Clinton County, Ohio: Power, Data Centers and the Local Economy
Home to Wilmington, Marion Township and Blanchester
Clinton County is one of the places the data center build-out is physically happening. The SAVRN Data Center Map lists 3 data centers in Clinton County. Clinton County is home to Wilmington, Marion Township, Blanchester and Richland Township. 300 MW of new generation is planned here across 1 unit, led by Invenergy Services LLC (solar), the 3rd largest pipeline among Ohio's counties. 300 MW of it is already under construction or built. 10 MW has retired here since 2019, including Clinton Battery (battery storage, 10 MW, 2026). Unemployment was 3.0% in August 2026, against 4.0% in 2019.
Cities and towns in Clinton County
Clinton County is home to Wilmington, Marion Township, Blanchester and Richland Township.
Residents are 2025 Census estimates for the part of each city, town or township inside this county. Census publishes no annual estimate for unincorporated communities.
What changed in Clinton County
1st = the most. Ranks cover counties with a value on record.
| Measure | Then | Now | Change | Rank in Ohio |
|---|---|---|---|---|
| Population (2020 → 2025) | 42,035 | 42,301 | ▲ 0.6% | 58th of 88 by size |
| Total jobs (2019 → 2025) | 18,038 | 19,013 | ▲ 5.4% | 21st of 88 by growth |
| Average annual pay (2019 → 2025) | $49,222 | $66,234 | ▲ 34.6% | — |
| Unemployment rate (2019 → August 2026) | 4.0% | 3.0% | ▼ 1.0pts | — |
| Generating capacity added since 2019 | — | 50 MW | — | |
| Generating capacity retired since 2019 | — | 10 MW | — | |
| Planned generation (Aug 2026) | — | 300 MW | 601% of today's fleet | 3rd of 22 by size |
50 MW of that came online in 2019 or later, mostly solar. Employers here counted 19,013 jobs in 2025, up 5.4% from 2019. Its power plants have 50 MW of capacity, 100% of it solar. Duke Energy Ohio Inc is the largest utility serving Clinton County, one of 4 with territory here. Its residential customers paid an average 15.00¢/kWh in 2024, below the 15.40¢ median for Ohio utilities. 42,301 people live here, up 0.6% since 2020.
Who powers Clinton County
Net change in operating capacity since 2019: +40 MW. Colors follow the fuel legend above.
Utilities with service territory in Clinton County
| Utility | Ownership | Service | Residential customers (systemwide) | Residential price, 2024 | Commercial share of sales |
|---|---|---|---|---|---|
| Duke Energy Ohio Inc | Investor Owned | Bundled | 693,435 | 15.00¢ | 26% |
| Dayton Power & Light Co | Investor Owned | Bundled | 478,741 | 15.32¢ | 20% |
| South Central Power Company | Cooperative | Bundled | 117,469 | 14.87¢ | 14% |
| Village of Blanchester - (OH) | — | — | — | — | — |
Customer counts, prices and sales shares cover each utility's whole system in the state, not only this county. Commercial sales include data centers.
Operating power plants 1
| Technology | Capacity | Share |
|---|---|---|
| Solar | 50 MW | 100% |
| Largest plants | Owner | Technology | MW | Since |
|---|---|---|---|---|
| Clinton Solar (OH) | Clinton Solar (OH) LLC | Solar | 50 MW | 2025 |
Planned generation 1
| Plant | Technology | MW | Status | Year | Owner |
|---|---|---|---|---|---|
| Yellow Wood Solar Energy LLC | Solar Photovoltaic | 300 MW | Under construction (≤50%) | 2027 | Invenergy Services LLC |
Retired since 2019
| Plant | Technology | MW | Year |
|---|---|---|---|
| Clinton Battery | Battery storage | 10 MW | 2026 |
The Clinton County labor market
| Industry (2025) | Jobs | Average pay | Concentration vs U.S. |
|---|---|---|---|
| All industries | 19,013 | $66,234 | 1.00 |
Concentration is the BLS location quotient: 1.0 means the industry holds the same share of local jobs as it does nationally. Industry rows count private employers; cells BLS suppresses are left out.
Data centers and local rules in Clinton County
3 data centers in Clinton County are on the SAVRN Data Center Map.
Clinton County and its neighbors
Of the 6 counties that border Clinton County, Highland County carries the most build-out activity: data centers, planned generation and operating plants combined.
| County | Population | Jobs since 2019 | Operating MW | Planned MW | Data centers | Local measures |
|---|---|---|---|---|---|---|
| Clinton County | 42,301 | ▲ 5.4% | 50 MW | 300 MW | 3 | — |
| Brown County | 44,397 | ▲ 2.3% | 205 MW | — | — | — |
| Clermont County | 216,977 | ▲ 5.6% | 84 MW | — | — | — |
| Fayette County | 28,552 | ▲ 7.3% | — | — | — | 1 |
| Greene County | 174,322 | ▲ 5.2% | 2 MW | 175 MW | — | — |
| Highland County | 43,823 | ▲ 3.5% | 667 MW | 200 MW | — | 1 |
| Warren County | 257,181 | ▲ 5.5% | 20 MW | — | 4 | 1 |
More of Ohio
Clinton County, answered from the record
Who provides electricity in Clinton County, Ohio?
4 utilities have service territory in Clinton County in the EIA-861 2024 report: Duke Energy Ohio Inc, Dayton Power & Light Co, South Central Power Company, Village of Blanchester - (OH). The largest, Duke Energy Ohio Inc, charged residential customers 15.00¢/kWh on average in 2024.
What county is Wilmington, OH in?
Wilmington is in Clinton County, Ohio. About 12,802 people live there (2025 Census estimate).
What power plants are in Clinton County?
1 operating plant with 50 MW of capacity. The largest is Clinton Solar (OH) (50 MW, solar).
How much new power is planned in Clinton County?
300 MW across 1 units in the August 2026 EIA-860M inventory, 300 MW of it under construction or built. The largest owner is Invenergy Services LLC.
Are there data centers in Clinton County?
Yes. The SAVRN Data Center Map lists 3 data centers in Clinton County.
Is Clinton County adding jobs?
Employers counted 19,013 jobs in 2025 against 18,038 in 2019 (+5.4%, BLS QCEW).
Does Clinton County have a data center moratorium?
No county-level measure is on record for Clinton County. Ohio has 105 local measures statewide, listed on the state page.