# Carroll County, Illinois: Power, Data Centers and the Local Economy Home to Savanna Township, York Township and Savanna No data center or power plant project is on record in Carroll County, but the national build-out still reaches it through its utility bill, its labor market and the projects next door. Carroll County is home to Savanna Township, York Township, Savanna and Rock Creek-Lima Township. Next door, Clinton County, Iowa, has 600 MW of planned generation. 2 MW of that came online in 2019 or later, mostly solar. Unemployment was 3.4% in August 2026, against 4.2% in 2019. Its power plants have 2 MW of capacity, 100% of it solar. 2 MW of operating power plants, mostly solar -2.7% total jobs since 2019, now 4,081 15.22¢ per kWh for Commonwealth Edison Co residential customers, 2024 ## Cities and towns in Carroll County Carroll County is home to Savanna Township, York Township, Savanna and Rock Creek-Lima Township. Savanna Township3,324 residents York Township2,757 residents Savanna2,699 residents Rock Creek-Lima Township1,928 residents Mount Carroll Township1,897 residents Thomson1,606 residents Cherry Grove-Shannon Township1,574 residents Lanark1,452 residents Mount Carroll1,432 residents Wysox Township1,296 residents Milledgeville988 residents Shannon835 residents Freedom Township775 residents Fairhaven Township761 residents Chadwick476 residents Salem Township335 residents Washington Township314 residents Woodland Township271 residents Elkhorn Grove Township187 residents Unincorporated communities (governed by the county): Lake Carroll. 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 Carroll County | Measure | Then | Now | Change | Rank in Illinois | |---|---|---|---|---| | Population (2020 → 2025) | 15,686 | 15,419 | ▼ 1.7% | 67th of 102 by size | | Total jobs (2019 → 2025) | 4,196 | 4,081 | ▼ 2.7% | 64th of 102 by growth | | Average annual pay (2019 → 2025) | $39,491 | $51,869 | ▲ 31.3% | — | | Unemployment rate (2019 → August 2026) | 4.2% | 3.4% | ▼ 0.8pts | — | | Generating capacity added since 2019 | — | 2 MW | | — | | Generating capacity retired since 2019 | — | 0 MW | | — | Employers here counted 4,081 jobs in 2025, down 2.7% from 2019. Commonwealth Edison Co is the largest utility serving Carroll County, one of 2 with territory here. Its residential customers paid an average 15.22¢/kWh in 2024. 15,419 people live here, down 1.7% since 2020. ## Who powers Carroll County ### Utilities with service territory in Carroll County | Utility | Ownership | Service | Residential customers (systemwide) | Residential price, 2024 | Commercial share of sales | |---|---|---|---|---|---| | Commonwealth Edison Co | Investor Owned | Bundled | 3,727,675 | 15.22¢ | 27% | | Jo-Carroll Energy, Inc | Cooperative | Bundled | 17,227 | 19.79¢ | 27% | 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 | Technology | Capacity | Share | |---|---|---| | Solar | 2 MW | 100% | | Largest plants | Owner | Technology | MW | Since | |---|---|---|---|---| | DPC York | SoCore Energy LLC | Solar | 2 MW | 2019 | ## The Carroll County labor market | Industry (2025) | Jobs | Average pay | Concentration vs U.S. | |---|---|---|---| | All industries | 4,081 | $51,869 | 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 Carroll County No data center, local measure or delayed project is on record in Carroll County. Illinois has 28 local measures on record statewide. ## Carroll County and its neighbors Of the 6 counties that border Carroll County, Ogle 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 | |---|---|---|---|---|---|---| | Carroll County | 15,419 | ▼ 2.7% | 2 MW | — | — | — | | Clinton County](https://savrn.com/power-supply-chain-map/iowa/clinton-county) IA | 46,002 | ▼ 6.9% | 181 MW | 600 MW | — | — | | Jackson County](https://savrn.com/power-supply-chain-map/iowa/jackson-county) IA | 19,288 | ▼ 7.5% | 47 MW | — | — | — | | Jo Daviess County](https://savrn.com/power-supply-chain-map/illinois/jo-daviess-county) | 21,594 | ▲ 5.3% | 9 MW | — | — | — | | Ogle County](https://savrn.com/power-supply-chain-map/illinois/ogle-county) | 51,399 | ▼ 6.0% | 2,502 MW | — | 3 | — | | Stephenson County](https://savrn.com/power-supply-chain-map/illinois/stephenson-county) | 43,220 | ▼ 0.3% | 270 MW | 2 MW | — | — | | Whiteside County](https://savrn.com/power-supply-chain-map/illinois/whiteside-county) | 54,121 | ▼ 5.0% | 64 MW | 1 MW | — | — | ## More of Illinois [All Illinois countiesThe state power page and county mapOpen →](https://savrn.com/power-supply-chain-map/illinois)[Whiteside County54,121 peopleOpen →](https://savrn.com/power-supply-chain-map/illinois/whiteside-county)[Ogle County51,399 peopleOpen →](https://savrn.com/power-supply-chain-map/illinois/ogle-county)[Stephenson County43,220 peopleOpen →](https://savrn.com/power-supply-chain-map/illinois/stephenson-county)[Jo Daviess County21,594 peopleOpen →](https://savrn.com/power-supply-chain-map/illinois/jo-daviess-county) ## Carroll County, answered from the record ### Who provides electricity in Carroll County, Illinois? 2 utilities have service territory in Carroll County in the EIA-861 2024 report: Commonwealth Edison Co, Jo-Carroll Energy, Inc. The largest, Commonwealth Edison Co, charged residential customers 15.22¢/kWh on average in 2024. ### What power plants are in Carroll County? 1 operating plant with 2 MW of capacity. The largest is DPC York (2 MW, solar). ### Are there data centers in Carroll County? The SAVRN Data Center Map has no data center in Carroll County. The nearest activity on record is next door in Clinton County. ### Is Carroll County adding jobs? Employers counted 4,081 jobs in 2025 against 4,196 in 2019 (-2.7%, BLS QCEW). ### Does Carroll County have a data center moratorium? No county-level measure is on record for Carroll County. Illinois has 28 local measures statewide, listed on the state page. --- Canonical: https://savrn.com/power-supply-chain-map/illinois/carroll-county Updated: 2026-10-08. Refreshed weekly by SAVRN from EIA, BLS, BEA, Census and the SAVRN trackers. License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/).