Porter County Power Outage History
2015–2025 · Indiana
Worse than average — more frequent or longer outages than most counties. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Sep 29, 2024 | 0 hrs | 66,462 (79%) | Unnamed event |
| Sep 29, 2024 | 1 hrs | 66,462 (79%) | Unnamed event |
| Sep 22, 2024 | 1 hrs | 66,462 (79%) | Unnamed event |
| Sep 29, 2024 | 0 hrs | 66,462 (79%) | Unnamed event |
| Sep 1, 2024 | 4 hrs | 30,133 (36%) | Unnamed event |
Over the 11 years from 2015 to 2025, Porter County recorded 1,006 distinct power outage events, averaging 3.3 hours per event.
The single worst outage on record in Porter County started September 29, 2024, lasting 0 hours and leaving up to 66,462 customers without power (79% of the county) at its peak.
August has historically been the worst month for outages in Porter County, with 148 events recorded during that month across the dataset.
Based on this history, Porter County earns a Reliability Grade of D, placing it in the 33rd percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Porter County's outage profile
See more picks in our Best Dual-Fuel Portable Generators for Power Outages roundup.
Champion Power Equipment 4375-Watt Dual Fuel RV Ready Portable Generator with Free 3-Year Warranty
Outage-prep kit
See our outage-prep guides.
Similar counties in Indiana
Counties with the closest reliability grade and national percentile to Porter County.
| County | Grade | National percentile |
|---|---|---|
| Clay County | D | 33rd |
| Vermillion County | D | 34th |
| Pike County | D | 32nd |
| Monroe County | D | 30th |
| LaPorte County | D | 30th |
FAQ
How often does power go out in Porter County?
Between 2015 and 2025, Porter County recorded 1,006 outage events, averaging 3.3 hours each.
What is Porter County's reliability grade?
Porter County has a Reliability Grade of D, in the 33rd national percentile.
What was the worst power outage in Porter County?
The worst outage on record started September 29, 2024, lasting 0 hours and affecting up to 66,462 customers.