St. Maries, ID Demographics

A map of St. Maries's Population by Race

St. Maries, Idaho has an estimated population of 2,915, a large increase from the 2,357 recorded in the 2020 Census. The population is 93.2% White, 2.7% Hispanic, 2.7% Multiracial, 1.3% Native American/Other, 0.1% Black, and 0.0% Asian. This demographic dot map shows the population of St. Maries, with one dot drawn for each person counted by the Census, color-coded by race.

St. Maries has become less racially diverse since the 2020 Census. It is considerably less diverse than Idaho overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In St. Maries, that probability was 15.9% in 2020 and 13.0% in the most recent ACS estimates.

St. Maries is ranked the 57th most populous place in Idaho, out of 236 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. Maries was ranked the 60th most populous place in the 2020 Census.

St. Maries's White Population

2,717 residents of St. Maries, or 93.2% of the population, identify as White. The share of White residents in St. Maries is considerably higher than in Idaho overall, where 78.6% of the population is White. St. Maries ranks 40th statewide in terms of White residents as a share of the population, out of 236 places.

Since the 2020 Census, St. Maries's White population has grown by an estimated 25.8%. White residents' share of St. Maries's population has increased from 91.6% to 93.2%.

St. Maries is more White than neighboring Parkline (79.1% White), Fernwood (0% White), and Plummer (43.1% White). St. Maries is less White than neighboring Conkling Park (96.7% White), and Harrison (100% White).

St. Maries's Black Population

3 residents of St. Maries, or 0.1% of the population, identify as Black. The share of Black residents in St. Maries is comparable to the share in Idaho overall, where 0.7% of the population is Black. St. Maries ranks 133rd statewide in terms of Black residents as a share of the population, out of 236 places.

Since the 2020 Census, St. Maries's Black population has grown by an estimated 200.0%. Black residents' share of St. Maries's population has remained roughly unchanged at 0.1%.

St. Maries is more Black than neighboring Parkline (0% Black), Conkling Park (0% Black), Fernwood (0% Black), and Harrison (0% Black). St. Maries is less Black than neighboring Plummer (3.1% Black).

St. Maries's Asian Population

0 residents of St. Maries, or 0.0% of the population, identify as Asian. The share of Asian residents in St. Maries is comparable to the share in Idaho overall, where 1.3% of the population is Asian. St. Maries ranks 90th statewide in terms of Asian residents as a share of the population, out of 236 places.

Since the 2020 Census, St. Maries's Asian population has declined by an estimated 100.0%. Asian residents' share of St. Maries's population has decreased from 0.5% to 0.0%.

St. Maries is less Asian than neighboring Plummer (0.1% Asian).

St. Maries's Hispanic Population

79 residents of St. Maries, or 2.7% of the population, identify as Hispanic. The share of Hispanic residents in St. Maries is considerably lower than in Idaho overall, where 13.6% of the population is Hispanic. St. Maries ranks 207th statewide in terms of Hispanic residents as a share of the population, out of 236 places.

Since the 2020 Census, St. Maries's Hispanic population has grown by an estimated 46.3%. Hispanic residents' share of St. Maries's population has remained roughly unchanged at 2.7%.

St. Maries is more Hispanic than neighboring Parkline (0% Hispanic), Fernwood (0% Hispanic), and Harrison (0% Hispanic). St. Maries is less Hispanic than neighboring Conkling Park (3.3% Hispanic), and Plummer (11.6% Hispanic).

St. Maries's Native American/Other Population

37 residents of St. Maries, or 1.3% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in St. Maries is comparable to the share in Idaho overall, where 1.5% of the population is Native American/Other. St. Maries ranks 45th statewide in terms of Native American/Other residents as a share of the population, out of 236 places.

Since the 2020 Census, St. Maries's Native American/Other population has declined by an estimated 26.0%. Native American/Other residents' share of St. Maries's population has decreased from 2.1% to 1.3%.

St. Maries is more Native American/Other than neighboring Conkling Park (0% Native American/Other), Fernwood (0% Native American/Other), and Harrison (0% Native American/Other). St. Maries is less Native American/Other than neighboring Parkline (20.9% Native American/Other), and Plummer (34.3% Native American/Other).

St. Maries's Multiracial Population

79 residents of St. Maries, or 2.7% of the population, identify as Multiracial. The share of Multiracial residents in St. Maries is comparable to the share in Idaho overall, where 4.2% of the population is Multiracial. St. Maries ranks 140th statewide in terms of Multiracial residents as a share of the population, out of 236 places.

Since the 2020 Census, St. Maries's Multiracial population has declined by an estimated 2.5%. Multiracial residents' share of St. Maries's population has decreased from 3.4% to 2.7%.

St. Maries is more Multiracial than neighboring Parkline (0% Multiracial), Conkling Park (0% Multiracial), Fernwood (0% Multiracial), and Harrison (0% Multiracial). St. Maries is less Multiracial than neighboring Plummer (7.8% 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.