This white paper discusses targeted media planning to reach American Catholics. It provides data on Catholic populations along the eastern seaboard. The highest concentrations are in Connecticut/Rhode Island at 43% and New Jersey at 42%. The DC metro area has only 18% Catholics. Market snapshots of Providence, RI, the DC metro region, and New Jersey are presented, including demographic data. The paper argues that understanding local Catholic percentages and demographics allows for more effective media targeting.