Mueang Samut Prakan district
|• Mueang district||190.56 km2 (73.58 sq mi)|
|• Mueang district||540,979|
|• Density||2,819.73/km2 (7,303.1/sq mi)|
|• City Municipality||51,495|
|Time zone||UTC+07:00 ( ICT)|
Mueang Samut Prakan district ( Thai: อำเภอเมืองสมุทรปราการ, pronounced [mɯ̄a̯ŋ sā.mùt prāː.kāːn] ⓘ) or colloquially as Paknam Samut Prakan ( Thai: ปากน้ำสมุทรปราการ) is the capital district ( amphoe mueang) of Samut Prakan province in central Thailand. The district has the highest population of all districts of Thailand.
|5.||Bang Pu Mai||บางปูใหม่||–||39,435|
|10.||Bang Mueang Mai||บางเมืองใหม่||–||51,980|
|12.||Thai Ban Mai||ท้ายบ้านใหม่||–||48,037|
|13.||Phraek Sa Mai||แพรกษาใหม่||7||48,508|
Missing numbers are tambons split off at the creation of Phra Samut Chedi district.
There is one city ( thesaban nakhon) in the district:
There are two towns ( thesaban mueang) in the district:
There are five subdistrict municipalities ( thesaban tambon) in the district:
There are four subdistrict administrative organizations (SAO) in the district:
Interhides Public Company (IHL)  operates nine tanning factories in Bang Pu Mai and is building a tenth factory there to be operational by 2020. IHL produce finished leathers for international footwear, automotive, and furniture companies. 
The district's coastline has seen severe erosion since the 1990s.  Coastal mangrove forests were destroyed and replaced with shrimp farms. Three to five metres of shoreline has been submerged every year since then, resulting in the loss of 4,000 rai of land to the sea. 
Thailand lost almost one third of its coastal mangrove forests between 1961 and 2000. According to Thailand's Department of Marine and Coastal Resources, a quarter of the country's shores—about 700 kilometres (500 miles)—are eroding, some "severely". 
Samut Prakan is served by the southern end of the Sukhumvit Line on the BTS Skytrain (from Samrong to Kheha stations). The major thoroughfare in Samut Prakan is Sukhumvit Road, which links the city to Central Bangkok all the way towards the Cambodian border in Trat.
Samut Prakan Hospital, the main hospital of the province is located in the district.