Power outages in Sherman County, TX

We don't have a live outage feed for the utilities serving Sherman County yet. Southwestern Public Service Co, Tri-County Electric Coop, Inc (OK) and Rita Blanca Electric Coop, Inc serve this county.

Right now

No live outage data for Sherman County yet.

Southwestern Public Service Cono live feed
iThis utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.
Serves this county, per federal utility records
iFrom EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.
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Tri-County Electric Coop, Inc (OK)no live feed
iThis utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.
Serves this county, per federal utility records
iFrom EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.
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Rita Blanca Electric Coop, Incno live feed
iThis utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.
Serves this county, per federal utility records
iFrom EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.
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Outage map

No live outage feed here yet
County outline

Outage history in Sherman County

2014–2025 record

Sherman County averaged 4 significant outages a year in 2023–2025, fewer than most Texas counties.

In the 12 months to December 2025, there were 2. Half were over within 3 hours; the longest lasted 5 hours, starting August 9, 2025.

The largest on record began August 6, 2023, with 4,450 customers out at once.

Outages are most common in July.

4significant outages a year (2023–2025)
iAt 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
iHalf of significant outages here ended sooner than this, and half lasted longer.
34 hourslongest on record (April 2017)
4,450most customers out at once
Largest events (start)Peak outLasted
iHow long this area stayed at or above the significant-outage line, not how long any one home was without power.
Customer-hours
iCustomers out multiplied by hours out, added up over the event. 1,000 customers out for 3 hours is 3,000 customer-hours.
August 6, 20234,45016 hours7,510
December 27, 20181,6009.5 hours4,636
June 20, 20201,3106 hours3,422
June 13, 20231,2783.5 hours2,151
August 9, 20251,2515 hours5,881

Recorded outages from EAGLE-I, Oak Ridge National Laboratory (CC BY 4.0).

iFrom 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.