When will the power be back in Derby, CT?
Our restoration forecast is independent and unofficial, never the utility's commitment. How it works · How accurate it has been
Derby is a city of about 12,915 residents in New Haven County.
United Illuminating has reported outages for Derby by name on its own public outage map (most recently observed 2026-09-18) — so when Derby 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 Derby:
Checking a ZIP goes straight to the address-level view for that area.
Around Derby: the closest other places we track are Ansonia, about 1 miles to the northeast; Shelton, about 3 miles to the southwest; West Haven, about 7 miles to the southeast; and Milford, about 7 miles to the south. Also nearby: New Haven (8 mi E), Bridgeport (11 mi SW), Naugatuck (11 mi N), Waterbury (16 mi N), Danbury (21 mi W), Meriden (21 mi NE), Norwalk (24 mi SW) and Bristol (26 mi N).
Looking further out, the nearest place we track is: north toward Torrington (35 mi); northeast toward Middletown (27 mi); east toward New London (51 mi); south toward Patchogue, NY (39 mi); southwest toward Stamford (30 mi); and west toward Beacon, NY (47 mi).
Who serves Derby?
We track live outage data from Eversource and United Illuminating ↗ in New Haven County — but several utilities can serve one county, so confirm your own by searching your address on the live map. Town of Wallingford also serves parts of New Haven County — we don't yet read its own live outage map.
Derby's last tracked outage began Sep 27, peaked at 111 customers out, and was restored in 5 hours. Across the 3 outages tracked here, the typical (median) restoration ran 2 hours.
- Sep 27 — 111 customers out, restored in 5 hours
- Sep 26 — 122 customers out, restored in 2 hours
- Sep 10 — 88 customers out, restored in an hour
County context: across all of New Haven County, federal outage records (EAGLE-I, 2014–2025) show outages of 200+ customers typically restored in about 3.3 hr. The full record for New Haven County
Common questions
When will my power be back on in Derby, CT?
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 Derby's own record: across the 3 outages this site has tracked here, the typical (median) restoration ran 2 hours — the outage-history panel above lists them.
How do I check the power outage status in Derby, CT?
To check your own street, search a Derby ZIP code — 06418 — and the map opens on that area.
