Lewis County, New York Population 2026

Updated April 2026 · US Census ACS 2023 5-Year Estimates · 59th-largest in New York

The population of Lewis County, New York is 26,618 as of the 2023 American Community Survey, making it the 59th-largest county in New York. The median household income is $68,329, the median home value is $158,000, and the median age is 42.0.

The population of Lewis County has declined 1.9% since 2010 (27,072 → 26,570), a -0.13% annualized rate.

Lewis County within New York · Source: US Census TIGER/Line via us-atlas

26,618

Population

-0.13%

Annual growth

People / sq mi

$68,329

Median Income

$158,000

Median Home Value

Lewis County covers 1,276 sq mi of land at 20.9 people per square mile.

About Lewis County, NY

Lewis County is a county in New York with a population of 26,618. It ranks #59 among counties in New York by population. The median age is 42.0, older than the national median. The population is 50.7% male and 49.3% female.

The median household income in Lewis County is $68,329, below the US median of $74,580. 8.8% of residents live below the federal poverty level. Home values sit at a median of $158,000, with monthly rent averaging $821. The homeownership rate of 80.4% is higher than the national rate of 64.8%.

Educational attainment in Lewis County reflects 19.4% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 7.6% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 24.2 minutes each way.

Lewis County Population History (2010-2024)

The county of Lewis County had a population of 27,072 in 2010 and 26,570 in 2024, a -1.9% growth over 14 years. The peak was 27,190 in 2012. Average annual growth rate: -0.13%.

26,570

Population (2024)

27,072

Population (2010)

27,190

Peak (2012)

-0.13%

Avg Annual Growth

Year	Population	Change	Annual %	Source
2010	27,072	-	-	estimate
2011	27,021	-51	-0.19%	estimate
2012	27,190	+169	+0.63%	estimate
2013	27,092	-98	-0.36%	estimate
2014	27,085	-7	-0.03%	estimate
2015	26,824	-261	-0.96%	estimate
2016	26,656	-168	-0.63%	estimate
2017	26,606	-50	-0.19%	estimate
2018	26,503	-103	-0.39%	estimate
2019	26,329	-174	-0.66%	estimate
2020	26,557	+228	+0.87%	estimate
2021	26,721	+164	+0.62%	estimate
2022	26,602	-119	-0.45%	estimate
2023	26,584	-18	-0.07%	estimate
2024	26,570	-14	-0.05%	estimate

Race & Ethnicity

White	94.3%
Black or African American	0.9%
Asian	0.0%
Hispanic or Latino (any race)	0.6%
Two or More Races	0.0%

Age & Sex

42.0

Median Age

49.3%

Female

50.7%

Male

19.8%

Age 65+

Age Distribution

Under 5

5.9%

5–9

5.6%

10–14

7.3%

15–19

6.3%

20–24

5.4%

25–34

11.0%

35–44

11.7%

45–54

11.5%

55–59

6.6%

60–64

8.7%

65–74

11.9%

75–84

5.5%

85+

2.4%

Children (under 15): 18.8% · Seniors (65+): 19.8%

Income & Poverty

Median household income	$68,329$-16,249 vs state
Mean household income	$79,621
Per-capita income	$32,690
Poverty rate	8.8%-1.0% vs state
Unemployment rate	3.2%
Employment-to-population	55.8%

Top Industries by Employment

Professional & business services

26.3%

Construction

11.1%

Manufacturing

10.7%

Public administration

8.6%

Education & health care

6.6%

Agriculture

5.9%

Arts, entertainment & food

5.7%

Finance & real estate

5.1%

The largest employment sector in Lewis County is professional & business services, accounting for 26.3% of workers.

How residents commute

1.2%

Drive alone

4.6%

Carpool

75.7%

Public transit

7.6%

Work from home

24.2 min

Avg commute

Housing

$158,000$-245,000 vs state

Median home value

$821

Median rent

80.4%

Homeownership rate

15,572

Total housing units

70.4%

Occupied

29.6%

Vacant

19.6%

Renter-occupied

Social & access

95.1%

With health insurance

91.0%

With broadband internet

12.0%

Foreign-born

8.5%

Veterans (18+)

14.9%

With a disability

97.2%

Speak language other than English at home

Education

91.4%

High School+

19.4%

Bachelor's+

Largest cities in New York

New York (8,516,202)Buffalo (276,397)Rochester (209,720)Yonkers (209,529)Syracuse (146,211)Albany (100,081)New Rochelle (81,591)Cheektowaga (76,251)Mount Vernon (72,528)Schenectady (68,521)All New York cities →

Other counties in New York

Kings County (2,646,306)Queens County (2,330,124)New York County (1,627,788)Suffolk County (1,525,680)Bronx County (1,419,250)Nassau County (1,388,138)Westchester County (996,888)Erie County (950,044)Monroe County (754,068)Richmond County (492,734)All New York counties →

Part of New York

New York demographic profile All New York data →

Metro areas in New York

New York (19,756,722)Buffalo (1,161,385)Rochester (1,058,875)Albany (902,372)Kiryas Joel (700,984)Syracuse (657,128)Utica (289,577)Binghamton (245,844)All US metros →

County rankings

US Counties by Population Richest US Counties by Median Household Income Expensive US Counties by Home Value Educated US Counties Counties With Highest Poverty Rates Youngest US Counties by Median Age Oldest US Counties by Median Age Cheapest US Counties by Median Home Value Racially Diverse US Counties Counties With Largest Hispanic Population All rankings →

Frequently Asked Questions

Lewis County, New York has a population of 26,618 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 59th-largest county in New York. Population density is 21 people per square mile.

The population of Lewis County has declined 1.9% since 2010 (27,072 → 26,570), a -0.13% annualized rate.

The median household income in Lewis County, New York is $68,329, with mean (average) household income of $79,621 and per-capita income of $32,690. 8.8% of residents live below the federal poverty level.

In Lewis County, the largest racial and ethnic groups are White (94.3%), Black or African American (0.9%), Hispanic or Latino (0.6%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.

The median age in Lewis County, New York is 42.0 years. Residents are 49.3% female and 50.7% male.

The median home value in Lewis County is $158,000 and median monthly rent is $821. 80.4% of occupied housing units are owner-occupied. The county has 15,572 total housing units, 29.6% of which are vacant.

The largest employment sector in Lewis County, New York is professional, scientific, and management services, employing 26.3% of workers. The unemployment rate is 3.2%.

New York is among the largest cities associated with Lewis County, New York, with a population of 8,516,202.