Mexico's 9,330 km (5,800 mi) coastline spans three distinct marine environments, each with characteristic port cities, tourist destinations, and economic profiles.
Baja California Peninsula: Tijuana (border metropolis), Ensenada (wine/port), San Felipe (Sea of Cortez fishing)
Sonora/Sinaloa: Puerto Peñasco (Rocky Point - Arizona's beach), Guaymas (major port), Mazatlán (historic port, resort)
Jalisco/Colima/Michoacán: Puerto Vallarta (tourism hub), Manzanillo (busiest Pacific port)
Guerrero/Oaxaca: Acapulco (original jet-set resort), Zihuatanejo/Ixtapa (dual resort)
Tamaulipas: Matamoros (border), Tampico/Ciudad Madero (oil/refining hub)
Veracruz: Tuxpan (oil), Veracruz (historic major port, cultural capital), Boca del Río (metro Veracruz), Alvarado (lagoon fishing), Coatzacoalcos (petrochemical), Minatitlán (refining)
Quintana Roo: Cancún (planned mega-resort, 30M+ visitors), Playa del Carmen (Riviera Maya hub), Cozumel (cruise/coral capital), Tulum (eco-chic, ruins)
Yucatán/Campeche (Caribbean-facing): Limited coastline
Quintana Roo South: Mahahual (cruise port), Chetumal (capital, Belize border)
Industrial Ports: Manzanillo, Veracruz, Coatzacoalcos, Tampico, Guaymas
Tourism Engines: Cancún, Los Cabos, Puerto Vallarta, Riviera Maya, Acapulco
Border Cities: Tijuana, Matamoros (maquiladoras, cross-border trade)
Fishing Centers: Ensenada, Mazatlán, Alvarado, Puerto Peñasco
Energy Hubs: Tampico-Madero, Coatzacoalcos-Minatitlán, Ciudad del Carmen (offshore)
Pacific: Arid north (Baja) → tropical south (Oaxaca). Gulf: Humid subtropical. Caribbean: Tropical wet/dry. Hurricane exposure: Gulf/Caribbean > Pacific.
Each coast writes its own Mexican story—industrial, touristic, traditional, or transformational.