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New York›Biggest lakes›Lewis County

NY · ranked by public data

The 20 Biggest Lakes in Lewis County, New York

20 Lewis County lakes cover at least 50 NHD-mapped acres, out of 116 documented lakes in the county.

  1. 11,416 ac
    1,416 acres

    Lewis County, NY

    Lake Bonaparte

    limited
    44.15, -75.391,416 acres0 public access pointsSpecies pending

    1,416 acres

  2. 2334 ac
    334 acres

    Lewis County, NY

    Brantingham Lake

    limited
    43.70, -75.27334 acres0 public access pointsSpecies pending

    334 acres

  3. 3331 ac
    331 acres

    Lewis County, NY

    Beaver Lake

    limited
    43.87, -75.16331 acres0 public access pointsSpecies pending

    331 acres

  4. 4313 ac
    313 acres

    Lewis County, NY

    Effley Falls Pond

    limited
    43.92, -75.26313 acres0 public access pointsSpecies pending

    313 acres

  5. 5223 ac
    223 acres

    Lewis County, NY

    Narrow Lake

    limited
    44.14, -75.45223 acres0 public access pointsSpecies pending

    223 acres

  6. 6157 ac
    157 acres

    Lewis County, NY

    High Falls Pond

    limited
    43.93, -75.37157 acres0 public access pointsSpecies pending

    157 acres

  7. 7149 ac
    149 acres

    Lewis County, NY

    Long Pond

    limited
    43.98, -75.19149 acres0 public access pointsSpecies pending

    149 acres

  8. 8142 ac
    142 acres

    Lewis County, NY

    Francis Lake

    limited
    43.85, -75.17142 acres0 public access pointsSpecies pending

    142 acres

  9. 9117 ac
    117 acres

    Lewis County, NY

    Chase Lake

    limited
    43.76, -75.30117 acres0 public access pointsSpecies pending

    117 acres

  10. 10111 ac
    111 acres

    Lewis County, NY

    Taylorville Pond

    limited
    43.93, -75.30111 acres0 public access pointsSpecies pending

    111 acres

RankLakeCountyAcresMax depth
11Indian PondLewis109 ac—
12Sand PondLewis85 ac—
13Crystal LakeLewis83 ac—
14Stony LakeLewis71 ac—
15Sears PondLewis69 ac—
16Pine LakeLewis67 ac—
17Copper LakeLewis60 ac—
18South Greek LakeLewis58 ac—
19Mud PondLewis52 ac—
20Bullhead PondLewis51 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

Lewis County lake records

What is the biggest lake in Lewis County?

Lake Bonaparte — Lake Bonaparte in Lewis County is the biggest lake within Lewis County by USGS NHD surface area, at 1,416 acres (Lake Champlain, shared with Vermont and Québec, is excluded).

Biggest lakes statewideAll Lewis 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.