Illinois State Profile
Population (2024): 12,549,689
Total Number of Natural Gas Utilities: 85
Number of Municipal Natural Gas Utilities: 64
Number of APGA Members: 42
Total Number of Customers (All Utilities): 4,301,323
Total Number of Customers (APGA Members): 50,948
Miles of Pipeline (All Utilities): 63,026
Miles of Pipeline (APGA Members): 1,304
*customer and miles data is self-reported as of early 2024
Download State Profile PDF