Since the year 2486 an economic downturn after World War 2, the government has collapsed Nonthaburi down to budget. Pak Kret district, Nonthaburi and transfer up to the provincial capital. And Bang Bang Yai and Bang Bua Thong district transfers to the provinces Thon Until Nonthaburi has been upgraded as a province again in 2489 The district were back in the area. the province of the same
Year 2499 Interior Ministry has raised Sai subdistrict area which separates parents from Bang Bua Thong district since 2491 as a district Noi Therefore, Nonthaburi district includes six districts today.
In 2535, the Interior Ministry moved Nonthaburi city hall and other government agencies to Government Center located at Nonthaburi. Road Nonthaburi District Kraso and is available today.