| Pierce County North Dakota Cities/Towns - Balta, Barton, Rugby (County Seat), Wolford |
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![]() Your Ad Here Pierce County is a county located in the U.S. state of North Dakota. As of 2000, the population was 4,675. Its county seat is Rugby. History The geographical center of North America is in Pierce County, about 6 miles (10 km) west of Balta. Rugby has a monument for the center at the intersection of US 2 and ND 3. ![]() |