Skip to main content

Lewis County, New York

Lewis County profile, demographic data, and geographic information.

Lewis County is a county located in New York, United States of America. As of official census estimates, it has a reported population of 26,479. The land area covers 1,276.31 sq mi. [1]

Local Government Administration U.S. Census Bureau GMAF

County Of Lewis County
Official Title: County Manager
Address: 7660 N STATE ST, LOWVILLE NY 13367-1562

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population (2025 PEP Estimate) 26,479 — 2025 / Census
Median Age 41.9 yrs ±0.4 2020-2024 / Census ACS 5-Year 2024
Total Households 11,110 ±274 2020-2024 / Census ACS 5-Year 2024
Source: U.S. Census Bureau (PEP, ACS 5-Year).

Housing & Real Estate Profile

Housing Metric Estimate / Value Margin of Error
Total Housing Units 15,637 ±55
Occupied Housing Units 11,110 ±274
Vacant Housing Units 4,527 ±258
Median Home Value $166,100 ±$5,193
Median Gross Rent $837 ±$57
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $68,182 ±$3,903
Per Capita Income $33,677 ±$1,122
Poverty Rate 12.3% ±1.4%
Population Below Poverty Level 3,254 ±379
Unemployment Rate 5.2% ±1.2%
Civilian Labor Force, Employed 11,753 ±332
Broadband Internet Rate 86.5% ±1.8%
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Climate & Weather Observations

NOAA Monthly Climate Normals

Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at LOWVILLE, NY US, located 2.1 miles from Lewis County. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 26.6° 8.0° 17.3° 3.47" 35.6"
February 28.8° 9.4° 19.1° 2.59" 29.6"
March 37.5° 18.5° 28.0° 2.65" 15.8"
April 52.0° 31.6° 41.8° 3.11" 4.1"
May 65.8° 43.2° 54.5° 3.39" 0.2"
June 74.0° 52.7° 63.4° 3.72" 0.0"
July 78.4° 57.3° 67.8° 3.48" 0.0"
August 77.2° 55.2° 66.2° 3.80" 0.0"
September 70.1° 47.2° 58.6° 3.49" 0.0"
October 56.7° 37.5° 47.1° 4.56" 0.4"
November 44.0° 27.5° 35.7° 3.75" 9.4"
December 32.5° 16.8° 24.7° 3.82" 31.9"
Source: NOAA U.S. Climate Normals (1991–2020).

Local Weather Forecast

Weather forecast data is currently unavailable in the local cache.

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 36049. • Official Source Dataset →
  2. Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
  3. Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
  4. Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.