Where was antifederalists support concentrated?

Antifederalist support was primarily concentrated in rural areas and among smaller states, where residents often feared that a strong central government would encroach on their rights and local autonomy. They were particularly influential in regions such as the South and the western frontier, where agricultural interests and concerns about government overreach were prominent. Additionally, many Antifederalists were motivated by a desire to protect individual liberties and maintain the power of state governments.