Mueang Nakhon Sawan is the capital district of Nakhon Sawan Province, in northern Thailand.GeographyNeighboring districts are Banphot Phisai, Kao Liao, Chum Saeng, Tha Tako, Phayuha Khiri, Krok Phra, Lat Yao.The main rivers of the district are the Nan and Ping, which meet in the town of Nakhon Sawan to form the Chao Phraya. In the eastern part of the district is the Bueng Boraphet swamp, the most important wetland of the whole province.