Located in the eastern border of Thailand, facing Cambodia at Aranyaprathet, Sa Kaeo is a popular province known as a trading centre.

In the past, Sa Kaeo was a major civilized community. Its long history had dated back since the Suwannaphum and Dvaravati Periods. The archeological sites of Khmer arts and stone inscriptions are the outstanding examples of this civilization.

Administratively, Sa Kaeo has been a district of Prachin Buri Province for a long period, and has officially been upgraded as a province since December 1, 1993.

Sa Kaeo is 245 kilometres, east of Bangkok, with the area about 7,195 square kilometres. Sa Kaeo is divided into 7 Amphoes (districts) and 2 King Amphoe (sub-districts): Amphoe Muang, Amphoe Watthana Nakhon, Amphoe Aranyaprathet, Amphoe Ta Phraya, Amphoe Khao Chakan, Amphoe Wang Nam Yen, Amphoe Khlong Hat, King Amphoe Khok Sung, and King Amphoe Wang Somboon.

Geographical Location
Sa Kaeo has its border facing Cambodia of approximately 165 kilometres. Generally, the area varies from plains to highlands. Highlands and mountains are in the north where Pang Sida National Park is located, while the south is covered with wavy plains and hills. Also, there are evergreen forests along the Chanthaburi mountain range. In the central, there are plains and hills, with Amphoe Watthana Nakhon as the highest area when compared to the other Amphoe Mueang in the west, and Amphoe Aranyaprathet in the east.

Boundary
North: Amphoe Khon Buri of Nakhon Ratchasima, and Amphoe Lahan Sai of Buri Ram;
South: Amphoe Soi Dao of Chanthaburi;
East: Cambodia; and
West: Amhoe Kabin Buri, Na Di of Prachin Buri, and Amphoe Sanam Chai Khet of Chachoengsao.

Distance from Amphoe Mueang to nearby districts :

Amphoe Khao Chakan 19 kms.
Amphoe Watthana Nakhon 38 kms.
Amphoe Wang Nam Yen 50 kms.
Amphoe Aranyaprathet 54 kms.
Amphoe Khlong Hat 65 kms.
Amphoe Ta Phraya 100 kms.

Distance from Sa Kaeo to nearby provinces :

Nakhon Ratchasima 184 kilometres
Prachin Buri 188 kilometres
Chanthaburi 258 kilometres
Chachoengsao 286 kilometres