Hundreds of families in Cabo San Lucas now receive municipal tap water as rarely as once a month, forcing them to buy private truck deliveries that cost up to 3,000 pesos ($173 USD) per load. Residents in neighborhoods like La Joya, Caribe Bajo, and Arcos del Sol describe water access as a crisis that has turned private deliveries into a permanent household expense. The Cabo San Lucas water shortage is hitting hardest during the region’s hottest season, with no clear municipal fix on the horizon.
Uriel Monroy, a resident of La Joya, said his apartment building receives water roughly once a month. He pays both a municipal water bill and a maintenance fee that partially covers water costs. “We end up paying twice,” Monroy said. Catalina Pérez of Caribe Bajo said her family of five spends about 3,000 pesos each month on two truck deliveries at 1,500 pesos ($85 USD) each. Felipe Reyes, in Arcos del Sol, said he invested in multiple storage tanks because municipal water arrives only every 20 to 45 days.
OOMSAPAS Has Struggled to Keep Pace With Los Cabos Growth
OOMSAPAS, the Los Cabos municipal water utility (Organismo Operador Municipal del Sistema de Agua Potable, Alcantarillado y Saneamiento), has faced chronic capacity problems for years. The utility serves a municipality whose permanent population has roughly doubled since 2005, growing from about 165,000 to over 350,000 residents. That figure swells by tens of thousands more during peak tourist season from November through April.
Los Cabos has also seen explosive hotel and resort construction. Between 2018 and 2024, the municipality approved permits for thousands of new hotel rooms and residential units across developments stretching from the Tourist Corridor to the eastern cape. Each resort with a golf course, swimming pool complex, or landscaped grounds draws heavily on the same aquifer system that supplies residential neighborhoods. CONAGUA, Mexico’s national water commission, has classified several aquifers in Baja California Sur as overexploited. The state sits in one of Mexico’s driest climate zones, receiving an average of roughly 180 millimeters of rain per year.
OOMSAPAS operates a desalination plant in Cabo San Lucas that came online in phases starting around 2006. The plant was designed to supplement aquifer extraction, but its output has not kept up with demand. Expansion plans have been discussed repeatedly by state and municipal officials, yet new capacity has lagged behind the pace of development approvals. Critics inside and outside government have pointed to this gap as a policy failure rather than a natural scarcity problem.
The distinction matters. Water trucks operate throughout Los Cabos every day, distributing water purchased from private wells and other sources. Residents and local observers argue that water exists in the system. The failure is in municipal distribution infrastructure: aging pipes, insufficient pumping capacity, and a network that was never built to serve the city’s current footprint.
Monthly Water Costs Can Rival a Week’s Wages in Los Cabos
The financial burden is severe for working families. Mexico’s minimum wage in 2025 stands at 278.80 pesos per day, or roughly 6,970 pesos ($400 USD) per month for a six-day workweek. A family spending 3,000 pesos monthly on water truck deliveries is putting over 43% of a minimum-wage income toward water alone. That figure does not include the municipal water bill, which residents say they continue to pay despite receiving little or no service.
Alejandra Monroy, another La Joya resident, said some truck deliveries now cost more than 2,000 pesos ($115 USD) per load. “We pay the bill even though we don’t have consistent service, and on top of that we still have to pay for water deliveries,” she said. Storage infrastructure adds to the cost. A 5,000-liter polyethylene water tank, a common household purchase in Cabo San Lucas colonias, sells for between 4,000 and 7,000 pesos ($230 to $400 USD). Many families own two or three.
Expat residents in mixed and working-class neighborhoods face the same truck delivery cycle. Some foreign homeowners in gated communities without independent water systems report scheduling deliveries twice a month. Luxury resorts and high-end developments with their own wells, desalination units, or direct supply agreements with OOMSAPAS generally operate without interruption.
Baja California Sur ranks among the lowest Mexican states for reliable access to piped drinking water, according to federal census data. The state also scores poorly on garbage collection reliability, pointing to broader municipal service gaps across the peninsula’s southern tip.
The Los Cabos municipal government has not announced a specific timeline or budget for expanding OOMSAPAS distribution capacity. Summer temperatures in Cabo San Lucas regularly exceed 38°C (100°F) from June through September, a period when household water consumption peaks. Residents across multiple colonias say the situation grows worse each year as new construction continues without matching infrastructure investment. The story was first reported by a local English-language outlet based in Los Cabos.