Map of Piedras Negras, Mexico

Piedras Negras is a city in Coahuila, Mexico, with a population of about 150,178. It lies at 28.7001°N, 100.5235°W. Piedras Negras is about 1,041 km (647 mi) north of Mexico City, the capital. The nearest city on our map is Ciudad Acuña, 81 km to the northwest.

Piedras Negras at a glance

Where is Piedras Negras?

• The 5th largest city in Coahuila on this site.
• Located in the Northern and Western hemispheres.
• Daylight ranges from about 10 h 19 min on the shortest day to 13 h 58 min on the longest day (around 21 December and 21 June).

Cities near Piedras Negras

• Ciudad Acuña — 81 km northwest
• Del Rio — 82 km northwest, United States
• Nueva Rosita — 109 km southwest
• Sabinas — 110 km southwest
• Ciudad Melchor Múzquiz — 133 km southwest
• Laredo — 166 km southeast, United States
• Nuevo Laredo — 168 km southeast
• San Antonio — 213 km northeast, United States
• Frontera — 217 km southwest
• Monclova — 218 km southwest

Largest cities in Coahuila

• Torreón — 735,340
• Saltillo — 709,671
• Ciudad Acuña — 216,099
• Monclova — 215,271
• Frontera — 69,462
• Ramos Arizpe — 66,554
• Sabinas — 54,905
• Matamoros — 52,233
• San Pedro — 48,746
• Nueva Rosita — 38,158

Largest cities in Mexico

• Mexico City — 12,294,193
• Tijuana — 1,922,523
• Iztapalapa — 1,835,486
• Puebla — 1,692,181
• Ecatepec de Morelos — 1,645,352
• Santiago de Querétaro — 1,594,212
• León de los Aldama — 1,579,803
• Ciudad Juárez — 1,512,450
• Zapopan — 1,476,491
• Guadalajara — 1,385,629

Map of Mexico and all its cities →

Sources: place names, coordinates, populations and time zones from GeoNames (CC BY 4.0, data retrieved October 2026). Population figures are the latest values recorded in GeoNames; depending on the country they refer to the city proper, a municipality or a wider urban area, so they can differ from census or metro-area figures. Map © OpenStreetMap contributors.