Is the power out in 21664?
Live answer for ZIP 21664 (Secretary 100% of the ZIP; Dorchester County), updated every 10 minutes.
Right now in 21664
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Outage map
ZIP 21664Dorchester County
Outage history in Dorchester County, which includes 21664
2014–2025 recordDorchester County averaged 23.7 significant outages a year in 2023–2025, about typical for Maryland counties.
In the 12 months to December 2025, there were 21. Half were over within 45 minutes; the longest lasted 10 hours, starting July 20, 2025.
The largest on record began August 4, 2020, with 7,837 customers out at once.
Outages are most common in August.
23.7significant outages a year (2023–2025)
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At least 1% of the area's customers, and at least 100, without power at the same time. Outages less than 6 hours apart count as one.1.5 hourstypical (median) length
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Half of significant outages here ended sooner than this, and half lasted longer.27 hourslongest on record (August 2020)
7,837most customers out at once
| Largest events (start) | Peak out | LastediHow long this area stayed at or above the significant-outage line, not how long any one home was without power. | Customer-hoursiCustomers out multiplied by hours out, added up over the event. 1,000 customers out for 3 hours is 3,000 customer-hours. |
|---|---|---|---|
| August 4, 2020 | 7,837 | 27 hours | 48,416 |
| January 29, 2025 | 6,528 | 3 hours | 19,584 |
| August 2, 2017 | 5,611 | 2.5 hours | 4,170 |
| July 1, 2021 | 4,905 | 9 hours | 12,839 |
| August 18, 2016 | 4,138 | 4.5 hours | 7,840 |
Recorded outages from EAGLE-I, Oak Ridge National Laboratory (CC BY 4.0).i
From EAGLE-I, Oak Ridge National Laboratory's record of utility outage data every 15 minutes since 2014 (CC BY 4.0). It covered about 9 in 10 U.S. customers.
This ZIP is in
- Secretary 100% of the ZIP
- Dorchester County
- Maryland