Keihanshin in the context of "Kyoto Prefecture"

Osaka Prefecture (大阪府, Ōsaka-fu; pronounced [oː.sa.ka, oː.sa.kaꜜ.ɸɯ]) is a prefecture of Japan located in the Kansai region of Honshu. Osaka Prefecture has a population of 8,778,035 (as of 1 April 2022) and has a geographic area of 1,905 square kilometres (736 sq mi). Osaka Prefecture borders Hyōgo Prefecture to the northwest, Kyoto Prefecture to the north, Nara Prefecture to the southeast, and Wakayama Prefecture to the south.

Osaka is the capital and largest city of Osaka Prefecture, and the third-largest city in Japan, with other major cities including Sakai, Higashiōsaka, and Hirakata. Osaka Prefecture is located on the western coast of the Kii Peninsula, forming the western is open to Osaka Bay. Osaka Prefecture is the third-most-populous prefecture, but by geographic area the second-smallest; at 4,600 inhabitants per square kilometre (12,000/sq mi) it is the second-most densely populated, below only Tokyo. Osaka Prefecture is one of Japan's two "urban prefectures" using the designation fu (府) rather than the standard ken for prefectures, along with Kyoto Prefecture. Osaka Prefecture forms the center of the Keihanshin metropolitan area, the second-most-populated urban region in Japan after the Greater Tokyo area and one of the world's most productive regions by GDP.

Kyoto (/ki.ˈoʊ.toʊ/ or /ˈkjoʊ.toʊ/; Japanese: 京都, Kyōto [kʲoꜜː.to] ), officially Kyoto City (京都市, Kyōto-shi; [kʲoː.toꜜ.ɕi] ), is the capital city of Kyoto Prefecture in the Kansai region of Japan's largest and most populous island of Honshu. As of 2020, the city had a population of 1.46 million, making it the ninth-most populous city in Japan. More than half (56.8%) of Kyoto Prefecture's population resides in the city. The city is the cultural anchor of the substantially larger Greater Kyoto, a metropolitan statistical area (MSA) home to a census-estimated 3.8 million people. It is also part of the even larger Keihanshin metropolitan area, along with Osaka and Kobe.

Kyoto is one of the oldest municipalities in Japan, having been chosen in 794 as the new seat of Japan's imperial court by Emperor Kanmu. The original city, named Heian-kyō, was arranged in accordance with traditional Chinese feng shui following the model of the ancient Chinese capitals of Chang'an and Luoyang. The emperors of Japan ruled from Kyoto in the following eleven centuries until 1869. It was the scene of several key events of the Muromachi period, Sengoku period, and the Boshin War, such as the Ōnin War, the Honnō-ji Incident, the Kinmon incident, and the Battle of Toba–Fushimi. The capital was relocated from Kyoto to Tokyo after the Meiji Restoration. The modern municipality of Kyoto was established in 1889. The city was spared from large-scale destruction during World War II and, as a result, its prewar cultural heritage has mostly been preserved.

The Kansai region (関西地方, Kansai Chihō; [kaꜜɰ̃.sai, kaɰ̃.sai tɕiꜜ.hoː] ) a.k.a. the Kinki region (近畿地方, Kinki Chihō; Japanese pronunciation: [kʲiꜜŋ.ki, kʲiŋ.ki̥ tɕiꜜ.hoː]) lies in the southern-central region of Japan's main island Honshū. The region includes the prefectures of Nara, Wakayama, Kyoto, Osaka, Hyōgo and Shiga, often also Mie, sometimes Fukui, Tokushima and Tottori. The metropolitan region of Osaka, Kobe and Kyoto (Keihanshin region) is the second-most populated in Japan after the Greater Tokyo Area.

Osaka (Japanese: 大阪市, Hepburn: Ōsaka-shi; pronounced [oː.sa.kaꜜ.ɕi]; commonly just 大阪, Ōsaka [oː.sa.ka] ) is a designated city in the Kansai region of Honshu in Japan. It is the capital of and most populous city in Osaka Prefecture, and the third-most populous city in Japan, following the special wards of Tokyo and Yokohama. With an estimated population of 2,816,247 as of October 1, 2025 and a population density of about 12,505 people per square kilometer, it is the largest component of the Keihanshin Metropolitan Area, which is the second-largest metropolitan area in Japan and the 10th-largest urban area in the world with more than 19 million inhabitants.

Osaka was traditionally considered Japan's economic hub. By the Kofun period (300–538) it had developed into an important regional port, and in the 7th and 8th centuries, it served briefly as the imperial capital. Osaka continued to flourish during the Edo period (1603–1867) and became known as a center of Japanese culture. Following the Meiji Restoration, Osaka greatly expanded in size and underwent rapid industrialization. The construction boom accelerated population growth throughout the following decades, and by the 1900s, Osaka was the industrial hub in the Meiji and Taishō eras. Osaka made noted contributions to redevelopment, urban planning and zoning standards in the postwar period, and the city developed rapidly as one of the major financial centers in the Keihanshin Metropolitan Area.

Kobe (/ˈkoʊbeɪ/ KOH-bay; Japanese: 神戸, romanized: Kōbe, pronounced [koꜜː.be] ), officially Kobe City (神戸市, Kōbe-shi; [koː.beꜜ.ɕi]), is the capital city of Hyōgo Prefecture, Japan. With a population of around 1.5 million, Kobe is Japan's seventh-largest city and the third-largest port city after Tokyo and Yokohama. It is located in the Kansai region, which makes up the southern side of the main island of Honshū, on the north shore of Osaka Bay. It is part of the Keihanshin metropolitan area along with Osaka and Kyoto. The Kobe city centre is located about 35 km (22 mi) west of Osaka and 70 km (43 mi) southwest of Kyoto.

The earliest written records regarding the region come from the Nihon Shoki, which describes the founding of the Ikuta Shrine by Empress Jingū in AD 201. For most of its history, the area was never a single political entity, even during the Tokugawa period, when the port was controlled directly by the Tokugawa shogunate. Kobe did not exist in its current form until its founding in 1889. Its name comes from Kanbe (神戸; an archaic title for supporters of the city's Ikuta Shrine). Kobe became one of Japan's designated cities in 1956.

Fukuoka (福岡市, Fukuoka-shi; [ɸɯ̥.kɯꜜ.o.ka, -kɯ.o.kaꜜ.ɕi] ) is a designated city in the Kyushu region of Japan and the capital city of Fukuoka Prefecture. The city is built along the shores of Hakata Bay, and has been a center of international commerce since ancient times. The area has long been considered the gateway to the country, as it is the nearest point among Japan's main islands to the Asian mainland. Although humans have occupied the area since the Jomon period, some of the earliest settlers of the Yayoi period arrived in the Fukuoka area. The city rose to prominence during the Yamato period, and because of the cross-cultural exposure, and relatively great distance from the social and political centers of Kyoto, Osaka, and later, Edo (Tokyo), Fukuoka gained a distinctive local culture and dialect that has persisted to the present day.

Fukuoka is the most populous city on Kyūshū island, followed by Kitakyushu. It is the largest city and metropolitan area west of Keihanshin. The city was designated by government ordinance on April 1, 1972. Greater Fukuoka, with a population of 2.5 million people (2005 census), is part of the heavily industrialized Fukuoka–Kitakyushu zone.

Ikoma (生駒市, Ikoma-shi) is a city in the northwestern end of Nara Prefecture in the Kansai region of Japan. It was founded on November 1, 1971. As of September 1, 2023, the city has an estimated population of 117,259, with 51,478 households. It has a population density of 2,300 persons per km², and it has the third largest population in the prefecture. The total area is 53.18 km². The city is known as one of the most affluent suburbs of the Greater Osaka Metropolitan Area (Keihanshin), with a high rate of college graduates, professionals, and company directors amongst its residents. As a result, the city has developed as a satellite city of Osaka, with some 54% of its residents commuting across prefectural borders to Osaka. Kansai Science City is partially located in Ikoma, which is also home to the Nara Institute of Science and Technology. The city is also famous for chasen.