Compared to the other cities in Illinois and cities in all other U.S. states, how safe is Park Forest, IL? From the gauges displayed above, you will notice that Park Forest, IL has been ranked safer than 26% of other cities in the state of Illinois. In addition, Park Forest, IL is safer than 40% of cities in the entire United States. To achieve these results, all Illinois and United States cities were analyzed to determine how many locations had a lower crime rate than Park Forest, IL. By studying this data, it was possible to determine that Park Forest, IL is below average in safety when compared with other United States cities.