Marion County Power Outage History
2019–2025 · Missouri
Top 20% most reliable nationally — infrequent, short outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jan 1, 2021 | 30 hrs | 1,723 (9%) | Winter Storm |
| Aug 23, 2020 | 1 hrs | 1,611 (9%) | Unnamed event |
| Jul 10, 2021 | 19 hrs | 777 (4%) | Thunderstorm Wind |
| Aug 30, 2022 | 3 hrs | 738 (4%) | Thunderstorm Wind |
| Jan 4, 2021 | 2 hrs | 717 (4%) | Winter Storm |
Over the 7 years from 2019 to 2025, Marion County recorded 167 distinct power outage events, averaging 1.5 hours per event.
The single worst outage on record in Marion County started January 1, 2021 (Winter Storm), lasting 30 hours and leaving up to 1,723 customers without power (9% of the county) at its peak.
January has historically been the worst month for outages in Marion County, with 21 events recorded during that month across the dataset.
Based on this history, Marion County earns a Reliability Grade of A, placing it in the 96th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Marion County's outage profile
See more picks in our Best Small Power Stations (Under 1,000Wh) roundup.
Outage-prep kit
See our outage-prep guides.
Similar counties in Missouri
Counties with the closest reliability grade and national percentile to Marion County.
| County | Grade | National percentile |
|---|---|---|
| Boone County | A | 97th |
| Putnam County | A | 96th |
| McDonald County | A | 97th |
| Mercer County | A | 98th |
| Callaway County | A | 95th |
FAQ
How often does power go out in Marion County?
Between 2019 and 2025, Marion County recorded 167 outage events, averaging 1.5 hours each.
What is Marion County's reliability grade?
Marion County has a Reliability Grade of A, in the 96th national percentile.
What was the worst power outage in Marion County?
The worst outage on record started January 1, 2021 (Winter Storm), lasting 30 hours and affecting up to 1,723 customers.