Greene County, Illinois: Power, Data Centers and the Local Economy
Home to Carrollton Township, White Hall Township and Carrollton
Greene County is not a build-out site today. It feels the boom through the grid it shares, the utilities that serve it and the work nearby. Greene County is home to Carrollton Township, White Hall Township, Carrollton and White Hall. Unemployment was 3.1% in August 2026, against 4.1% in 2019. Employers here counted 2,255 jobs in 2025, down 4.0% from 2019. Ameren Illinois Company is the largest utility serving Greene County, one of 4 with territory here. Its residential customers paid an average 15.26¢/kWh in 2024. 11,313 people live here, down 5.1% since 2020.
Cities and towns in Greene County
Greene County is home to Carrollton Township, White Hall Township, Carrollton and White Hall.
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 Greene County
1st = the most. Ranks cover counties with a value on record.
| Measure | Then | Now | Change | Rank in Illinois |
|---|---|---|---|---|
| Population (2020 → 2025) | 11,924 | 11,313 | ▼ 5.1% | 85th of 102 by size |
| Total jobs (2019 → 2025) | 2,348 | 2,255 | ▼ 4.0% | 71st of 102 by growth |
| Average annual pay (2019 → 2025) | $32,899 | $43,064 | ▲ 30.9% | — |
| Construction jobs (2019 → 2025) | 57 | 92 | ▲ 61.4% | — |
| Unemployment rate (2019 → August 2026) | 4.1% | 3.1% | ▼ 1.0pts | — |
Who powers Greene County
Utilities with service territory in Greene County
| Utility | Ownership | Service | Residential customers (systemwide) | Residential price, 2024 | Commercial share of sales |
|---|---|---|---|---|---|
| Ameren Illinois Company | Investor Owned | Bundled | 1,060,894 | 15.26¢ | 28% |
| M J M Electric Cooperative Inc | — | — | — | — | — |
| Illinois Rural Electric Coop | — | — | — | — | — |
| City of Roodhouse - (IL) | — | — | — | — | — |
Customer counts, prices and sales shares cover each utility's whole system in the state, not only this county. Commercial sales include data centers.
No operating power plant is located in Greene County in the EIA-860M inventory. Its power comes over the grid from plants elsewhere.
The Greene County labor market
| Industry (2025) | Jobs | Average pay | Concentration vs U.S. |
|---|---|---|---|
| All industries | 2,255 | $43,064 | 1.00 |
| Construction | 92 | $45,465 | 0.77 |
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 Greene County
No data center, local measure or delayed project is on record in Greene County. Illinois has 28 local measures on record statewide.
Greene County and its neighbors
Of the 6 counties that border Greene County, Macoupin 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 |
|---|---|---|---|---|---|---|
| Greene County | 11,313 | ▼ 4.0% | — | — | — | — |
| Calhoun County | 4,300 | ▲ 4.5% | — | — | — | — |
| Jersey County | 21,160 | ▲ 3.6% | 110 MW | — | — | — |
| Macoupin County | 43,748 | ▼ 3.6% | 226 MW | 5 MW | — | — |
| Morgan County | 32,515 | ▲ 0.1% | 183 MW | — | — | — |
| Pike County | 14,231 | ▼ 3.9% | 78 MW | 1 MW | — | — |
| Scott County | 4,866 | ▼ 7.5% | 173 MW | — | — | — |
More of Illinois
Greene County, answered from the record
Who provides electricity in Greene County, Illinois?
4 utilities have service territory in Greene County in the EIA-861 2024 report: Ameren Illinois Company, M J M Electric Cooperative Inc, Illinois Rural Electric Coop, City of Roodhouse - (IL). The largest, Ameren Illinois Company, charged residential customers 15.26¢/kWh on average in 2024.
Are there data centers in Greene County?
The SAVRN Data Center Map has no data center in Greene County.
Is Greene County adding jobs?
Employers counted 2,255 jobs in 2025 against 2,348 in 2019 (-4.0%, BLS QCEW). Construction went from 57 to 92.
Does Greene County have a data center moratorium?
No county-level measure is on record for Greene County. Illinois has 28 local measures statewide, listed on the state page.