Lopburi, or Lavapura as it then was, was under the rule of the rising Angkor regime and became one of the most important centers in the Chao Phraya Basin from then on.

[8] The earliest confirmed occurrence of the name Lavapura is on silver coins inscribed "lava" on the obverse and "pura" on the reverse in a Pallava-derived script of the seventh or eighth century; several such coins were recovered in 1966 from a hoard found in an ancient jar in U Thong.

[11] Control of Lopburi gave the Khmer Empire access to trade going through the Kra Isthmus.

[14] As explained by Sir Henry Yule, the editor of an English edition of Marco Polo's Travels: "Some geographers of the 16th century, following the old editions which carried the travellers south-east of Java to the land of Boeach (or Locac), introduced in their maps a continent in that situation".

The monsoon season runs from late April through October, with heavy rain and somewhat cooler temperatures during the day, although nights remain warm.

The main road through Lobpuri is Route 1 (Phahonyothin Road), which starts in Bangkok, and continues through Lopburi, Chai Nat, Nakhon Sawan, Kamphaeng Phet, Tak, Lampang, Chiang Rai, and the border with Burma at Mae Sai.

Lopburi is a station of the State Railway of Thailand's Northern Line, forming the end of Bangkok's suburban service.

The Khok Kathiam Air Force Base is 10 kilometres (6.2 mi) northeast of the town.

The monkeys can be aggressive, are not afraid of humans, and often steal whatever items or food they can find from unwary visitors.