Mifflin County, Pennsylvania: Power, Data Centers and the Local Economy
Home to Lewistown, Derry Township and Granville Township
Mifflin 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. Construction employs 988, up 56.1% since 2019. Mifflin County is home to Lewistown, Derry Township, Granville Township and Brown Township. Unemployment was 3.1% in August 2026, against 4.3% in 2019. Employers here counted 17,229 jobs in 2025, up 6.9% from 2019 (the 3rd fastest growth of 67 Pennsylvania counties). Electrical contractors employ 70, up 1.4% since 2019 against up 5.3% statewide, at an average $51,272 a year.
Cities and towns in Mifflin County
Mifflin County is home to Lewistown, Derry Township, Granville Township and Brown Township.
Unincorporated communities (governed by the county): Alfarata, Allensville, Atkinson Mills, Barrville, Belleville, Cedar Crest, Church Hill, Granville, Highland Park, Longfellow, Lumber City, Maitland, Mattawana, Milroy, Potlicker Flats, Reedsville, Siglerville, Strodes Mills, Wagner, Yeagertown.
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 Mifflin County
1st = the most. Ranks cover counties with a value on record.
| Measure | Then | Now | Change | Rank in Pennsylvania |
|---|---|---|---|---|
| Population (2020 → 2025) | 46,144 | 46,127 | ● 0.0% | 47th of 67 by size |
| Total jobs (2019 → 2025) | 16,114 | 17,229 | ▲ 6.9% | 3rd of 67 by growth |
| Average annual pay (2019 → 2025) | $40,839 | $54,311 | ▲ 33.0% | — |
| Construction jobs (2019 → 2025) | 633 | 988 | ▲ 56.1% | 1st of 62 by growth |
| Electrical contractor jobs (2019 → 2025) | 69 | 70 | ▲ 1.4% | — |
| Unemployment rate (2019 → August 2026) | 4.3% | 3.1% | ▼ 1.2pts | — |
FirstEnergy Pennsylvania Electric Co is the largest utility serving Mifflin County, one of 3 with territory here. Its residential customers paid an average 17.37¢/kWh in 2024, above the 16.30¢ median for Pennsylvania utilities. 46,127 people live here, down 0.0% since 2020.
Who powers Mifflin County
Utilities with service territory in Mifflin County
| Utility | Ownership | Service | Residential customers (systemwide) | Residential price, 2024 | Commercial share of sales |
|---|---|---|---|---|---|
| FirstEnergy Pennsylvania Electric Co | Investor Owned | Bundled | 1,802,612 | 17.37¢ | 16% |
| PPL Electric Utilities Corp | Investor Owned | Bundled | 1,295,883 | 16.99¢ | 19% |
| Valley Rural Electric Coop Inc | Cooperative | Bundled | 18,180 | 14.87¢ | 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.
No operating power plant is located in Mifflin County in the EIA-860M inventory. Its power comes over the grid from plants elsewhere.
The Mifflin County labor market
| Industry (2025) | Jobs | Average pay | Concentration vs U.S. |
|---|---|---|---|
| All industries | 17,229 | $54,311 | 1.00 |
| Construction | 988 | $67,596 | 1.08 |
| Electrical contractors | 70 | $51,272 | 0.56 |
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 Mifflin County
No data center, local measure or delayed project is on record in Mifflin County. Pennsylvania has 36 local measures on record statewide, and 1 neighboring county has one: Union County.
Mifflin County and its neighbors
Of the 5 counties that border Mifflin County, Snyder 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 |
|---|---|---|---|---|---|---|
| Mifflin County | 46,127 | ▲ 6.9% | — | — | — | — |
| Centre County | 157,393 | ▲ 1.7% | 28 MW | 162 MW | — | — |
| Huntingdon County | 43,001 | ▲ 0.3% | 24 MW | — | — | — |
| Juniata County | 23,403 | ▼ 9.6% | 20 MW | 83 MW | — | — |
| Snyder County | 39,655 | ▼ 1.6% | 1,270 MW | 15 MW | — | — |
| Union County | 42,313 | ▼ 1.6% | 13 MW | — | — | 1 |
More of Pennsylvania
Mifflin County, answered from the record
Who provides electricity in Mifflin County, Pennsylvania?
3 utilities have service territory in Mifflin County in the EIA-861 2024 report: FirstEnergy Pennsylvania Electric Co, PPL Electric Utilities Corp, Valley Rural Electric Coop Inc. The largest, FirstEnergy Pennsylvania Electric Co, charged residential customers 17.37¢/kWh on average in 2024.
Are there data centers in Mifflin County?
The SAVRN Data Center Map has no data center in Mifflin County.
Is Mifflin County adding jobs?
Employers counted 17,229 jobs in 2025 against 16,114 in 2019 (+6.9%, BLS QCEW). Construction went from 633 to 988.
Does Mifflin County have a data center moratorium?
No county-level measure is on record for Mifflin County. Pennsylvania has 36 local measures statewide, listed on the state page.