| Official Name: | Aiguá |
| Settlement Type: | City & Municipality |
| Pushpin Map: | Uruguay |
| Subdivision Type: | Country |
| Subdivision Type1: | Department |
| Established Title: | Founded |
| Established Date: | 1892 |
| Founder: | Margarita Muniz |
| Population As Of: | 2011 Census |
| Population Total: | 2465 |
| Blank1 Name: | Climate |
| Blank1 Info: | Cfa |
| Timezone: | UTC -3 |
| Coordinates: | -34.2°N -54.75°W |
| Elevation M: | 112 |
| Postal Code Type: | Postal code |
| Postal Code: | 20500 |
| Area Code Type: | Dial plan |
| Area Code: | +598 4446 (+4 digits) |
Aiguá (pronounced as /es/) is a city of the Maldonado Department in Uruguay. Its name means running water in the Guaraní language. It is also the name of the municipality to which the city belongs. It includes the following zones: Aiguá, Sauce de Aiguá, Sarandí de Aiguá, Alférez, Valdivia, Salamanca, Coronilla, Rincón de Aparicio, Los Talas, Paso de los Talas.
The city is located in the northern sector of the department, at the intersection of Route 39 with Route 109, north of the capital city, Maldonado.
It is situated on the east bank of the stream Arroyo de Aiguá, one of the main tributaries of Cebollatí River.
The municipality of Aiguá has the highest point of Uruguay, the Cerro Catedral. This point is situated at an altitude of .
On 9 May 1906 it was declared a "Pueblo" (village) and its status was elevated to "Ciudad" (city) on 4 January 1956 by decree Ley No. 12.265.[1]
In 2011 Aiguá had a population of 2,465.[2] According to the Intendencia Departamental de Maldonado, the municipality of Aiguá has a population of 4,500.[3]
| Year | Population | |
|---|---|---|
| 1908 | 4,763 | |
| 1963 | 2,715 | |
| 1975 | 2,470 | |
| 1985 | 2,362 | |
| 1996 | 2,567 | |
| 2004 | 2,676 | |
| 2011 | 2,465 |