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608-acre Mamaroneck Harbor fishing map with NOAA BlueTopo survey contours (94.08% measured, 99.32% assessed), charted rock and wreck structure, regional fish-survey occurrence, sourced forage timing and verified public access. The water tops out around 21 ft. The depth chart is built from real agency bathymetry referenced to NAVD88; directly measured coverage remains distinguished from source interpolation. The channels, holes and drop-offs come from the source data, not a distance-from-shore model. Below is the species-by-species picture, pulled from the same data the map uses.
Traced from the shoreline, Mamaroneck Harbor runs 608 acres with 11 miles of edge, broken up by 6 islands. An index of 3.2 puts the bank firmly in maze territory: point after pocket after cove, every one a casting target. 80% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. The basin spans about 2.1 mi end to end and 1.5 mi across at its widest. The nearest mapped water is Larchmont Harbor, 1 mi to the southwest.
Come spring, look for striped bass tight to the bank in 5 to 20 ft. Expect a summer slide to 6 to 21 ft, then a winter hold in 6 to 21 ft. Start at Surveyed channel edge. It's a drop-off holding about 13 ft of water and rates prime come summer. Prime time lands in early morning and the evening. A flutter spoon (deep) or an umbrella rig (trolled) is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Surveyed channel edge (13 ft) | Bucktail jig + trailer, Walking topwater (dawn) |
| Summer | 6 to 21 ft | dawn & dusk | Surveyed channel edge (13 ft) | Flutter spoon (deep), Umbrella rig (trolled) |
| Fall | 6 to 21 ft | dawn & dusk | Surveyed channel edge (13 ft) | Topwater walker, Jerkbait |
| Winter | 6 to 21 ft | midday | Surveyed channel edge (13 ft) | Alabama rig (slow), Flutter spoon |
The spring pattern is a shallow one: bluefish in 3 to 20 ft. Midsummer fish sit out in 4 to 21 ft before dropping to 6 to 21 ft for winter. The spot to know is Surveyed channel edge, a drop-off in about 13 ft of water that rates prime for bluefish in summer. Plan around early morning and the evening in the warm months. Summer baits: a popper (early/late) or a metal jigs in the rips gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 20 ft | dawn & dusk | Surveyed channel edge (13 ft) | Metal (Hopkins/Kastmaster), Pencil popper |
| Summer | 4 to 21 ft | dawn & dusk | Surveyed channel edge (13 ft) | Popper (early/late), Metal jigs in the rips |
| Fall | 3 to 21 ft | dawn & midday | Surveyed channel edge (13 ft) | Pencil popper, Big metal |
| Winter | 6 to 21 ft | midday | Surveyed channel edge (13 ft) | Metal jig worked slow (southern waters) |
Come spring, look for summer flounder (fluke) tight to the bank in 4 to 21 ft. Through summer count on 5 to 21 ft; the winter hold is 6 to 21 ft. If you only fish one area, make it Surveyed channel edge: a drop-off around 13 ft that scores prime in summer. Best bite is midday and early morning. A bucktail (1-3 oz by drift speed) or a gulp grub on jighead is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 21 ft | midday & dawn | Surveyed channel edge (13 ft) | Bucktail + Gulp swimming mullet, Hi-lo rig + squid strip |
| Summer | 5 to 21 ft | midday & dawn | Surveyed channel edge (13 ft) | Bucktail (1-3 oz by drift speed), Gulp grub on jighead |
| Fall | 6 to 21 ft | midday | Surveyed channel edge (13 ft) | Heavier bucktail on the lumps, Big Gulp 6" grub |
| Winter | 6 to 21 ft | midday | Surveyed channel edge (13 ft) | Slow bottom rig + strip |
Come spring, look for black sea bass tight to the bank in 5 to 21 ft. Through summer count on 5 to 21 ft; the winter hold is 6 to 21 ft. Start at NOAA charted underwater rock. It's a rock pile holding about 8 ft of water and rates prime come spring. Prime time lands in midday and early morning. A bucktail + grub or a diamond jig + squid teaser is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 21 ft | midday & dawn | NOAA charted underwater rock (8 ft) | Hi-lo rig + squid, 1-2 oz bucktail + Gulp |
| Summer | 5 to 21 ft | midday & dawn | NOAA charted underwater rock (8 ft) | Bucktail + grub, Diamond jig + squid teaser |
| Fall | 5 to 21 ft | midday | NOAA charted underwater rock (8 ft) | 3-4 oz vertical jig (deep), Double-teaser rig |
| Winter | 6 to 21 ft | midday | NOAA charted underwater rock (8 ft) | Heavy hi-lo rig on deep wrecks |
In spring, tautog (blackfish) run shallow here, mostly 4 to 21 ft. Summer keeps them at 6 to 21 ft, and they winter in 6 to 21 ft. Dangerous NOAA charted wreck is the standout, a wreck at roughly 9 ft, rated prime for spring tautog (blackfish). Time it for early morning. You won't need more than a 1/2-1 oz tog jig + crab most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 21 ft | midday & dawn | Dangerous NOAA charted wreck (9 ft) | Tog jig + green crab half, Bare jig + clam (early) |
| Summer | 6 to 21 ft | dawn | Dangerous NOAA charted wreck (9 ft) | 1/2-1 oz tog jig + crab |
| Fall | 4 to 21 ft | midday | Dangerous NOAA charted wreck (9 ft) | Tog jig + whole green crab, Old-school rig + double crab (deep) |
| Winter | 6 to 21 ft | midday | Dangerous NOAA charted wreck (9 ft) | Heavy jig + crab on deep structure |
Count 30 structure marks on this chart. The deepest, NOAA charted underwater rock, sits near 18 ft.
Access data: Village of Mamaroneck — adopted comprehensive plan. Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for New York waters are set by the New York DEC (saltwater fishing) — and special regulations can apply to Mamaroneck Harbor specifically, so confirm the current rules before you fish.
Check the official New York fishing regulations →
Mamaroneck Harbor is about 21 ft (6 m) deep at its deepest point. The depth chart is built from real agency bathymetry referenced to NAVD88; directly measured coverage remains distinguished from source interpolation. The contours reflect measured and quality-assessed source depths.
Anglers target striped bass, bluefish, summer flounder (fluke), black sea bass, tautog (blackfish) on Mamaroneck Harbor.
Surveyed channel edge is the top-rated area: a drop-off in about 13 ft of water that rates prime for summer flounder (fluke) in summer. Scroll up to the map for the complete spot list by species and season.
For striped bass, the summer bite is best in early morning and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Mamaroneck Harbor is regulated by the New York DEC (saltwater fishing). Check the official New York regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Larchmont Harbor 1 mi · Echo Bay 3 mi · Port Chester Harbor 4 mi · Captain Harbor 7 mi, CT · City Island Harbor 7 mi · Hempstead Harbor 8 mi · Manhasset Bay 8 mi · Eastchester Bay 8 mi · Greenwich Cove 9 mi, CT · Hudson River - Yonkers to Tappan Zee 10 mi · Kensico Reservoir 11 mi · Stamford Harbor 11 mi, CT
See how Mamaroneck Harbor stacks up: best striped bass lakes in New York · best summer flounder (fluke) lakes in New York · best bluefish lakes in New York · best black sea bass lakes in New York
Browse all New York fishing maps or see every water on DepthScout. Bathymetry credit: NOAA BlueTopo (NAVD88; 94% measured, 5% source-interpolated). How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.