Marion County, Indiana: Power, Data Centers and the Local Economy
Home to Indianapolis, Center Township and Wayne Township
Marion County is one of the places pushing back on the data center build-out. The SAVRN Data Center Map lists 19 data centers in Marion County, 23% of Indiana's total. Marion County is home to Indianapolis, Center Township, Wayne Township and Washington Township. The Moratorium Tracker holds 1 local measure here (1 in force); the latest is “Data center moratorium through 2027”. 5 projects are on the Delay Watchlist, including DC Blox Indianapolis (Warren Township). Construction employs 37,561, up 30.1% since 2019.
Cities and towns in Marion County
Marion County is home to Indianapolis, Center Township, Wayne Township and Washington Township.
- Cumberland also extends into Hancock County.
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 Marion County
1st = the most. Ranks cover counties with a value on record.
| Measure | Then | Now | Change | Rank in Indiana |
|---|---|---|---|---|
| Population (2020 → 2025) | 976,708 | 992,196 | ▲ 1.6% | 1st of 92 by size |
| Total jobs (2019 → 2025) | 607,651 | 625,109 | ▲ 2.9% | 34th of 92 by growth |
| Average annual pay (2019 → 2025) | $59,153 | $80,642 | ▲ 36.3% | — |
| Construction jobs (2019 → 2025) | 28,865 | 37,561 | ▲ 30.1% | 19th of 68 by growth |
| Electrical contractor jobs (2019 → 2025) | 3,733 | 5,148 | ▲ 37.9% | — |
| Data processing and hosting jobs (2019 → 2025) | 1,385 | 1,424 | ▲ 2.8% | — |
| Unemployment rate (2019 → August 2026) | 3.3% | 3.6% | ▲ 0.3pts | — |
| Generating capacity added since 2019 | — | 0 MW | — | |
| Generating capacity retired since 2019 | — | 5 MW | — |
Electrical contractors employ 5,148, up 37.9% since 2019 against up 34.8% statewide, at an average $84,216 a year. Its power plants have 1,513 MW of capacity, 88% of it natural gas, the 8th largest fleet in Indiana. 5 MW has retired here since 2019, including CC Perry K (natural gas, 3 MW, 2024). Employers here counted 625,109 jobs in 2025, up 2.9% from 2019. Duke Energy Indiana, LLC is the largest utility serving Marion County, one of 2 with territory here. Its residential customers paid an average 12.75¢/kWh in 2024, below the 14.63¢ median for Indiana utilities. Unemployment was 3.6% in August 2026, against 3.3% in 2019. 992,196 people live here, up 1.6% since 2020, 1st of 92 Indiana counties by population.
Who powers Marion County
Net change in operating capacity since 2019: −5 MW. Colors follow the fuel legend above.
Utilities with service territory in Marion 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% |
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 23
| Technology | Capacity | Share |
|---|---|---|
| Natural gas | 1,335 MW | 88% |
| Solar | 92 MW | 6% |
| Petroleum | 60 MW | 4% |
| Battery storage | 20 MW | 1% |
| Other technologies | 6 MW | 0% |
| Largest plants | Owner | Technology | MW | Since |
|---|---|---|---|---|
| Harding Street | AES Indiana | Natural gas | 1,065 MW | 1958 |
| Georgetown | AES Indiana | Natural gas | 340 MW | 2000 |
| Indy Solar II, LLC | Onward Energy | Solar | 10 MW | 2013 |
| Indy Solar I, LLC | Onward Energy | Solar | 10 MW | 2013 |
| IND Community Solar Farm 1st Phase | Terraform Arcadia | Solar | 10 MW | 2013 |
| Indianapolis Motor Speedway Solar PV | Boralex US Operations LLC | Solar | 9 MW | 2014 |
Retired since 2019
| Plant | Technology | MW | Year |
|---|---|---|---|
| CC Perry K | Natural gas | 3 MW | 2024 |
| Lilly Technical Center | Petroleum | 2 MW | 2022 |
The Marion County labor market
| Industry (2025) | Jobs | Average pay | Concentration vs U.S. |
|---|---|---|---|
| All industries | 625,109 | $80,642 | 1.00 |
| Construction | 37,561 | $90,779 | 1.13 |
| Electrical contractors | 5,148 | $84,216 | 1.14 |
| Data processing and hosting | 1,424 | $91,456 | 0.73 |
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 Marion County
19 data centers in Marion County are on the SAVRN Data Center Map.
Local measures 1
| Measure | Status | Date | |
|---|---|---|---|
| Data center moratorium through 2027 | In force | 2026-08 |
Delay Watchlist 5
| Project | Status | Cause | MW | |
|---|---|---|---|---|
| DC Blox Indianapolis (Warren Township) | approved but citywide moratorium pending | — | ||
| Metrobloks Martindale-Brightwood | approved but citywide moratorium pending | — | ||
| Sabey Data Center (Decatur Township) | approved but citywide moratorium pending | — | ||
| Google Franklin Township Campus (withdrawn) | withdrawn | — | ||
| Sabey Decatur Technology Park | approved amid opposition | — |
Marion County and its neighbors
Of the 7 counties that border Marion County, Morgan 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 |
|---|---|---|---|---|---|---|
| Marion County | 992,196 | ▲ 2.9% | 1,513 MW | — | 19 | 1 |
| Boone County | 80,689 | ▲ 51.8% | — | — | 2 | 3 |
| Hamilton County | 387,036 | ▲ 16.2% | 284 MW | — | 2 | — |
| Hancock County | 90,969 | ▲ 16.8% | 3 MW | — | 1 | — |
| Hendricks County | 193,510 | ▲ 10.5% | 23 MW | — | 1 | — |
| Johnson County | 174,262 | ▲ 16.6% | 10 MW | — | — | — |
| Morgan County | 74,967 | ▼ 0.1% | 644 MW | — | 1 | — |
| Shelby County | 45,882 | ▲ 3.7% | 205 MW | — | 1 | — |
More of Indiana
Marion County, answered from the record
Who provides electricity in Marion County, Indiana?
2 utilities have service territory in Marion County in the EIA-861 2024 report: Duke Energy Indiana, LLC, AES Indiana. The largest, Duke Energy Indiana, LLC, charged residential customers 12.75¢/kWh on average in 2024.
What county is Indianapolis, IN in?
Indianapolis is in Marion County, Indiana. About 901,116 people live there (2025 Census estimate).
What county is Center Township, IN in?
Center Township is in Marion County, Indiana. About 155,258 people live there (2025 Census estimate).
What county is Wayne Township, IN in?
Wayne Township is in Marion County, Indiana. About 150,959 people live there (2025 Census estimate).
What power plants are in Marion County?
23 operating plants with 1,513 MW of capacity. The largest is Harding Street (1,065 MW, natural gas).
Are there data centers in Marion County?
Yes. The SAVRN Data Center Map lists 19 data centers in Marion County.
Is Marion County adding jobs?
Employers counted 625,109 jobs in 2025 against 607,651 in 2019 (+2.9%, BLS QCEW). Construction went from 28,865 to 37,561.
Does Marion County have a data center moratorium?
The SAVRN Moratorium Tracker holds 1 local measure for Marion County, 1 in force.