When will the power be back in Portsmouth, NH?
Our restoration forecast is independent and unofficial, never the utility's commitment. How it works · How accurate it has been
Portsmouth is a city of about 22,938 residents in Rockingham County.
Eversource has reported outages for Portsmouth by name on its own public outage map (most recently observed 2026-09-18) — so when Portsmouth is affected, this page can show the city's own customers-out count and restoration time rather than only the county-wide total.
ZIP codes in Portsmouth:
Checking a ZIP goes straight to the address-level view for that area.
Around Portsmouth: the closest other places we track are Dover, about 10 miles to the northwest; Somersworth, about 14 miles to the north; Amesbury, MA, about 16 miles to the southwest; and Newburyport, MA, about 18 miles to the south. Also nearby: Rochester (19 mi NW); Haverhill, MA (24 mi SW); Sanford, ME (25 mi N); Gloucester, MA (30 mi S); Methuen, MA (30 mi SW); Lawrence, MA (31 mi SW); Manchester (34 mi W); and Beverly, MA (35 mi S).
Looking further out, the nearest place we track is: north toward Auburn, ME (76 mi); northeast toward Saco, ME (37 mi); south toward Salem, MA (38 mi); southwest toward Lowell, MA (40 mi); west toward Keene (77 mi); and northwest toward Laconia (50 mi).
Who serves Portsmouth?
We track live outage data from Eversource and New Hampshire Electric Cooperative in Rockingham County — but several utilities can serve one county, so confirm your own by searching your address on the live map. Unitil Energy Systems and Liberty Utilities also serve parts of Rockingham County — we don't yet read their own live outage maps.
Portsmouth's last tracked outage began Sep 30, peaked at 50 customers out, and was restored in an hour. Across the 3 outages tracked here, the typical (median) restoration ran 3 hours.
- Sep 30 — 50 customers out, restored in an hour
- Sep 27 — 60 customers out, restored in 3 hours
- Sep 3 — 748 customers out, restored in 4 hours
County context: across all of Rockingham County, federal outage records (EAGLE-I, 2014–2025) show outages of 200+ customers typically restored in about 2.8 hr. The full record for Rockingham County
Common questions
When will my power be back on in Portsmouth, NH?
It depends on the cause and how many crews are working; the live status at the top of this page shows the current outlook. For context from Portsmouth's own record: across the 3 outages this site has tracked here, the typical (median) restoration ran 3 hours — the outage-history panel above lists them.
How do I check the power outage status in Portsmouth, NH?
To check your own street, search a Portsmouth ZIP code — 03801, 03802, 03803 or 03804 — and the map opens on that area.
Does this page show Portsmouth specifically, or the whole county?
Both, and for Portsmouth we have the city-level view: Eversource has published outages for Portsmouth under its own name, most recently seen on 2026-09-18. When Portsmouth is affected, you get its own customers-out count and restoration time, with the Rockingham County county-wide total shown separately as context. Don't add the two together — the county figure already includes Portsmouth.
