Compared to the other cities in South Carolina and cities in all other U.S. states, how safe is Sumter, SC? From the gauges displayed above, you will notice that Sumter, SC has been ranked safer than 39% of other cities in the state of South Carolina. In addition, Sumter, SC is safer than 10% of cities in the entire United States. To achieve these results, all South Carolina and United States cities were analyzed to determine how many locations had a lower crime rate than Sumter, SC. By studying this data, it was possible to determine that Sumter, SC is below average in safety when compared with other United States cities.