St. Thomas, ND Demographics

A map of St. Thomas's Population by Race

St. Thomas, North Dakota has an estimated population of 306, a decrease from the 323 recorded in the 2020 Census. The population is 77.5% White, 20.6% Hispanic, 2.0% Multiracial, 0.0% Black, 0.0% Asian, and 0.0% Native American/Other. This demographic dot map shows the population of St. Thomas, with one dot drawn for each person counted by the Census, color-coded by race.

St. Thomas has become considerably less racially diverse since the 2020 Census. It is more diverse than North Dakota overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In St. Thomas, that probability was 45.6% in 2020 and 35.7% in the most recent ACS estimates.

St. Thomas is ranked the 139th most populous place in North Dakota, out of 406 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. Thomas was ranked the 131st most populous place in the 2020 Census.

St. Thomas's White Population

237 residents of St. Thomas, or 77.5% of the population, identify as White. The share of White residents in St. Thomas is slightly lower than in North Dakota overall, where 81.7% of the population is White. St. Thomas ranks 373rd statewide in terms of White residents as a share of the population, out of 406 places.

Since the 2020 Census, St. Thomas's White population has grown by an estimated 3.9%. White residents' share of St. Thomas's population has increased from 70.6% to 77.5%.

St. Thomas is more White than neighboring Hoople (71.1% White), and Grafton (67.6% White). St. Thomas is less White than neighboring Auburn (100% White), Nash (100% White), and Hamilton (100% White).

St. Thomas's Black Population

0 residents of St. Thomas, or 0.0% of the population, identify as Black. The share of Black residents in St. Thomas is slightly lower than in North Dakota overall, where 3.3% of the population is Black. St. Thomas ranks 37th statewide in terms of Black residents as a share of the population, out of 406 places.

Since the 2020 Census, St. Thomas's Black population has declined by an estimated 100.0%. Black residents' share of St. Thomas's population has decreased from 1.5% to 0.0%.

St. Thomas is less Black than neighboring Grafton (0.8% Black).

St. Thomas's Asian Population

0 residents of St. Thomas, or 0.0% of the population, identify as Asian. The share of Asian residents in St. Thomas is comparable to the share in North Dakota overall, where 1.6% of the population is Asian. St. Thomas ranks 149th statewide in terms of Asian residents as a share of the population, out of 406 places.

Since the 2020 Census, St. Thomas's Asian population has grown from 0 to an estimated 0. Asian residents' share of St. Thomas's population has remained roughly unchanged at 0.0%.

St. Thomas is less Asian than neighboring Grafton (1.9% Asian).

St. Thomas's Hispanic Population

63 residents of St. Thomas, or 20.6% of the population, identify as Hispanic. The share of Hispanic residents in St. Thomas is significantly higher than in North Dakota overall, where 4.7% of the population is Hispanic. St. Thomas ranks 4th statewide in terms of Hispanic residents as a share of the population, out of 406 places.

Since the 2020 Census, St. Thomas's Hispanic population has declined by an estimated 4.5%. Hispanic residents' share of St. Thomas's population has remained roughly unchanged at 20.6%.

St. Thomas is more Hispanic than neighboring Auburn (0% Hispanic), Nash (0% Hispanic), and Hamilton (0% Hispanic). St. Thomas is less Hispanic than neighboring Hoople (28.1% Hispanic), and Grafton (24.8% Hispanic).

St. Thomas's Native American/Other Population

0 residents of St. Thomas, 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. Thomas is slightly lower than in North Dakota overall, where 4.7% of the population is Native American/Other. St. Thomas ranks 146th statewide in terms of Native American/Other residents as a share of the population, out of 406 places.

Since the 2020 Census, St. Thomas's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of St. Thomas's population has decreased from 1.5% to 0.0%.

St. Thomas is less Native American/Other than neighboring Grafton (1.4% Native American/Other).

St. Thomas's Multiracial Population

6 residents of St. Thomas, or 2.0% of the population, identify as Multiracial. The share of Multiracial residents in St. Thomas is comparable to the share in North Dakota overall, where 4% of the population is Multiracial. St. Thomas ranks 82nd statewide in terms of Multiracial residents as a share of the population, out of 406 places.

Since the 2020 Census, St. Thomas's Multiracial population has declined by an estimated 68.4%. Multiracial residents' share of St. Thomas's population has decreased from 5.9% to 2.0%.

St. Thomas is more Multiracial than neighboring Auburn (0% Multiracial), Nash (0% Multiracial), Hamilton (0% Multiracial), and Hoople (0.9% Multiracial). St. Thomas is less Multiracial than neighboring Grafton (3.6% 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.