Seven Fields Borough is a small, rapidly growing, relatively new community located in Southwest Butler County. Seven Fields Borough is one square mile. The community is mostly residential in make-up. Seven Fields Borough is located seventeen (17) miles North of Pittsburgh. The population of Seven Fields Borough is 1,981. Recent census statistics show a 213% increase in population from 1990-2000 alone. Cranberry Township , its neighbor to the west, has also experienced rapid growth and currently boasts the largest increase in population in the nation.