machi) and villages (村, son/mura). Hokkaido has 14 subprefectures that act as General Subprefectural Bureaus (総合振興局, sōgō-shinkō-kyoku) and Subprefectural Bureaus (振興局, shinkō-kyoku) of the prefecture. Some other prefectures also have branch offices that carry out prefectural administrative functions outside the capital. Tokyo, the capital of Japan, is a merged city-prefecture; a metropolis, it has features of both cities and prefectures.
The data set is available in this link
library(leaflet)
## Warning: package 'leaflet' was built under R version 4.0.3
Japan <- read.csv("C:\\Users\\dsanchezc\\Downloads\\japan_prefecture.csv")
Japan
## prefecture_en Latitude Longitude
## 1 Hokkaido 43.06417 141.3469
## 2 Aomori 40.82444 140.7400
## 3 Iwate 39.70361 141.1525
## 4 Miyagi 38.26889 140.8719
## 5 Akita 39.71861 140.1025
## 6 Yamagata 38.24056 140.3633
## 7 Fukushima 37.75000 140.4678
## 8 Ibaraki 36.34139 140.4467
## 9 Tochigi 36.56583 139.8836
## 10 Gunma 36.39111 139.0608
## 11 Saitama 35.85694 139.6489
## 12 Chiba 35.60472 140.1233
## 13 Tokyo 35.68944 139.6917
## 14 Kanagawa 35.44778 139.6425
## 15 Niigata 37.90222 139.0236
## 16 Toyama 36.69528 137.2114
## 17 Ishikawa 36.59444 136.6256
## 18 Fukui 36.06528 136.2219
## 19 Yamanashi 35.66389 138.5683
## 20 Nagano 36.65139 138.1811
## 21 Gifu 35.39111 136.7222
## 22 Shizuoka 34.97694 138.3831
## 23 Aichi 35.18028 136.9067
## 24 Mie 34.73028 136.5086
## 25 Shiga 35.00444 135.8683
## 26 Kyoto 35.02139 135.7556
## 27 Osaka 34.68639 135.5200
## 28 Hyogo 34.69139 135.1831
## 29 Nara 34.68528 135.8328
## 30 Wakayama 34.22611 135.1675
## 31 Tottori 35.50361 134.2383
## 32 Shimane 35.47222 133.0506
## 33 Okayama 34.66167 133.9350
## 34 Hiroshima 34.39639 132.4594
## 35 Yamaguchi 34.18583 131.4714
## 36 Tokushima 34.06583 134.5594
## 37 Kagawa 34.34028 134.0433
## 38 Ehime 33.84167 132.7661
## 39 Kochi 33.55972 133.5311
## 40 Fukuoka 33.60639 130.4181
## 41 Saga 33.24944 130.2989
## 42 Nagasaki 32.74472 129.8736
## 43 Kumamoto 32.78972 130.7417
## 44 Oita 33.23806 131.6125
## 45 Miyazaki 31.91111 131.4239
## 46 Kagoshima 31.56028 130.5581
## 47 Okinawa 26.21250 127.6811
leaflet() %>% addTiles() %>%
addAwesomeMarkers(data=Japan, lat = ~Latitude,
lng = ~Longitude)