St. Marys, WV Demographics

A map of St. Marys's Population by Race

St. Marys, West Virginia has an estimated population of 2,174, a large increase from the 1,831 recorded in the 2020 Census. The population is 93.7% White, 4.0% Hispanic, 2.1% Multiracial, 0.2% Native American/Other, 0.0% Black, and 0.0% Asian. This demographic dot map shows the population of St. Marys, with one dot drawn for each person counted by the Census, color-coded by race.

St. Marys has become more racially diverse since the 2020 Census. It is considerably less diverse than West Virginia overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In St. Marys, that probability was 9.6% in 2020 and 12.1% in the most recent ACS estimates.

St. Marys is ranked the 75th most populous place in West Virginia, out of 439 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. Marys was ranked the 77th most populous place in the 2020 Census.

St. Marys's White Population

2,036 residents of St. Marys, or 93.7% of the population, identify as White. The share of White residents in St. Marys is slightly higher than in West Virginia overall, where 89.7% of the population is White. St. Marys ranks 123rd statewide in terms of White residents as a share of the population, out of 439 places.

Since the 2020 Census, St. Marys's White population has grown by an estimated 17.0%. White residents' share of St. Marys's population has decreased from 95.0% to 93.7%.

St. Marys is more White than neighboring Belmont (86.8% White), and Friendly (91.9% White). St. Marys is less White than neighboring Newport CDP (Washington County) (100% White), Matamoras (New Matamoras) (94.6% White), and Ellenboro (97.6% White).

St. Marys's Black Population

0 residents of St. Marys, or 0.0% of the population, identify as Black. The share of Black residents in St. Marys is slightly lower than in West Virginia overall, where 3.1% of the population is Black. St. Marys ranks 284th statewide in terms of Black residents as a share of the population, out of 439 places.

Since the 2020 Census, St. Marys's Black population has declined by an estimated 100.0%. Black residents' share of St. Marys's population has remained roughly unchanged at 0.0%.

St. Marys's Asian Population

0 residents of St. Marys, or 0.0% of the population, identify as Asian. The share of Asian residents in St. Marys is comparable to the share in West Virginia overall, where 0.8% of the population is Asian. St. Marys ranks 180th statewide in terms of Asian residents as a share of the population, out of 439 places.

Since the 2020 Census, St. Marys's Asian population has declined by an estimated 100.0%. Asian residents' share of St. Marys's population has remained roughly unchanged at 0.0%.

St. Marys is less Asian than neighboring Matamoras (New Matamoras) (1.2% Asian).

St. Marys's Hispanic Population

88 residents of St. Marys, or 4.0% of the population, identify as Hispanic. The share of Hispanic residents in St. Marys is comparable to the share in West Virginia overall, where 2.1% of the population is Hispanic. St. Marys ranks 206th statewide in terms of Hispanic residents as a share of the population, out of 439 places.

Since the 2020 Census, St. Marys's Hispanic population has grown by an estimated 319.0%. Hispanic residents' share of St. Marys's population has increased from 1.1% to 4.0%.

St. Marys is more Hispanic than neighboring Newport CDP (Washington County) (0% Hispanic), Matamoras (New Matamoras) (0% Hispanic), Friendly (3.3% Hispanic), and Ellenboro (0% Hispanic). St. Marys is less Hispanic than neighboring Belmont (4.9% Hispanic).

St. Marys's Native American/Other Population

4 residents of St. Marys, or 0.2% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in St. Marys is comparable to the share in West Virginia overall, where 0.4% of the population is Native American/Other. St. Marys ranks 122nd statewide in terms of Native American/Other residents as a share of the population, out of 439 places.

Since the 2020 Census, St. Marys's Native American/Other population has declined by an estimated 63.6%. Native American/Other residents' share of St. Marys's population has remained roughly unchanged at 0.2%.

St. Marys is more Native American/Other than neighboring Newport CDP (Washington County) (0% Native American/Other), Belmont (0% Native American/Other), and Friendly (0% Native American/Other). St. Marys is less Native American/Other than neighboring Matamoras (New Matamoras) (0.7% Native American/Other), and Ellenboro (0.5% Native American/Other).

St. Marys's Multiracial Population

46 residents of St. Marys, or 2.1% of the population, identify as Multiracial. The share of Multiracial residents in St. Marys is comparable to the share in West Virginia overall, where 3.9% of the population is Multiracial. St. Marys ranks 322nd statewide in terms of Multiracial residents as a share of the population, out of 439 places.

Since the 2020 Census, St. Marys's Multiracial population has declined by an estimated 4.2%. Multiracial residents' share of St. Marys's population has decreased from 2.6% to 2.1%.

St. Marys is more Multiracial than neighboring Newport CDP (Washington County) (0% Multiracial), and Ellenboro (1.9% Multiracial). St. Marys is less Multiracial than neighboring Belmont (8.3% Multiracial), Matamoras (New Matamoras) (3.6% Multiracial), and Friendly (4.9% 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.