Banqiao District (Chinese: 板橋區; pinyin: Bǎnqiáo Qū) Banciao, Panchiao or Pan-ch'iao is a district and the seat of New Taipei City, Taiwan. It has the third-highest population density in Taiwan, with over 24,000/km (62,000/sq mi). Until the creation of New Taipei City, Banqiao was an incorporated county-administered city and the former seat of Taipei County.
New Taipei City is a special municipality located in northern Taiwan. The city is home to an estimated population of 4,004,367 as of January 2023, making it the most populous city in Taiwan, and also the second largest special municipality by area, behind Kaohsiung. The top-level administrative divisions bordering New Taipei City are Keelung to the northeast, Yilan County to the southeast, and Taoyuan to the southwest, and it completely encloses the capital city of Taipei. Banqiao District is its municipal seat and biggest commercial area.
Before the establishment of Spanish and Dutch outposts in Tamsui in 1626, the area of present-day New Taipei City was mostly inhabited by Taiwanese indigenous peoples, mainly the Ketagalan people. From the late Qing era, the port of Tamsui was opened up to foreign traders as one of the treaty ports after the Qing dynasty of China signed the Treaty of Tientsin in June 1858. By the 1890s, the port of Tamsui accounted for 63 percent of the overall trade for entire Taiwan, port towns in the middle course of Tamsui River had also developed into bustling business and transportation centers. During the Japanese rule of Taiwan, the entire area of New Taipei City was organized as part of the Taihoku Prefecture. After the Republic of China took control of Taiwan in 1945, the present-day New Taipei City was designated on 7 January 1946 as Taipei County in Taiwan Province, which was constituted from the former Taihoku Prefecture, but not including present-day divisions of Taipei City, Keelung and Yilan County, the latter of which became detached from Taipei County on 10 October 1950. Its county status remained until 25 December 2010 when it was promoted to special municipal status and renamed as "New Taipei City".
Taoyuan District (Chinese: 桃園區; pinyin: Táoyuán Qū) is a district of Taoyuan City in northwestern Taiwan. Formerly a county-administered city also known as Taoyuan City (桃園市) before 2014, when the former Taoyuan County was elevated to a special municipality which is now known as Taoyuan City, which this district share with the same name. The municipal seat of Taoyuan City is situated within the district. It is the most populous district among the 13 districts of Taoyuan City, and the second most populous among the districts of Taiwan, with the most populous being Banqiao District in New Taipei City.