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Deer Lake

Killingworth, Connecticut — Lower Connecticut River Valley Planning Region.

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36Surface acres
1.3 miShoreline trails

Surface area: The USGS National Hydrography Dataset outline (NHD Permanent ID 122165006).

Location & fast facts

Where Deer Lake is in Connecticut

The red circle marks Deer Lake.

Fast facts

About Deer Lake

  • Planning Region: Lower Connecticut River Valley
  • Town: Killingworth
  • Mapped as: Lake or pond (USGS National Hydrography Dataset)
  • Distance: about 29 mi from Hartford and 18 mi from New Haven, straight-line (not driving distance)

Towns and planning regions: U.S. Census Bureau boundaries overlaid on the USGS lake outline.

Fishing in Connecticut

Official CT DEEP pages. Rules and fees change; check before you go.

Lake map

Deer Lake shoreline

¼ mileN

No public access sites are listed for this water in the CT DEEP boat launches data.

Shoreline trail

Shoreline: USGS National Hydrography Dataset (NHD Waterbody, Permanent ID 122165006), public domain. State outline: U.S. Census Bureau TIGERweb. Points: CT DEEP boat launches. Dashed trails: © OpenStreetMap contributors (ODbL). Interactive map: Leaflet with © OpenStreetMap contributors. Not for navigation.

Shoreline trails

1.3 miTrail within 80 m of shore
About 30%Of the shoreline
NoLoops the whole lake
North and south shoresWhere

OpenStreetMap shows about 1.3 mi of public hiking and walking trail within about 80 m (260 ft) of the Deer Lake shoreline, mostly along the north and south shores.

Trails along the shore

The dashed brown line on the lake map shows these trails. We include paths, footways and marked trails that OpenStreetMap doesn't mark as private, and leave out roads, sidewalks and snowmobile corridors. Mapped trails can still cross private land or close for the season, and not every trail is mapped, so follow posted signs.

Trails: © OpenStreetMap contributors, available under the Open Database License (ODbL). Map data as of Oct 9, 2026. Trail lengths count only the parts within about 80 m of the USGS NHD lake outline.

Campgrounds near Deer Lake

We found 6 campgrounds and RV parks within 15 miles of Deer Lake. Distances are straight-line from the nearest point on the shoreline, so driving distance is longer.

All campgrounds & RV parks in Connecticut

Green tent icons on the lake map mark campgrounds near the shore, and the interactive map shows the closest 12. Amenities are listed only where a source records them; call or check the campground's website before you go, since seasons and rates change every year.

Campground data: OpenStreetMap contributors (ODbL). Pulled Oct 12, 2026.

Conditions right now

Air temperature & conditions (nearest NWS station)Loading…
Fetching the latest National Weather Service observation…

Live from the National Weather Service API for the lake's coordinates (41.3457, -72.5875). The nearest station may be several miles away. NWS forecast for Deer Lake. No live water-temperature sensor is shown because we haven't found a public one for this lake.

Sun, moon & best fishing times

Sun & moon at Deer Lake

Best fishing times

Major periodMinor periodDaylight

    Based on solunar theory, an estimate. Major periods (about 2 hours) center on when the moon is directly overhead or underfoot; minor periods (about 1 hour) center on moonrise and moonset. The 0–100 activity score rises during those periods and gets a boost near sunrise and sunset and around the new and full moon. Weather, water temperature and pressure often matter more. Sun and moon times are calculated in your browser from the lake's coordinates with standard astronomy formulas, shown in ET (America/New_York), and accurate to within a few minutes.

    Invasive species

    Reported on or near Deer Lake

    Clean, Drain, Dry. Remove plants and mud, drain all water, and dry your boat, trailer and gear before moving to another water.

    USGS Nonindigenous Aquatic Species database

    USGS records matched to this water by location (within about 150 m of the outline) or by the place name in the record. A record shows a sighting was reported; it doesn't prove the species is still there. As of Oct 10, 2026.

    Contact & official info

    Lakes & ponds nearby

    Straight-line distance between lake centers. All Connecticut lakes & ponds · All waters in Killingworth