|Time zone||UTC -3|
|Dial plan||+598 4577 (+4 digits)|
The town is located on the coast of Río de la Platanear the stream Arroyo Conchillas, 50 kilometres (31 mi) northwest of Colonia del Sacramento, the capital city of the department, and 40 kilometres (25 mi) southeast of Carmelo.
The town is said to have been founded by the English on 24 October 1887. It soon became an important place for the exploitation of mineral resources. The English created a factory, founded two cemeteries, and established an Anglican Church. It is also believed that they kept their own currency for economic transactions, which was widely accepted in the rest of the country.
However, with the outbreak of the Second World War, Conchillas was sold to two Uruguayan entrepreneurs who introduced a series of modifications. Today, the English influence that resulted from the arrival of numerous European settlers is mainly evident in the architecture of Conchillas rather than in the way of life of its inhabitants.
On 21 December 1955, the status of the localities known as "Conchillas y Gil" was elevated to "Pueblo" (village) under the common name "Conchillas" by the Act of Nº Ley 12.254.
According to the 2011 census, Conchillas had a population of 756.
Source: Instituto Nacional de Estadística de Uruguay
* In the 2011 census the population of the Pueblo Gil censual area (309 inh.) was counted separately from Conchillas.
- "Censos 2011 Colonia (needs flash plugin)". ΙΝΕ. 2012. Retrieved 30 August 2012.
- History of Conchillas (Spanish)
- "Ley Nº 12.254". República Oriental del Uruguay, Poder Legislativo. 1955. Retrieved 3 September 2012.
- "Statistics of urban localities (1908–2004)" (PDF). INE. 2012. Retrieved 3 September 2012.