At a time when many Protestant denominations are concentrated in specific regions, the Presbyterian Church in America is one of the few truly national denominations.
We have roots in an old Southern Presbyterian denomination, and thus have a large presence in Trump country and throughout the Bible Belt. But in the 1980s, we merged with a smaller denomination of northern and Great Lakes churches called the Reformed Presbyterian Church Evangelical Synod. More recently, Tim Keller has inspired young church planters to move to urban hubs like New York, D.C., Boston, and Toronto. Similarly, the rise of the PCA's campus ministry, Reformed University Fellowship, has produced a new generation of PCA ministers whose instincts and sympathies broadly align with those of the urban church planters. This geographical and cultural diversity creates a divide within the denomination. The old PCA of the southeast skews more conservative and even Trumpist. The PCA of the major cities and RUF skews more progressive (relative to the standards of a conservative denomination), and Never Trump or even pro-life Democrat.