Peoria County, Illinois: Power, Data Centers and the Local Economy
Home to Peoria, Peoria City Township and Limestone Township
Peoria County sits inside the data center build-out. The SAVRN Data Center Map lists 2 data centers in Peoria County. Peoria County is home to Peoria, Peoria City Township, Limestone Township and Medina Township. 11 MW of new generation is planned here across 4 units, led by AES Clean Energy (solar). 11 MW of it is already under construction or built. 644 MW has retired here since 2019, including E D Edwards (coal, 644 MW, 2022). 29 MW of that came online in 2019 or later, mostly solar.
Cities and towns in Peoria County
Peoria County is home to Peoria, Peoria City Township, Limestone Township and Medina Township.
And 10 smaller places.
Unincorporated communities (governed by the county): Lake Camelot, Mossville, Rome, Smithville, Trivoli.
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 Peoria County
1st = the most. Ranks cover counties with a value on record.
| Measure | Then | Now | Change | Rank in Illinois |
|---|---|---|---|---|
| Population (2020 → 2025) | 181,505 | 178,553 | ▼ 1.6% | 12th of 102 by size |
| Total jobs (2019 → 2025) | 104,130 | 101,809 | ▼ 2.2% | 60th of 102 by growth |
| Average annual pay (2019 → 2025) | $61,423 | $76,933 | ▲ 25.3% | — |
| Electrical contractor jobs (2019 → 2025) | 295 | 285 | ▼ 3.4% | — |
| Unemployment rate (2019 → August 2026) | 4.9% | 4.5% | ▼ 0.4pts | — |
| Generating capacity added since 2019 | — | 29 MW | — | |
| Generating capacity retired since 2019 | — | 644 MW | — | |
| Planned generation (Aug 2026) | — | 11 MW | 23% of today's fleet | 36th of 57 by size |
Its power plants have 47 MW of capacity, 62% of it solar. Employers here counted 101,809 jobs in 2025, down 2.2% from 2019. Electrical contractors employ 285, down 3.4% since 2019 against up 3.9% statewide, at an average $83,651 a year. Ameren Illinois Company is the largest utility serving Peoria County, one of 2 with territory here. Its residential customers paid an average 15.26¢/kWh in 2024. Unemployment was 4.5% in August 2026, against 4.9% in 2019. 178,553 people live here, down 1.6% since 2020.
Who powers Peoria County
Net change in operating capacity since 2019: −615 MW. Colors follow the fuel legend above.
Utilities with service territory in Peoria 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% |
| Spoon River Electric Coop, Inc | — | — | — | — | — |
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 14
| Technology | Capacity | Share |
|---|---|---|
| Solar | 29 MW | 62% |
| Natural gas | 18 MW | 38% |
| Largest plants | Owner | Technology | MW | Since |
|---|---|---|---|---|
| Archer Daniels Midland Peoria | BioUrja Renewables LLC | Natural gas | 18 MW | 1988 |
| Peoria Solar 3 | Pivot Energy | Solar | 5 MW | 2025 |
| Brimfield Solar | SRC Partnership 15 LLC | Solar | 2 MW | 2025 |
| CED Peoria Solar | Bay4 Energy Services, LLC | Solar | 2 MW | 2021 |
| Cameron Solar, LLC - (IL) | SREOG IL Partnership 3, LLC | Solar | 2 MW | 2023 |
| IL - ForeFront CS (Brimfield 2) | IL Solar Brimfield Project2, LLC | Solar | 2 MW | 2025 |
Planned generation 4
| Plant | Technology | MW | Status | Year | Owner |
|---|---|---|---|---|---|
| Allen CSG | Solar Photovoltaic | 5 MW | Under construction (>50%) | 2027 | AES Clean Energy |
| IL - Forefront Ameren- Route 40 | Solar Photovoltaic | 2 MW | Under construction (>50%) | 2026 | IL Solar Route 40 Project2, LLC |
| IL-Forefront Ameren-Truitt 1 | Solar Photovoltaic | 2 MW | Under construction (>50%) | 2026 | IL Solar Truitt Project1, LLC |
| IL-Forefront Ameren-Truitt 2 | Solar Photovoltaic | 2 MW | Under construction (>50%) | 2026 | IL Solar Truitt Project2, LLC |
Retired since 2019
| Plant | Technology | MW | Year |
|---|---|---|---|
| E D Edwards | Coal | 644 MW | 2022 |
The Peoria County labor market
| Industry (2025) | Jobs | Average pay | Concentration vs U.S. |
|---|---|---|---|
| All industries | 101,809 | $76,933 | 1.00 |
| Electrical contractors | 285 | $83,651 | 0.39 |
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 Peoria County
2 data centers in Peoria County are on the SAVRN Data Center Map: see them by city and operator.
Peoria County and its neighbors
Of the 6 counties that border Peoria County, Woodford 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 |
|---|---|---|---|---|---|---|
| Peoria County | 178,553 | ▼ 2.2% | 47 MW | 11 MW | 2 | — |
| Fulton County | 32,901 | ▲ 4.6% | 156 MW | — | — | — |
| Knox County | 47,767 | ▼ 2.4% | 16 MW | 5 MW | 1 | — |
| Marshall County | 11,473 | ▲ 1.3% | 146 MW | 178 MW | — | — |
| Stark County | 5,319 | ▲ 19.5% | 154 MW | — | — | — |
| Tazewell County | 130,049 | ▼ 2.5% | 1,897 MW | 20 MW | — | 2 |
| Woodford County | 38,111 | ▲ 12.6% | 200 MW | 428 MW | — | 1 |
More of Illinois
Peoria County, answered from the record
Who provides electricity in Peoria County, Illinois?
2 utilities have service territory in Peoria County in the EIA-861 2024 report: Ameren Illinois Company, Spoon River Electric Coop, Inc. The largest, Ameren Illinois Company, charged residential customers 15.26¢/kWh on average in 2024.
What county is Peoria, IL in?
Peoria is in Peoria County, Illinois. About 110,920 people live there (2025 Census estimate).
What county is Peoria City Township, IL in?
Peoria City Township is in Peoria County, Illinois. About 95,876 people live there (2025 Census estimate).
What county is Limestone Township, IL in?
Limestone Township is in Peoria County, Illinois. About 18,035 people live there (2025 Census estimate).
What power plants are in Peoria County?
14 operating plants with 47 MW of capacity. The largest is Archer Daniels Midland Peoria (18 MW, natural gas).
How much new power is planned in Peoria County?
11 MW across 4 units in the August 2026 EIA-860M inventory, 11 MW of it under construction or built. The largest owner is AES Clean Energy.
Are there data centers in Peoria County?
Yes. The SAVRN Data Center Map lists 2 data centers in Peoria County.
Is Peoria County adding jobs?
Employers counted 101,809 jobs in 2025 against 104,130 in 2019 (-2.2%, BLS QCEW).
Does Peoria County have a data center moratorium?
No county-level measure is on record for Peoria County. Illinois has 28 local measures statewide, listed on the state page.