St. Clair, MI Demographics

A map of St. Clair's Population by Race

St. Clair, Michigan has an estimated population of 5,585, a slight increase from the 5,464 recorded in the 2020 Census. The population is 92.1% White, 3.7% Black, 2.4% Multiracial, 1.7% Hispanic, 0.0% Asian, and 0.0% Native American/Other. This demographic dot map shows the population of St. Clair, with one dot drawn for each person counted by the Census, color-coded by race.

St. Clair has become less racially diverse since the 2020 Census. It is considerably less diverse than Michigan overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In St. Clair, that probability was 16.3% in 2020 and 14.9% in the most recent ACS estimates.

St. Clair is ranked the 168th most populous place in Michigan, out of 745 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). St. Clair was ranked the 169th most populous place in the 2020 Census.

St. Clair's White Population

5,144 residents of St. Clair, or 92.1% of the population, identify as White. The share of White residents in St. Clair is significantly higher than in Michigan overall, where 72.4% of the population is White. St. Clair ranks 250th statewide in terms of White residents as a share of the population, out of 745 places.

Since the 2020 Census, St. Clair's White population has grown by an estimated 3.0%. White residents' share of St. Clair's population has increased from 91.4% to 92.1%.

St. Clair is more White than neighboring Port Huron (79% White), and Algonac (91.8% White). St. Clair is less White than neighboring Marysville (93% White), Marine City (93.9% White), and Pearl Beach (96% White).

St. Clair's Black Population

208 residents of St. Clair, or 3.7% of the population, identify as Black. The share of Black residents in St. Clair is lower than in Michigan overall, where 13.1% of the population is Black. St. Clair ranks 356th statewide in terms of Black residents as a share of the population, out of 745 places.

Since the 2020 Census, St. Clair's Black population has grown by an estimated 447.4%. Black residents' share of St. Clair's population has increased from 0.7% to 3.7%.

St. Clair is more Black than neighboring Marysville (1.1% Black), Marine City (0% Black), Algonac (0.7% Black), and Pearl Beach (0% Black). St. Clair is less Black than neighboring Port Huron (6.4% Black).

St. Clair's Asian Population

0 residents of St. Clair, or 0.0% of the population, identify as Asian. The share of Asian residents in St. Clair is slightly lower than in Michigan overall, where 3.4% of the population is Asian. St. Clair ranks 254th statewide in terms of Asian residents as a share of the population, out of 745 places.

Since the 2020 Census, St. Clair's Asian population has declined by an estimated 100.0%. Asian residents' share of St. Clair's population has decreased from 0.7% to 0.0%.

St. Clair is less Asian than neighboring Marysville (1.2% Asian), Marine City (0.2% Asian), Port Huron (0.9% Asian), and Pearl Beach (0.7% Asian).

St. Clair's Hispanic Population

97 residents of St. Clair, or 1.7% of the population, identify as Hispanic. The share of Hispanic residents in St. Clair is slightly lower than in Michigan overall, where 5.9% of the population is Hispanic. St. Clair ranks 497th statewide in terms of Hispanic residents as a share of the population, out of 745 places.

Since the 2020 Census, St. Clair's Hispanic population has declined by an estimated 27.1%. Hispanic residents' share of St. Clair's population has decreased from 2.4% to 1.7%.

St. Clair is more Hispanic than neighboring Marysville (1.3% Hispanic), Marine City (1.4% Hispanic), and Pearl Beach (0.5% Hispanic). St. Clair is less Hispanic than neighboring Port Huron (6.3% Hispanic), and Algonac (4% Hispanic).

St. Clair's Native American/Other Population

0 residents of St. Clair, or 0.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in St. Clair is comparable to the share in Michigan overall, where 0.8% of the population is Native American/Other. St. Clair ranks 344th statewide in terms of Native American/Other residents as a share of the population, out of 745 places.

Since the 2020 Census, St. Clair's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of St. Clair's population has decreased from 0.8% to 0.0%.

St. Clair is less Native American/Other than neighboring Marysville (0.5% Native American/Other), Marine City (3.2% Native American/Other), Port Huron (0.6% Native American/Other), Algonac (0.6% Native American/Other), and Pearl Beach (0.2% Native American/Other).

St. Clair's Multiracial Population

136 residents of St. Clair, or 2.4% of the population, identify as Multiracial. The share of Multiracial residents in St. Clair is slightly lower than in Michigan overall, where 4.5% of the population is Multiracial. St. Clair ranks 402nd statewide in terms of Multiracial residents as a share of the population, out of 745 places.

Since the 2020 Census, St. Clair's Multiracial population has declined by an estimated 37.9%. Multiracial residents' share of St. Clair's population has decreased from 4.0% to 2.4%.

St. Clair is more Multiracial than neighboring Marine City (1.3% Multiracial). St. Clair is less Multiracial than neighboring Marysville (2.9% Multiracial), Port Huron (6.7% Multiracial), Algonac (3% Multiracial), and Pearl Beach (2.6% 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.