Electricity in Harrison County, Mississippi
3 electric utilities serve homes in Harrison County, Mississippi: Mississippi Power, Coast Electric Power Association and Singing River Electric Cooperative. In 2025, the average home bill of these utilities was $164.11 (Singing River Electric Cooperative) to $178.65 (Mississippi Power) a month. This page covers 2 cities with 25,000 or more people in the county, from Gulfport to Biloxi.
- 2 cities
- 3 utilities
- EIA and Census data, 2025
Electric utilities in Harrison County
EIA lists utilities by county, not by address. Your address has one utility: its name is on your bill, or type your ZIP code in the utility finder.
| Utility | Homes in Mississippi | Average bill 2025 | 1,000 kWh now |
|---|---|---|---|
| Mississippi PowerInvestor-owned utility · bill calculator | 158,206 | $178.651,139 kWh, 15.7¢ | $157.00 |
| Coast Electric Power AssociationElectric cooperative | 84,194 | $172.661,232 kWh, 14.0¢ | — |
| Singing River Electric CooperativeElectric cooperative | 73,398 | $164.111,212 kWh, 13.5¢ | — |
The average bill is the 2025 average of each utility's homes that bought their power from it (EIA-861). The Mississippi average was $166.05 a month.
Cities in Harrison County
| City | People | City-owned utility | Solar kWh a year per kW |
|---|---|---|---|
| Gulfport | 76,506 | — | 1,520 |
| Biloxi | 48,516 | — | 1,518 |
A city-owned utility is a municipal utility in the county with the city's name (EIA data). Solar output: PVWatts version 8 for a south-facing roof; see the solar savings calculator.
More about Mississippi: Mississippi electric rates, all Mississippi utilities, home energy rebates and natural gas bills.
Who provides electricity in Harrison County?
3 electric utilities serve homes in Harrison County, Mississippi: Mississippi Power, Coast Electric Power Association and Singing River Electric Cooperative. The name of your utility is on your bill.
Which cities in Harrison County are on this page?
Gulfport and Biloxi.
Sources: EIA-861 data, 2025 (utilities by county, homes and average bills); Census Bureau city population estimates, Vintage 2025; PVWatts (National Laboratory of the Rockies).