The National Scorecard on U.S. Health System Performance, 2011, updates a series of comprehensive assessments of U.S. population health and health care quality, access, efficiency, and equity. It finds substantial improvement on quality-of-care indicators that have been the focus of public reporting and collaborative initiatives. However, U.S. health system performance continues to fall far short of what is attainable, especially given the enormity of public and private resources devoted nationally to health. Across 42 performance indicators, the U.S. achieves a total score of 64 out of a possible 100, when comparing national rates with domestic and international benchmarks. Overall, the U.S. failed to improve relative to these benchmarks, which in many cases rose. Costs were up sharply, access to care deteriorated, health system efficiency remained low, disparities persisted, and health outcomes failed to keep pace with benchmarks. The Affordable Care Act targets many of the gaps identified by the Scorecard.