Acuña is a one of the 38 municipalities of Coahuila

Municipalities of Coahuila

The Mexican state of Coahuila is divided into38 municipalities ....

, in north-eastern Mexico

Mexico

The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

. The municipal seat lies at Ciudad Acuña

Ciudad Acuña

Ciudad Acuña, also known simply as Acuña, is a city located in the Mexican state of Coahuila, at and a mean height above sea level of 271 meters...

, 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 (Rio Grande), adjacent to the U.S. state of Texas

Texas

Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...

.

As of 2010, the municipality had a total population of 136,755 inhabitants.

Towns and villages

The largest localities (cities, towns, and villages) are:

Name	2010 Census Population
Ciudad Acuña Ciudad Acuña Ciudad Acuña, also known simply as Acuña, is a city located in the Mexican state of Coahuila, at and a mean height above sea level of 271 meters...	134,233
Las Cuevas	399
Calles	373
Las Torres	274
Balcones	263
Total Municipality	136,755

Adjacent municipalities and counties

• Jiménez Municipality - southeast
• Zaragoza Municipality - south
• Múzquiz Municipality - south
• Ocampo Municipality - southwest
• Brewster County, Texas
  Brewster County, Texas
  Brewster County is a county located in western part of the US state of Texas, along the border with Mexico. It is one of the nine counties that comprise the Trans-Pecos region of West Texas. As of the 2000 census, the population is 8,866. In 2009, the population was estimated to be 9,481. Its...
  
   - northwest
• Terrell County, Texas
  Terrell County, Texas
  Terrell County is a county located in the U.S. state of Texas. It is one of the nine counties that comprise the Trans-Pecos region of West Texas. In 2000, its population was 1,081. Its county seat is Sanderson. The county was named for Alexander W. Terrell, a Texas state senator...
  
   - north
• Val Verde County, Texas
  Val Verde County, Texas
  Val Verde County is a county located on the Edwards Plateau in the U.S. state of Texas. In 2008, estimated population was 55,000. Its county seat is Del Rio. In 1936, Val Verde County received Recorded Texas Historic Landmark number 5625 to commemorate its founding.Val Verde, which means "green...
  
  - northeast