Thomas County Demographics
A map of Thomas County's Population by Race
Thomas County, Kansas has an estimated population of 7,885, a less than 1% change from the 7,930 recorded in the 2020 Census. The population is 86.6% White, 8.4% Hispanic, 4.2% Multiracial, 0.4% Black, 0.2% Native American/Other, and 0.1% Asian. This demographic dot map shows the population of Thomas County, with one dot drawn for each person counted by the Census, color-coded by race.
Thomas has become slightly more racially diverse since the 2020 Census. It is considerably less diverse than Kansas overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Thomas County, that probability was 23.4% in 2020 and 24.1% in the most recent ACS estimates.
Thomas County is ranked the 48th most populous county in Kansas, out of 105 counties. Thomas County was ranked the 48th most populous county in the 2020 Census.
Thomas County's White Population
6,830 residents of Thomas County, or 86.6% of the population, identify as White. The share of White residents in Thomas County is considerably higher than in Kansas overall, where 72.7% of the population is White. Thomas County ranks 49th statewide in terms of White residents as a share of the population, out of 105 counties.
Since the 2020 Census, Thomas County's White population has declined by an estimated 1.2%. White residents' share of Thomas County's population has decreased from 87.1% to 86.6%.
Thomas County is more White than neighboring Sherman County (82.8% White). Thomas County is less White than neighboring Rawlins County (88.5% White), Logan County (87.7% White), Sheridan County (91.3% White), and Gove County (93.7% White).
Thomas County's Black Population
31 residents of Thomas County, or 0.4% of the population, identify as Black. The share of Black residents in Thomas County is slightly lower than in Kansas overall, where 5.2% of the population is Black. Thomas County ranks 34th statewide in terms of Black residents as a share of the population, out of 105 counties.
Since the 2020 Census, Thomas County's Black population has declined by an estimated 70.8%. Black residents' share of Thomas County's population has decreased from 1.3% to 0.4%.
Thomas County is more Black than neighboring Rawlins County (0% Black), Logan County (0% Black), and Sheridan County (0% Black). Thomas County is less Black than neighboring Sherman County (1.8% Black), and Gove County (0.5% Black).
Thomas County's Asian Population
11 residents of Thomas County, or 0.1% of the population, identify as Asian. The share of Asian residents in Thomas County is slightly lower than in Kansas overall, where 2.9% of the population is Asian. Thomas County ranks 30th statewide in terms of Asian residents as a share of the population, out of 105 counties.
Since the 2020 Census, Thomas County's Asian population has declined by an estimated 76.6%. Asian residents' share of Thomas County's population has decreased from 0.6% to 0.1%.
Thomas County is more Asian than neighboring Sheridan County (0% Asian). Thomas County is less Asian than neighboring Rawlins County (0.8% Asian), Logan County (0.6% Asian), and Gove County (0.8% Asian).
Thomas County's Hispanic Population
662 residents of Thomas County, or 8.4% of the population, identify as Hispanic. The share of Hispanic residents in Thomas County is lower than in Kansas overall, where 13.6% of the population is Hispanic. Thomas County ranks 39th statewide in terms of Hispanic residents as a share of the population, out of 105 counties.
Since the 2020 Census, Thomas County's Hispanic population has grown by an estimated 4.7%. Hispanic residents' share of Thomas County's population has remained roughly unchanged at 8.4%.
Thomas County is more Hispanic than neighboring Rawlins County (7.7% Hispanic), Logan County (7.4% Hispanic), Sheridan County (5.9% Hispanic), and Gove County (1.7% Hispanic). Thomas County is less Hispanic than neighboring Sherman County (13% Hispanic).
Thomas County's Native American/Other Population
18 residents of Thomas County, 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 Thomas County is comparable to the share in Kansas overall, where 0.9% of the population is Native American/Other. Thomas County ranks 86th statewide in terms of Native American/Other residents as a share of the population, out of 105 counties.
Since the 2020 Census, Thomas County's Native American/Other population has declined by an estimated 50.0%. Native American/Other residents' share of Thomas County's population has remained roughly unchanged at 0.2%.
Thomas County is more Native American/Other than neighboring Sherman County (0% Native American/Other). Thomas County is less Native American/Other than neighboring Rawlins County (1.2% Native American/Other), Logan County (0.9% Native American/Other), Sheridan County (0.3% Native American/Other), and Gove County (0.3% Native American/Other).
Thomas County's Multiracial Population
333 residents of Thomas County, or 4.2% of the population, identify as Multiracial. The share of Multiracial residents in Thomas County is comparable to the share in Kansas overall, where 4.8% of the population is Multiracial. Thomas County ranks 95th statewide in terms of Multiracial residents as a share of the population, out of 105 counties.
Since the 2020 Census, Thomas County's Multiracial population has grown by an estimated 67.3%. Multiracial residents' share of Thomas County's population has increased from 2.5% to 4.2%.
Thomas County is more Multiracial than neighboring Rawlins County (1.8% Multiracial), Logan County (3.4% Multiracial), Sheridan County (2.5% Multiracial), Sherman County (2.3% Multiracial), and Gove County (3% 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.