Seneca County Demographics

A map of Seneca County's Population by Race

Seneca County, New York had a population of 33,814 in 2020. It was 86.6% White, 3.7% Black, 0.8% Asian, 4.0% Hispanic, 0.7% Native American/Other, and 4.2% Multiracial. This map presents the population of Seneca County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Seneca County is the 57th most populous county of the 62 counties in New York.

Seneca County's White Population

29,273 residents of Seneca County identify as White, or 86.6%. This makes the White share of the population of Seneca County considerably larger than the White share of the population of New York (52.5% White). Of the 62 counties in New York, Seneca County is ranked #29 in terms of White residents as a share of the population.

Seneca County is more White than neighboring Tompkins County (72.6% White). Seneca County is less White than neighboring Yates County (93% White), Cayuga County (87% White), and Schuyler County (92.8% White).

Seneca County's Black Population

1,263 residents of Seneca County identify as Black, or 3.7%. This makes the Black share of the population of Seneca County slightly less than the Black share of the population of New York (13.7% Black). Of the 62 counties in New York, Seneca County is ranked #30 in terms of Black residents as a share of the population.

Seneca County is more Black than neighboring Yates County (0.6% Black), Cayuga County (3.6% Black), Schuyler County (0.5% Black), and Ontario County (2.2% Black). Seneca County is less Black than neighboring Tompkins County (4% Black).

Seneca County's Asian Population

268 residents of Seneca County identify as Asian, or 0.8%. This makes the Asian share of the population of Seneca County slightly less than the Asian share of the population of New York (9.5% Asian). Of the 62 counties in New York, Seneca County is ranked #42 in terms of Asian residents as a share of the population.

Seneca County is more Asian than neighboring Yates County (0.4% Asian), Cayuga County (0.5% Asian), and Schuyler County (0.6% Asian). Seneca County is less Asian than neighboring Tompkins County (9.9% Asian), and Ontario County (1.2% Asian).

Seneca County's Hispanic Population

1,367 residents of Seneca County identify as Hispanic, or 4.0%. This makes the Hispanic share of the population of Seneca County less than the Hispanic share of the population of New York (19.5% Hispanic). Of the 62 counties in New York, Seneca County is ranked #36 in terms of Hispanic residents as a share of the population.

Seneca County is more Hispanic than neighboring Yates County (2.7% Hispanic), Cayuga County (3.5% Hispanic), and Schuyler County (1.8% Hispanic). Seneca County is less Hispanic than neighboring Tompkins County (6.7% Hispanic), and Ontario County (5.4% Hispanic).

Seneca County's Native American/Other Population

234 residents of Seneca County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 0.7%. This makes the Native American/Other share of the population of Seneca County roughly similar to the Native American/Other share of the population of New York (1.3% Native American/Other). Of the 62 counties in New York, Seneca County is ranked #31 in terms of Native American/Other residents as a share of the population.

Seneca County is more Native American/Other than neighboring Yates County (0.5% Native American/Other), Schuyler County (0.5% Native American/Other), and Ontario County (0.6% Native American/Other). Seneca County is less Native American/Other than neighboring Tompkins County (0.9% Native American/Other).

Seneca County's Multiracial Population

1,409 residents of Seneca County identify as Multiracial, or 4.2%. This makes the Multiracial share of the population of Seneca County roughly similar to the Multiracial share of the population of New York (3.6% Multiracial). Of the 62 counties in New York, Seneca County is ranked #33 in terms of Multiracial residents as a share of the population.

Seneca County is more Multiracial than neighboring Yates County (2.8% Multiracial), Schuyler County (3.7% Multiracial), and Ontario County (4% Multiracial). Seneca County is less Multiracial than neighboring Cayuga County (4.8% Multiracial), and Tompkins County (5.9% Multiracial).

Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.