Which company supplies the natural gas?
Ohio publishes no gas territory boundaries, so this layer combines three sources: PUCO's April 2026 map of the gas distribution companies operating in each county (from its pipeline-safety database), the federal HIFLD territory polygons (EIA Form 176, 2016 vintage, the newest public boundaries), and the Census Bureau's count of how homes heat (ACS 2020 to 2024). A ZIP takes the company whose territory covers the most residents among the companies PUCO lists for that county; municipal limits win, then the four large utilities, then small companies and cooperatives, whose polygons cover far more ground than their mains. A ZIP where under a fifth of homes heat with utility gas is drawn faded.
1,224 of 1,233 ZIPs have data.
Legend
Map of Ohio by Gas
Source
PUCO 2026 county map of gas distribution companies, HIFLD/EIA-176 territory polygons, ACS 2020-2024 heating fuel
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Quick answers
Which natural gas companies serve Ohio?
Across Ohio's ZIP codes: Columbia Gas of Ohio, 613 ZIP codes; Enbridge Gas Ohio, 277 ZIP codes; Duke Energy Ohio, 113 ZIP codes; CenterPoint Energy Ohio, 127 ZIP codes; 15 small regulated companies, 90 ZIP codes; 6 municipal systems, 4 ZIP codes; Faded: few homes on gas, 194 ZIP codes; No data, 9 ZIP codes. Ohio publishes no gas territory boundaries, so this layer combines three sources: PUCO's April 2026 map of the gas distribution companies operating in each county (from its pipeline-safety database), the federal HIFLD territory polygons (EIA Form 176, 2016 vintage, the newest public boundaries), and the Census Bureau's count of how homes heat (ACS 2020 to 2024).
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Cracked Buckeye, "Gas", https://crackedbuckeye.com/topics/gas/, built 2026-10-31, accessed [date].
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