The United States has extensive national infrastructure, but its quality and resilience vary by region, age, investment level, and exposure to climate and natural hazards.
## Electricity - A large interconnected power system serves most of the country through the Eastern, Western, and Texas grids, with additional isolated systems in Alaska, Hawaii, and some territories. - Generation comes from natural gas, nuclear, coal, hydroelectric, wind, solar, and other sources. - Reliability is generally high but can be affected by storms, wildfires, heat waves, and aging equipment.
## Water and sewer - Most urban and suburban residents are served by municipal water and wastewater systems. - Rural areas may rely on wells and septic systems. - Common challenges include aging pipes, lead service lines in some communities, drought stress, flood contamination risk, and treatment upgrades.
## Internet and broadband - Broadband access is widespread in urban and suburban areas, with cable, fiber, fixed wireless, and mobile options. - Rural and tribal areas often face weaker coverage, lower speeds, or higher costs. - Federal and state programs continue to target digital access gaps.
## Cellular networks - Nationwide mobile coverage is extensive, led by major private carriers. - Coverage can be limited in remote mountainous, desert, forested, or Arctic areas.
## Other infrastructure considerations - Dams, levees, ports, airports, pipelines, rail corridors, bridges, and public buildings are all major components of the national system. - Maintenance backlogs and modernization needs are recurring policy issues. - Climate resilience is increasingly important for coastal protection, wildfire mitigation, grid hardening, water management, and heat adaptation.
Infrastructure capacity is generally strong by global standards, but the gap between high-performing regions and underinvested systems remains a major national challenge.