Which electric company serves my address in District of Columbia?

Your electric bill names it. Service territory is filed by county, so MassOutage lists the utilities serving each District of Columbia county; usually only one of them serves a given address, and a utility can tell you whether it serves yours.

Who do I call to report a power outage in District of Columbia?

Your electric utility. MassOutage has no outage contact on file for it; check your bill or the utility's website. For a downed power line, stay at least 35 feet away and call 911.

Electric companies in District of Columbia

1 electric utility serves District of Columbia, according to US EIA-861 service-territory filings and live outage feeds. The largest by customers is Potomac Electric Power Co, with about 352,369 customers in District of Columbia (US EIA-861, 2025). About 12% of the customers on file (42,319) buy their electricity from a separate retail supplier; the utility listed here still delivers it and restores outages.

Territory is filed by county, so a county can list several utilities; usually only one serves a given address, and your electric bill names it.

Find yours by ZIP code

Every electric utility in District of Columbia

Largest first, by customers on its lines in District of Columbia (US EIA-861, 2025). “Live” is whether MassOutage can see its outages.

Utility	Type	Customers	Counties	Live	Report an outage
Potomac Electric Power Co	Investor Owned	352,369	1	Live · county	-

Electric utilities by county

Each county's utilities, largest in the state first. The county name opens its live outage page.

District of Columbia: Potomac Electric Power Co

Electric companies in District of Columbia: FAQ

How many electric companies serve District of Columbia?: 1 electric utility serves District of Columbia, according to US EIA-861 service-territory filings and live outage feeds.
What is the largest electric company in District of Columbia?: Potomac Electric Power Co, with about 352,369 customers in District of Columbia (US EIA-861, 2025).
Which electric company serves my address in District of Columbia?: Your electric bill names it. Service territory is filed by county, so MassOutage lists the utilities serving each District of Columbia county; usually only one of them serves a given address, and a utility can tell you whether it serves yours.
Who do I call to report a power outage in District of Columbia?: Your electric utility. MassOutage has no outage contact on file for it; check your bill or the utility's website. For a downed power line, stay at least 35 feet away and call 911.

Live power outages in District of Columbia →

Data from EIA Form 861 (utility reliability), every source we read. Service territory and customer counts are each utility's own EIA-861 filing; a utility a live outage feed has reported in a county is listed there too.