Acuña Municipality
Acuña is one of the 38 municipalities of Coahuila, in north-eastern Mexico. The municipal seat lies at Ciudad Acuña, which contained over 98% of the municipality's population in 2010. The municipality covers an area of 11,487.7 km² and is located on the international border between Mexico and the USA, here formed by the Río Bravo del Norte, adjacent to the U.S. state of Texas.
In 2015, the municipality had a total population of 181,426 inhabitants. Acuña is currently the fastest growing city in Mexico.Towns and villages
The largest localities are:
| Name | 2010 Census Population |
| Ciudad Acuña | 134,233 |
| Las Cuevas | 399 |
| Calles | 373 |
| Las Torres | 274 |
| Balcones | 263 |
| Total Municipality | 136,755 |
