Sullivan County, Indiana: Power, Data Centers and the Local Economy
Home to Hamilton Township, Sullivan and Haddon Township
Sullivan County is a generation frontier for Indiana. Sullivan County is home to Hamilton Township, Sullivan, Haddon Township and Curry Township. Construction employs 113, up 48.7% since 2019. 964 MW of new generation is planned here across 1 unit, led by Invenergy Services LLC (natural gas), the 2nd largest pipeline among Indiana's counties. Its power plants have 1,548 MW of capacity, 70% of it coal, the 7th largest fleet in Indiana. 450 MW of that came online in 2019 or later, mostly solar.
Cities and towns in Sullivan County
Sullivan County is home to Hamilton Township, Sullivan, Haddon Township and Curry 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 Sullivan County
1st = the most. Ranks cover counties with a value on record.
| Measure | Then | Now | Change | Rank in Indiana |
|---|---|---|---|---|
| Population (2020 → 2025) | 20,820 | 20,831 | ▲ 0.1% | 69th of 92 by size |
| Total jobs (2019 → 2025) | 5,758 | 5,632 | ▼ 2.2% | 65th of 92 by growth |
| Average annual pay (2019 → 2025) | $45,525 | $54,710 | ▲ 20.2% | — |
| Construction jobs (2019 → 2025) | 76 | 113 | ▲ 48.7% | 8th of 68 by growth |
| Unemployment rate (2019 → August 2026) | 3.8% | 3.2% | ▼ 0.6pts | — |
| Generating capacity added since 2019 | — | 450 MW | — | |
| Generating capacity retired since 2019 | — | 0 MW | — | |
| Planned generation (Aug 2026) | — | 964 MW | 62% of today's fleet | 2nd of 16 by size |
Unemployment was 3.2% in August 2026, against 3.8% in 2019. Employers here counted 5,632 jobs in 2025, down 2.2% from 2019. Duke Energy Indiana, LLC is the largest utility serving Sullivan County, one of 4 with territory here. Its residential customers paid an average 12.75¢/kWh in 2024, below the 14.63¢ median for Indiana utilities. 20,831 people live here, up 0.1% since 2020.
Who powers Sullivan County
Net change in operating capacity since 2019: +450 MW. Colors follow the fuel legend above.
Utilities with service territory in Sullivan County
| Utility | Ownership | Service | Residential customers (systemwide) | Residential price, 2024 | Commercial share of sales |
|---|---|---|---|---|---|
| Duke Energy Indiana, LLC | Investor Owned | Bundled | 796,265 | 12.75¢ | 31% |
| AES Indiana | Investor Owned | Bundled | 469,499 | 13.75¢ | 14% |
| Utilities Dist-Western IN REMC | Cooperative | Bundled | 18,898 | 16.10¢ | 13% |
| Western Indiana Energy REMC | Cooperative | Bundled | 15,017 | 14.39¢ | 19% |
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 5
| Technology | Capacity | Share |
|---|---|---|
| Coal | 1,080 MW | 70% |
| Solar | 455 MW | 29% |
| Other technologies | 13 MW | 1% |
| Largest plants | Owner | Technology | MW | Since |
|---|---|---|---|---|
| Merom | Hallador Power Company, LLC | Coal | 1,080 MW | 1982 |
| Fairbanks Solar Project | Fairbanks Solar Energy Center LLC | Solar | 250 MW | 2025 |
| Trade Post Solar | Invenergy Services LLC | Solar | 200 MW | 2026 |
| Osprey Point RES | Hoosier Energy R E C, Inc | Other technologies | 13 MW | 2013 |
| Sullivan Solar, LLC | Cypress Creek Renewables | Solar | 5 MW | 2016 |
Planned generation 1
| Plant | Technology | MW | Status | Year | Owner |
|---|---|---|---|---|---|
| Sycamore Riverside Energy, LLC | Natural Gas Fired Combustion Turbine | 964 MW | Planned, approvals not started | 2029 | Invenergy Services LLC |
The Sullivan County labor market
| Industry (2025) | Jobs | Average pay | Concentration vs U.S. |
|---|---|---|---|
| All industries | 5,632 | $54,710 | 1.00 |
| Construction | 113 | $77,146 | 0.38 |
| Electric utilities | 191 | $130,091 | 12.53 |
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 Sullivan County
No data center, local measure or delayed project is on record in Sullivan County. Indiana has 40 local measures on record statewide.
Sullivan County and its neighbors
Of the 6 counties that border Sullivan County, Knox 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 |
|---|---|---|---|---|---|---|
| Sullivan County | 20,831 | ▼ 2.2% | 1,548 MW | 964 MW | — | — |
| Clark County IL | 15,114 | ▼ 6.5% | 189 MW | — | — | — |
| Clay County | 26,410 | ▼ 0.3% | 9 MW | — | — | — |
| Crawford County IL | 18,648 | ▲ 8.2% | 7 MW | — | — | — |
| Greene County | 31,165 | ▲ 0.8% | 248 MW | — | — | — |
| Knox County | 35,652 | ▼ 3.0% | 1,463 MW | — | — | — |
| Vigo County | 106,512 | ▼ 1.8% | 862 MW | — | — | — |
More of Indiana
Sullivan County, answered from the record
Who provides electricity in Sullivan County, Indiana?
4 utilities have service territory in Sullivan County in the EIA-861 2024 report: Duke Energy Indiana, LLC, AES Indiana, Utilities Dist-Western IN REMC, Western Indiana Energy REMC. The largest, Duke Energy Indiana, LLC, charged residential customers 12.75¢/kWh on average in 2024.
What power plants are in Sullivan County?
5 operating plants with 1,548 MW of capacity. The largest is Merom (1,080 MW, coal).
How much new power is planned in Sullivan County?
964 MW across 1 units in the August 2026 EIA-860M inventory, 0 MW of it under construction or built. The largest owner is Invenergy Services LLC.
Are there data centers in Sullivan County?
The SAVRN Data Center Map has no data center in Sullivan County.
Is Sullivan County adding jobs?
Employers counted 5,632 jobs in 2025 against 5,758 in 2019 (-2.2%, BLS QCEW). Construction went from 76 to 113.
Does Sullivan County have a data center moratorium?
No county-level measure is on record for Sullivan County. Indiana has 40 local measures statewide, listed on the state page.