Lewis County, New York
Located in New York, Lewis County has a population of 26,607 residents and a median age of 41.9 years, making it the #1,593 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 12.3%. The median home value is $166,100, and the median household income is $68,182, which is 9% below the national median.
Demographics
Lewis County has a population of 26,607, making it the #1,593 most populous county in the US. The median age is 41.9 years, which is 7.7% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Lewis County is $68,182, ranking #1,325 out of 3,222 counties — 9.3% below the national median. The poverty rate is 12.3% and unemployment stands at 5.1%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Lewis County is $166,100 (-41.1% vs national). Renters pay a median of $837/mo and the homeownership rate is 80.2%.
Median Home Value Trend
Rankings →Household Type
Education
In Lewis County, 18.6% of adults age 25+ hold a bachelor's degree or higher, which is 44.9% below the national average, ranking #2,251 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Lewis County is 78.9 years. 15.6% of adults report poor or fair health and 5.4% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
17.6% of adults in Lewis County smoke , 35.9% are obese , and 24.9% report excessive drinking. The drug overdose death rate is 12.6 per 100,000.
Adult Smoking Trend
Safety
The suicide rate is 22.6 per 100,000. Motor vehicle deaths occur at a rate of 9.2 per 100,000.
Suicide Rate Trend
Families & Children
15.3% of children in Lewis County live in poverty . The teen birth rate is 14.1 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Lewis County is 64.6%. The mean commute time is 26.1 min, which is 5.4% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Lewis County voted Republican with a margin of 44.4%. The vote was 27.8% Dem / 72.2% Rep. Compared to 2020, the margin shifted 5.2 toward Republicans .
Vote Share Over Time
About Lewis County, New York
Lewis County, New York has a total population of 26,607, making it the 1,593rd most populous county in the United States. The median age in Lewis County is 41.9 years, which is 7.7% above the national median of 38.9 years.
The median household income in Lewis County is $68,182, which ranks #1,325 of 3,222 counties nationwide. This is 9.3% below the national median of $75,149. The poverty rate is 12.3%, lower than the national rate of 12.6%. The unemployment rate stands at 5.1%.
The median home value in Lewis County is $166,100, 41.1% below the national median. Renters in Lewis County pay a median gross rent of $837 per month. The homeownership rate is 80.2%, compared to the national rate of 64.4%.
In Lewis County, 18.6% of residents aged 25 and older hold a bachelor's degree or higher, 44.9% below the national average of 33.7%. Health insurance coverage stands at 94.3% of the population. The average commute time for workers is 26.1 min.
Lewis County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 93.4% of the population, followed by Two or More Races (3.2%) and Hispanic or Latino (1.8%).
All data for Lewis County, New York comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.