Saitama, Saitama in the context of "Cities designated by government ordinance of Japan"

Saitama Prefecture (埼玉県, Saitama-ken; Japanese pronunciation: [saꜜi.ta.ma, sai.ta.maꜜ.keɴ]) is a landlocked prefecture of Japan located in the Kantō region of Honshu. Saitama Prefecture has a population of 7,338,536 (January 1, 2020) and has a geographic area of 3,797 km (1,466 sq mi). Saitama Prefecture borders Tochigi Prefecture and Gunma Prefecture to the north, Nagano Prefecture to the west, Yamanashi Prefecture to the southwest, Tokyo to the south, Chiba Prefecture to the southeast, and Ibaraki Prefecture to the northeast.

Saitama is the capital and largest city of Saitama Prefecture, with other major cities including Kawaguchi, Kawagoe, and Tokorozawa.

The Tōhoku Main Line (Japanese: 東北本線, romanized: Tōhoku-honsen) is a 575.7-kilometre-long (357.7 mi) railway line in Japan operated by the East Japan Railway Company (JR East). The line starts from Tokyo Station in Chiyoda, Tokyo and passes through such cities as Saitama, Utsunomiya, Fukushima, and Sendai, before reaching the end of the line in Morioka. The line originally extended to Aomori, but was truncated upon the extension of the Tōhoku Shinkansen beyond Morioka, which mostly parallels the Tōhoku Main Line. A portion of the Tōhoku Main Line is also shared with the Keihin–Tōhoku Line (29.6 km (18.4 mi) between Tokyo Station and Ōmiya Station in Ōmiya-ku, Saitama) and the Saikyō Line (18 km (11 mi) between Akabane Station in the Kita ward of Tokyo and Ōmiya Station).

The 159.9-kilometre-long (99.4 mi) portion of the line between Tokyo Station and Kuroiso Station in Nasushiobara, Tochigi is referred to by JR East as the Utsunomiya Line, and the remaining section is referred to as the Tōhoku Line in regular service. Because of the difference in electrification south (1,500 V DC) and north (20 kV AC) of Kuroiso, there are no regularly scheduled passenger services that travel through that station.

Urawa (浦和市, Urawa-shi) was a city located in Saitama Prefecture, Japan.

On May 1, 2001, Urawa was merged with the cities of Ōmiya and Yono to create the city of Saitama.

Ōmiya (大宮市, Ōmiya-shi) was a city located in Saitama Prefecture, Japan.

On May 1, 2001, Ōmiya was merged with the cities of Urawa and Yono to create the city of Saitama. This merger aimed to streamline administrative functions and promote regional development. In 2003, Saitama City became a designated city, leading to the establishment of wards, including Ōmiya Ward, which encompasses much of the former Ōmiya-shi area.

Yono (与野市, Yono-shi) was a city located in Saitama Prefecture, Japan.

On May 1, 2001, Yono was merged with the cities of Urawa and Ōmiya to create the city of Saitama.

The Keihin–Tōhoku Line (Japanese: 京浜東北線, Hepburn: Keihin-tōhoku-sen) is a railway line in Japan which connects the cities of Saitama, Kawaguchi, Tokyo, Kawasaki, and Yokohama. It is part of the East Japan Railway Company (JR East) network. The line's name is derived from the characters for Tokyo (Japanese: 東京), Yokohama (Japanese: 横浜) and the Tōhoku Main Line (Japanese: 東北本線). The line runs parallel with the Tōkaidō Main Line between Yokohama and Tokyo and the Utsunomiya Line (part of the Tōhoku Main Line) except between Ueno and Akabane stations where the two lines are physically separate and thus alternate routes.

Most Keihin–Tōhoku Line trains have a through service onto the Negishi Line between Yokohama and Ōfuna stations. As a result, the entire service between Ōmiya and Ōfuna is typically referred to as the Keihin-Tōhoku–Negishi Line (Japanese: 京浜東北・根岸線) on system maps and in-train station guides. Keihin–Tōhoku–Negishi Line trains are recognizable by their light blue stripe (the line's color on maps is also light blue).

The Takasaki Line (Japanese: 高崎線, romanized: Takasaki-sen) is a Japanese railway line which connects Ōmiya Station in Saitama, Saitama Prefecture and Takasaki Station in Takasaki, Gunma Prefecture. It is owned and operated by the East Japan Railway Company (JR East).

All services on the line (excluding through Shonan-Shinjuku Line trains) run to/from Ueno Station in Tokyo via the Tōhoku Main Line. The line was extended to Tokyo Station via the Ueno-Tokyo Line that opened in March 2015.