St. Lawrence County Demographics

A map of St. Lawrence County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	97,759	96,556	91.2%	89.0%
Multiracial	2,818	3,780	2.6%	3.5%
Hispanic	2,727	2,832	2.5%	2.6%
Black	2,068	2,788	1.9%	2.6%
Asian	1,169	1,089	1.1%	1.0%
Native American/Other	685	1,460	0.6%	1.3%

St. Lawrence County, New York has an estimated population of 107,226, a slight decrease from the 108,505 recorded in the 2020 Census. The population is 91.2% White, 2.6% Multiracial, 2.5% Hispanic, 1.9% Black, 1.1% Asian, and 0.6% Native American/Other. This demographic dot map shows the population of St. Lawrence County, with one dot drawn for each person counted by the Census, color-coded by race.

St. Lawrence has become 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 St. Lawrence County, that probability was 20.5% in 2020 and 16.7% in the most recent ACS estimates.

St. Lawrence County is ranked the 27th most populous county in New York, out of 62 counties. St. Lawrence County was ranked the 27th most populous county in the 2020 Census.

St. Lawrence County's White Population

97,759 residents of St. Lawrence County, or 91.2% of the population, identify as White. The share of White residents in St. Lawrence County is significantly higher than in New York overall, where 52.8% of the population is White. St. Lawrence County ranks 16th statewide in terms of White residents as a share of the population, out of 62 counties.

Since the 2020 Census, St. Lawrence County's White population has grown by an estimated 1.2%. White residents' share of St. Lawrence County's population has increased from 89.0% to 91.2%.

St. Lawrence County is more White than neighboring Franklin County (83.4% White), Herkimer County (90.7% White), and Jefferson County (80.2% White). St. Lawrence County is less White than neighboring Lewis County (93.4% White), and Hamilton County (91.5% White).

St. Lawrence County's Black Population

2,068 residents of St. Lawrence County, or 1.9% of the population, identify as Black. The share of Black residents in St. Lawrence County is considerably lower than in New York overall, where 13.4% of the population is Black. St. Lawrence County ranks 35th statewide in terms of Black residents as a share of the population, out of 62 counties.

Since the 2020 Census, St. Lawrence County's Black population has declined by an estimated 25.8%. Black residents' share of St. Lawrence County's population has decreased from 2.6% to 1.9%.

St. Lawrence County is more Black than neighboring Lewis County (0.7% Black), Hamilton County (1.5% Black), and Herkimer County (1.2% Black). St. Lawrence County is less Black than neighboring Franklin County (3.4% Black), and Jefferson County (4.3% Black).

St. Lawrence County's Asian Population

1,169 residents of St. Lawrence County, or 1.1% of the population, identify as Asian. The share of Asian residents in St. Lawrence County is lower than in New York overall, where 9% of the population is Asian. St. Lawrence County ranks 38th statewide in terms of Asian residents as a share of the population, out of 62 counties.

Since the 2020 Census, St. Lawrence County's Asian population has grown by an estimated 7.3%. Asian residents' share of St. Lawrence County's population has remained roughly unchanged at 1.1%.

St. Lawrence County is more Asian than neighboring Franklin County (0.7% Asian), Lewis County (0.3% Asian), Hamilton County (0.3% Asian), and Herkimer County (0.6% Asian). St. Lawrence County is less Asian than neighboring Jefferson County (1.9% Asian).

St. Lawrence County's Hispanic Population

2,727 residents of St. Lawrence County, or 2.5% of the population, identify as Hispanic. The share of Hispanic residents in St. Lawrence County is significantly lower than in New York overall, where 19.8% of the population is Hispanic. St. Lawrence County ranks 52nd statewide in terms of Hispanic residents as a share of the population, out of 62 counties.

Since the 2020 Census, St. Lawrence County's Hispanic population has declined by an estimated 3.7%. Hispanic residents' share of St. Lawrence County's population has remained roughly unchanged at 2.5%.

St. Lawrence County is more Hispanic than neighboring Lewis County (1.8% Hispanic), and Hamilton County (2.1% Hispanic). St. Lawrence County is less Hispanic than neighboring Franklin County (2.9% Hispanic), Herkimer County (2.8% Hispanic), and Jefferson County (7.5% Hispanic).

St. Lawrence County's Native American/Other Population

685 residents of St. Lawrence 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 St. Lawrence County is comparable to the share in New York overall, where 1.2% of the population is Native American/Other. St. Lawrence County ranks 9th statewide in terms of Native American/Other residents as a share of the population, out of 62 counties.

Since the 2020 Census, St. Lawrence County's Native American/Other population has declined by an estimated 53.1%. Native American/Other residents' share of St. Lawrence County's population has decreased from 1.3% to 0.6%.

St. Lawrence County is more Native American/Other than neighboring Hamilton County (0.5% Native American/Other). St. Lawrence County is less Native American/Other than neighboring Franklin County (7.8% Native American/Other).

St. Lawrence County's Multiracial Population

2,818 residents of St. Lawrence County, or 2.6% of the population, identify as Multiracial. The share of Multiracial residents in St. Lawrence County is comparable to the share in New York overall, where 3.8% of the population is Multiracial. St. Lawrence County ranks 48th statewide in terms of Multiracial residents as a share of the population, out of 62 counties.

Since the 2020 Census, St. Lawrence County's Multiracial population has declined by an estimated 25.4%. Multiracial residents' share of St. Lawrence County's population has decreased from 3.5% to 2.6%.

St. Lawrence County is more Multiracial than neighboring Franklin County (1.9% Multiracial). St. Lawrence County is less Multiracial than neighboring Lewis County (3.2% Multiracial), Hamilton County (4.1% Multiracial), Herkimer County (4.1% Multiracial), and Jefferson County (5.5% 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.