Average natural gas rate in South Dakota
Residential average from EIA data, July 2026.
South Dakota average
$1.71 per therm
National average
$2.55 per therm
South Dakota runs 32.8% below the national average.
Recent months
| Month | Average rate |
|---|---|
| July 2026 | $1.71 per therm |
| June 2026 | $1.47 per therm |
| May 2026 | $1.06 per therm |
Source: U.S. Energy Information Administration, residential sector.
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