Lewis County Demographics

A map of Lewis County's Population by Race

Lewis County, New York has an estimated population of 26,607, a less than 1% change from the 26,582 recorded in the 2020 Census. The population is 93.4% White, 3.2% Multiracial, 1.8% Hispanic, 0.7% Black, 0.6% Native American/Other, and 0.3% Asian. This demographic dot map shows the population of Lewis County, with one dot drawn for each person counted by the Census, color-coded by race.

Lewis has become slightly more racially diverse since the 2020 Census. It is considerably less diverse than New York overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Lewis County, that probability was 11.8% in 2020 and 12.5% in the most recent ACS estimates.

Lewis County is ranked the 59th most populous county in New York, out of 62 counties. Lewis County was ranked the 59th most populous county in the 2020 Census.

Lewis County's White Population

24,862 residents of Lewis County, or 93.4% of the population, identify as White. The share of White residents in Lewis County is significantly higher than in New York overall, where 52.8% of the population is White. Lewis County ranks 1st statewide in terms of White residents as a share of the population, out of 62 counties.

Since the 2020 Census, Lewis County's White population has remained roughly the same. White residents' share of Lewis County's population has remained roughly unchanged at 93.4%.

Lewis County is more White than neighboring Oneida County (78.7% White), Herkimer County (90.7% White), Jefferson County (80.2% White), St. Lawrence County (91.2% White), and Oswego County (90.8% White).

Lewis County's Black Population

193 residents of Lewis County, or 0.7% of the population, identify as Black. The share of Black residents in Lewis County is considerably lower than in New York overall, where 13.4% of the population is Black. Lewis County ranks 62nd statewide in terms of Black residents as a share of the population, out of 62 counties.

Since the 2020 Census, Lewis County's Black population has grown by an estimated 87.4%. Black residents' share of Lewis County's population has remained roughly unchanged at 0.7%.

Lewis County is less Black than neighboring Oneida County (5.7% Black), Herkimer County (1.2% Black), Jefferson County (4.3% Black), St. Lawrence County (1.9% Black), and Oswego County (0.9% Black).

Lewis County's Asian Population

78 residents of Lewis County, or 0.3% of the population, identify as Asian. The share of Asian residents in Lewis County is lower than in New York overall, where 9% of the population is Asian. Lewis County ranks 61st statewide in terms of Asian residents as a share of the population, out of 62 counties.

Since the 2020 Census, Lewis County's Asian population has grown by an estimated 20.0%. Asian residents' share of Lewis County's population has remained roughly unchanged at 0.3%.

Lewis County is less Asian than neighboring Oneida County (4.3% Asian), Herkimer County (0.6% Asian), Jefferson County (1.9% Asian), St. Lawrence County (1.1% Asian), and Oswego County (0.8% Asian).

Lewis County's Hispanic Population

480 residents of Lewis County, or 1.8% of the population, identify as Hispanic. The share of Hispanic residents in Lewis County is significantly lower than in New York overall, where 19.8% of the population is Hispanic. Lewis County ranks 62nd statewide in terms of Hispanic residents as a share of the population, out of 62 counties.

Since the 2020 Census, Lewis County's Hispanic population has grown by an estimated 4.3%. Hispanic residents' share of Lewis County's population has remained roughly unchanged at 1.8%.

Lewis County is less Hispanic than neighboring Oneida County (7.1% Hispanic), Herkimer County (2.8% Hispanic), Jefferson County (7.5% Hispanic), St. Lawrence County (2.5% Hispanic), and Oswego County (3.3% Hispanic).

Lewis County's Native American/Other Population

152 residents of Lewis County, or 0.6% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Lewis County is comparable to the share in New York overall, where 1.2% of the population is Native American/Other. Lewis County ranks 62nd statewide in terms of Native American/Other residents as a share of the population, out of 62 counties.

Since the 2020 Census, Lewis County's Native American/Other population has grown by an estimated 47.6%. Native American/Other residents' share of Lewis County's population has remained roughly unchanged at 0.6%.

Lewis County is more Native American/Other than neighboring Oswego County (0.5% Native American/Other). Lewis County is less Native American/Other than neighboring Oneida County (0.7% Native American/Other).

Lewis County's Multiracial Population

842 residents of Lewis County, or 3.2% of the population, identify as Multiracial. The share of Multiracial residents in Lewis County is comparable to the share in New York overall, where 3.8% of the population is Multiracial. Lewis County ranks 51st statewide in terms of Multiracial residents as a share of the population, out of 62 counties.

Since the 2020 Census, Lewis County's Multiracial population has declined by an estimated 7.4%. Multiracial residents' share of Lewis County's population has remained roughly unchanged at 3.2%.

Lewis County is more Multiracial than neighboring St. Lawrence County (2.6% Multiracial). Lewis County is less Multiracial than neighboring Oneida County (3.6% Multiracial), Herkimer County (4.1% Multiracial), Jefferson County (5.5% Multiracial), and Oswego County (3.6% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.