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New York›Biggest lakes›St. Lawrence County

NY · ranked by public data

The 25 Biggest Lakes in St. Lawrence County, New York

47 St. Lawrence County lakes cover at least 50 NHD-mapped acres, out of 247 documented lakes in the county.

  1. 17,856 ac
    7,856 acres

    St. Lawrence County, NY

    Black Lake

    limited
    44.54, -75.577,856 acres0 public access pointsSpecies pending

    7,856 acres

  2. 26,909 ac
    6,909 acres

    St. Lawrence County, NY

    Cranberry Lake

    limited
    44.13, -74.896,909 acres0 public access pointsSpecies pending

    6,909 acres

  3. 3716 ac
    716 acres

    St. Lawrence County, NY

    Chaumont Pond

    limited
    44.22, -74.96716 acres0 public access pointsSpecies pending

    716 acres

  4. 4586 ac
    586 acres

    St. Lawrence County, NY

    Warm Brook Flow

    limited
    44.52, -74.93586 acres0 public access pointsSpecies pending

    586 acres

  5. 5539 ac
    539 acres

    St. Lawrence County, NY

    Hickory Lake

    limited
    44.47, -75.52539 acres0 public access pointsSpecies pending

    539 acres

  6. 6535 ac
    535 acres

    St. Lawrence County, NY

    Mud Lake

    limited
    44.50, -75.46535 acres0 public access pointsSpecies pending

    535 acres

  7. 7432 ac
    432 acres

    St. Lawrence County, NY

    Massawepie Lake

    limited
    44.26, -74.65432 acres0 public access pointsSpecies pending

    432 acres

  8. 8409 ac
    409 acres

    St. Lawrence County, NY

    Lake Ozonia

    limited
    44.60, -74.61409 acres0 public access pointsSpecies pending

    409 acres

  9. 9402 ac
    402 acres

    St. Lawrence County, NY

    Yellow Lake

    limited
    44.33, -75.60402 acres0 public access pointsSpecies pending

    402 acres

  10. 10398 ac
    398 acres

    St. Lawrence County, NY

    Horseshoe Lake

    limited
    44.13, -74.62398 acres0 public access pointsSpecies pending

    398 acres

RankLakeCountyAcresMax depth
11Trout LakeSt. Lawrence371 ac—
12Joe Indian PondSt. Lawrence357 ac—
13Grass LakeSt. Lawrence341 ac—
14Lower LakeSt. Lawrence329 ac—
15Sylvia LakeSt. Lawrence318 ac—
16Hitchins PondSt. Lawrence265 ac—
17Pleasant LakeSt. Lawrence236 ac—
18Lake MarianSt. Lawrence234 ac—
19Star LakeSt. Lawrence216 ac—
20Grass River FlowSt. Lawrence185 ac—
21Bridge Brook PondSt. Lawrence183 ac—
22Jordan LakeSt. Lawrence179 ac—
23Trout PondSt. Lawrence156 ac—
24Eagle Crag LakeSt. Lawrence154 ac—
25Mount Arab LakeSt. Lawrence123 ac—

Methodology

How this list is built

  • Ranked by surface area computed from USGS National Hydrography Dataset (NHD) lake polygons — consistent federal geometry, not state-documented acreage; figures can differ modestly from traditionally cited ones.
  • The Great Lakes and Lake Champlain are excluded — Champlain spans New York, Vermont, and Québec, so its full surface would overstate a New York ranking.
  • Lakes whose mapped polygon could not be confidently matched are excluded rather than guessed.
  • Lakes under 50 acres are excluded from rankings.
  • Public access inventories are not yet tracked for New York here, so access is never shown or ranked.

FAQ

St. Lawrence County lake records

What is the biggest lake in St. Lawrence County?

Black Lake — Black Lake in St. Lawrence County is the biggest lake within St. Lawrence County by USGS NHD surface area, at 7,856 acres (Lake Champlain, shared with Vermont and Québec, is excluded).

Biggest lakes statewideAll St. Lawrence County lakes

Source data: USGS National Hydrography Dataset lake polygons as aggregated by LakeList. NHD-computed area can differ modestly from traditionally cited acreages.Lake outlines are shoreline shapes from LakeList and the USGS National Hydrography Dataset; they illustrate a lake's form and are not depth or navigation charts.