This chapter explores the Advanced Placement (AP) program in suburban school districts. Even as urban centers like Fort Worth and New York typify today's livelier venues for AP expansion, the program has deep roots in the prosperous suburbs that abut them. Along with elite private schools, upscale suburban high schools were among the program's earliest adopters, and they remain natural habitats for a nationally benchmarked, high-status venture that gives strong students a head start on the college education that they are almost certainly going to get and perhaps an extra advantage in gaining admission to the universities they aspire to. Yet they are also ripe for attention as they struggle with equity and growth issues of their own. The chapter then reviews two well-known yet very different suburban districts: Dublin City Schools in Ohio and Montgomery County Public Schools in Maryland. Both are celebrated as education successes in their states and both boast long and impressive AP track records. Both, however, face distinctive challenges as they seek to serve today's constituents. Their stories illustrate how AP is functioning in places that know it well yet continue to evolve with it.