Samut Songkhram is at the mouth of the Mae Klong River to the Bay of Bangkok (upper Gulf of Thailand).

The sandbar Don Hoi Lot at the mouth of the river is famous for its endemic shell population of Solen regularis.

Additionally, Samut Songkhram is also home to the oldest Chinese joss house and almshouse in Thailand, which is over 215 years old.

[9] Samut Songkhram or Mae Klong or Suan Nok (outside garden) was a part of Mueang Ratchaburi in the past.

The old name of Mae Klong is Bang Chang which was centered at Tambon Amphawa, Samut Songkhram (from the district at present).

During the transition from the Ayutthaya to the Thon Buri periods, it was separated from Ratchaburi and named Mueang Mae Klong.

Samut Songkhram was historically important during the establishment of Thon Buri as the kingdom’s capital by King Taksin the Great.

It is assumed it occurred in 1752 to 1756 because the name of the province first appeared in the evidence from the first Thai enacted law: Later, a decree was found,issued from the reign of King Borom Urn Baromgoate in 1756 and was identified as ordered to The Lord Rattanathibet, the Grand marshal of the Court.

[12] As of December 2023 there are: one Samut Songkhram provincial administrative organization - PAO (ongkan borihan suan changwat - o bo toh) and nine municipal (thesaban) areas in the province.

[12] The non-municipal areas are administered by 26 subdistrict administrative organizations (SAO) (ongkan borihan suan tambon).

[28] Because the area of the province borders the Bay of Bangkok which is rich in plankton, they are regarded as the staple food of this fish species.

[28] And exclusive Khao tom sam kasat (ข้าวต้มสามกษัตริย์, lit: "three kings porridge"), porridge with the main ingredients, Pla thu, prawn and fresh squid, recount that this menu has its origin from the King Rama V visiting the people at Mae Klong.