Over the past decade, expansions under Medicaid and the State Children's Health Insurance Program (SCHIP) have brought a significant infusion of federal dollars into state and county health systems and have produced a variety of state-level programs. Yet, the expansion of public health insurance programs at the state level has had mixed success in providing coverage and improving access to care for children. (1) In some cases, states have fallen short of their enrollment projections because of barriers such as some children remaining ineligible for coverage (2) or families finding programs difficult to access. In response to these barriers, counties and local communities have increasingly emerged as hubs of innovation by using creative strategies to make insurance coverage and access to care available to children who do not meet the state eligibility criteria. This article describes the programs of two counties that have attempted to expand access to care for children: the Children's Health Initiative in Santa Clara County, California; and the Kids Get Care program in King County, Washington. The Santa Clara County Children's Health Initiative (CHI) adopted an insurance expansion model through its local initiative health plan, while the King County Kids Get Care (KGC) program is a service coordination model that directly links families to community-based medical homes. (3) The article begins by describing these two county-level programs and comparing the approach each has taken, then draws on these experiences to outline important elements for counties that want to create universal health care for children and families: committed leadership, health systems infrastructure, multiple financing sources, and community support. Two Models for Improving Children's Health Care Access in a Patchwork System The Santa Clara County and King County initiatives were selected for study in this article for a variety of reasons. First and foremost, they took differing approaches to improving children's access to care, and the programs are at least 12 months into their implementation. In addition, both counties are home to highly diverse populations and have publicly financed delivery systems with the capacity to support activities proposed under each initiative. Finally, each county also has a major city with a moderate to high concentration of uninsured children--the city of San Jose in Santa Clara County and the city of Seattle in King County. The counties are using two different approaches to move toward universal health care for children in otherwise patchwork health systems. The Santa Clara County CHI is a health insurance expansion with a focus on integrating funding and service delivery, while the King County KGC program is a services-based initiative that directly finks the child to a community-based, integrated continuum of care. This section provides a more detailed description of the two counties and their children's health initiatives. The Santa Clara County Children's Health Initiative Located at the southern end of the San Francisco Bay Area, Santa Clara County is home to 1,736,722 residents; about 462,000 of them are under age 18. (4) Approximately 925,000 of the county's residents live in San Jose, the biggest and most populous city in the county. (5) The county has also witnessed tremendous growth in its racial and ethnic populations. Latinos currently comprise about 25% of the county's population, Asians and Pacific Islanders 20%, and African Americans about 4%. Santa Clara County, home to the original Silicon Valley and the high-tech industry, has been described as having an hourglass-shaped economy. While Santa Clara is a relatively affluent county with a large number of families earning above the national median household income, (6) many low- and moderate-income families struggle with escalating housing costs and the basic costs of living, including the cost of health insurance. …