Datacenter Sites in Mifflin County, Pennsylvania
Mifflin County has 11 scored datacenter candidate sites averaging 53.2/100 DC Readiness, with a catalogued aggregate of 800 MW. FEMA rates local natural-hazard risk as "Relatively Moderate". The county has a datacenter tax incentive on record.
At a glance
Mifflin County, Pennsylvania has 11 scored datacenter candidate sites averaging 53.2/100 DC Readiness, roughly in line with the Pennsylvania average of 52.1. It ranks 61st of 65 Pennsylvania counties by number of sites and 21st by average score. The top-scoring site is YEAGERTOWN at 60.3/100.
Site-selection context for Mifflin County
Incentive detail: Keystone Opportunity Zone/KOEZ sales and property tax exemptions in designated areas.
How does Mifflin County compare with other counties in Pennsylvania?
By number of scored sites, Mifflin County ranks 61st of the 65 Pennsylvania counties with a county page, holding 0.2% of the state's 6,497 sites. Its average DC Readiness of 53.2/100 ranks 21st in the state and is roughly in line with the national average of 53.0. Nationally it has the 2327th-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 3 score 55 or higher.
What types of datacenter sites are in Mifflin County?
Former Mine sites are the most common (4, 36% of the county's inventory), followed by substation-adjacent (4) and industrial (2). Site type reflects how the parcel was identified — next to a substation, on a former mine or brownfield, on industrial or federal excess land — and is scored on the same 14 factors either way.
What are power cost, hazard, water and fiber conditions in Mifflin County?
Industrial electricity averages 9.28¢/kWh and commercial 11.23¢/kWh. FEMA's National Risk Index rates the county "Relatively Moderate" (28). WRI water stress is low. 6 fiber providers report service in the county. The climate runs 800 cooling degree days a year with a mean temperature of 50°F. Land is valued around $7,840 an acre.
By site type
Top datacenter sites in Mifflin County
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| YEAGERTOWN | Substation-Adjacent | 230 kV | 300 MW | 3.6 yrs | 60.3 |
| LEWISTOWN | Substation-Adjacent | 230 kV | 300 MW | 3.6 yrs | 60.2 |
| EC FFE Mifflin County | Greenfield | — | — | 3.6 yrs | 56.7 |
| TAP139242 | Substation-Adjacent | 115 kV | 100 MW | 3.6 yrs | 54.7 |
| UNKNOWN124980 | Substation-Adjacent | 115 kV | 100 MW | 3.6 yrs | 54.6 |
| Corkin's property | Industrial | — | — | 3.6 yrs | 49.9 |
| Mine Site | Former Mine | — | — | 3.6 yrs | 49.9 |
| MCIDC Plaza | Industrial | — | — | 3.6 yrs | 49.8 |
| Mine Site | Former Mine | — | — | 3.6 yrs | 49.7 |
| Mine Site | Former Mine | — | — | 3.6 yrs | 49.7 |
| Mine Site | Former Mine | — | — | 3.6 yrs | 49.7 |
Every scored site in Mifflin County
All 11 sites, best first.
- YEAGERTOWN · 60.3
- LEWISTOWN · 60.2
- EC FFE Mifflin County · 56.7
- Substation-Adjacent site · 9ade369a · 54.7
- Substation-Adjacent site · bf7151bf · 54.6
- Corkin's property · 49.9
- Mine Site · 2d5acaa5 · 49.9
- MCIDC Plaza · 49.8
- Mine Site · dfbd9373 · 49.7
- Mine Site · 06f1ff05 · 49.7
- Mine Site · 92f96e34 · 49.7
Mifflin County datacenter FAQ
How many datacenter sites are in Mifflin County?
11 scored datacenter candidate sites, averaging 53.2/100 DC Readiness. That is the 61st-most of 65 Pennsylvania counties with five or more sites.
What is the highest-scoring datacenter site in Mifflin County?
YEAGERTOWN scores 60.3/100 DC Readiness, the highest of the 11 scored sites in Mifflin County (a substation-adjacent site).
Does Mifflin County offer datacenter tax incentives?
Keystone Opportunity Zone/KOEZ sales and property tax exemptions in designated areas.
What is the natural-hazard risk in Mifflin County?
FEMA's National Risk Index rates Mifflin County as "Relatively Moderate" (score 28).
What are industrial electricity rates in Mifflin County?
Average industrial electricity is 9.28¢/kWh and commercial is 11.23¢/kWh in Mifflin County.
More in Pennsylvania
- All datacenter sites in Pennsylvania· 6,497 sites
- Operating datacenters in Pennsylvania
- Electric substations in Pennsylvania
- Allegheny County· 411 sites · avg 56.5
- Schuylkill County· 409 sites · avg 50.1
- Philadelphia County· 381 sites · avg 56.3
- Westmoreland County· 313 sites · avg 51.0
- Clearfield County· 265 sites · avg 50.0
- Somerset County· 264 sites · avg 48.3
- Former Mine sites in Pennsylvania
- Substation-Adjacent sites in Pennsylvania
About this data
Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published November 13, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Datacenter candidate sites in Mifflin County, Pennsylvania”, https://gridcensus.com/datacenter-sites/pennsylvania/mifflin-county (data as of November 13, 2026).
Dataset updated . Screening estimates derived from public data sources.
Go deeper than the public screen
Every site and score for Mifflin County, Pennsylvania is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.