Niagara County Demographics

A map of Niagara County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	173,008	173,691	82.1%	81.7%
Black	13,322	16,206	6.3%	7.6%
Multiracial	11,451	9,436	5.4%	4.4%
Hispanic	8,459	7,818	4.0%	3.7%
Asian	2,465	2,439	1.2%	1.1%
Native American/Other	2,016	3,076	1.0%	1.4%

Niagara County, New York has an estimated population of 210,721, a less than 1% change from the 212,666 recorded in the 2020 Census. The population is 82.1% White, 6.3% Black, 5.4% Multiracial, 4.0% Hispanic, 1.2% Asian, and 1.0% Native American/Other. This demographic dot map shows the population of Niagara County, with one dot drawn for each person counted by the Census, color-coded by race.

Niagara has become slightly less 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 Niagara County, that probability was 32.4% in 2020 and 31.7% in the most recent ACS estimates.

Niagara County is ranked the 18th most populous county in New York, out of 62 counties. Niagara County was ranked the 18th most populous county in the 2020 Census.

Niagara County's White Population

173,008 residents of Niagara County, or 82.1% of the population, identify as White. The share of White residents in Niagara County is significantly higher than in New York overall, where 52.8% of the population is White. Niagara County ranks 36th statewide in terms of White residents as a share of the population, out of 62 counties.

Since the 2020 Census, Niagara County's White population has remained roughly the same. White residents' share of Niagara County's population has remained roughly unchanged at 82.1%.

Niagara County is more White than neighboring Erie County (72.3% White), and Monroe County (67.7% White). Niagara County is less White than neighboring Orleans County (84.6% White), Genesee County (87.9% White), and Wyoming County (88.2% White).

Niagara County's Black Population

13,322 residents of Niagara County, or 6.3% of the population, identify as Black. The share of Black residents in Niagara County is lower than in New York overall, where 13.4% of the population is Black. Niagara County ranks 17th statewide in terms of Black residents as a share of the population, out of 62 counties.

Since the 2020 Census, Niagara County's Black population has declined by an estimated 17.8%. Black residents' share of Niagara County's population has decreased from 7.6% to 6.3%.

Niagara County is more Black than neighboring Orleans County (4.9% Black), Genesee County (2.1% Black), and Wyoming County (3.7% Black). Niagara County is less Black than neighboring Erie County (12.1% Black), and Monroe County (13.5% Black).

Niagara County's Asian Population

2,465 residents of Niagara County, or 1.2% of the population, identify as Asian. The share of Asian residents in Niagara County is lower than in New York overall, where 9% of the population is Asian. Niagara County ranks 33rd statewide in terms of Asian residents as a share of the population, out of 62 counties.

Since the 2020 Census, Niagara County's Asian population has grown by an estimated 1.1%. Asian residents' share of Niagara County's population has remained roughly unchanged at 1.2%.

Niagara County is more Asian than neighboring Orleans County (0.8% Asian), Genesee County (0.7% Asian), and Wyoming County (0.5% Asian). Niagara County is less Asian than neighboring Erie County (4.9% Asian), and Monroe County (3.8% Asian).

Niagara County's Hispanic Population

8,459 residents of Niagara County, or 4.0% of the population, identify as Hispanic. The share of Hispanic residents in Niagara County is significantly lower than in New York overall, where 19.8% of the population is Hispanic. Niagara County ranks 40th statewide in terms of Hispanic residents as a share of the population, out of 62 counties.

Since the 2020 Census, Niagara County's Hispanic population has grown by an estimated 8.2%. Hispanic residents' share of Niagara County's population has remained roughly unchanged at 4.0%.

Niagara County is more Hispanic than neighboring Wyoming County (3.8% Hispanic). Niagara County is less Hispanic than neighboring Orleans County (5.5% Hispanic), Erie County (6.4% Hispanic), Genesee County (4.8% Hispanic), and Monroe County (9.9% Hispanic).

Niagara County's Native American/Other Population

2,016 residents of Niagara County, or 1.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Niagara County is comparable to the share in New York overall, where 1.2% of the population is Native American/Other. Niagara County ranks 6th statewide in terms of Native American/Other residents as a share of the population, out of 62 counties.

Since the 2020 Census, Niagara County's Native American/Other population has declined by an estimated 34.5%. Native American/Other residents' share of Niagara County's population has remained roughly unchanged at 1.0%.

Niagara County is more Native American/Other than neighboring Orleans County (0.8% Native American/Other), Erie County (0.8% Native American/Other), Genesee County (0.6% Native American/Other), and Monroe County (0.6% Native American/Other).

Niagara County's Multiracial Population

11,451 residents of Niagara County, or 5.4% of the population, identify as Multiracial. The share of Multiracial residents in Niagara County is comparable to the share in New York overall, where 3.8% of the population is Multiracial. Niagara County ranks 23rd statewide in terms of Multiracial residents as a share of the population, out of 62 counties.

Since the 2020 Census, Niagara County's Multiracial population has grown by an estimated 21.4%. Multiracial residents' share of Niagara County's population has increased from 4.4% to 5.4%.

Niagara County is more Multiracial than neighboring Orleans County (3.5% Multiracial), Erie County (3.5% Multiracial), Genesee County (3.9% Multiracial), Wyoming County (2.8% Multiracial), and Monroe County (4.5% 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.