Illinois State Profile
Population (2023): 12,582,032
Total Number of Natural Gas Utilities: 85
Number of Municipal Natural Gas Utilities: 66
Number of APGA Members: 44
Total Number of Customers (All Utilities): 4,245,449
Total Number of Customers (APGA Members): 53,719
Miles of Pipeline (All Utilities): 65,449
Miles of Pipeline (APGA Members): 1,814
*customer and miles data is self-reported as of early 2023
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