Hamilton County Demographics
A map of Hamilton County's Population by Race
Hamilton County, Kansas has an estimated population of 2,471, a slight decrease from the 2,518 recorded in the 2020 Census. The population is 54.3% White, 44.0% Hispanic, 1.7% Multiracial, 0.0% Black, 0.0% Asian, and 0.0% Native American/Other. This demographic dot map shows the population of Hamilton County, with one dot drawn for each person counted by the Census, color-coded by race.
Hamilton has become less racially diverse since the 2020 Census. It is considerably more 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 Hamilton County, that probability was 52.2% in 2020 and 51.1% in the most recent ACS estimates.
Hamilton County is ranked the 93rd most populous county in Kansas, out of 105 counties. Hamilton County was ranked the 93rd most populous county in the 2020 Census.
Hamilton County's White Population
1,341 residents of Hamilton County, or 54.3% of the population, identify as White. The share of White residents in Hamilton County is significantly lower than in Kansas overall, where 72.7% of the population is White. Hamilton County ranks 99th statewide in terms of White residents as a share of the population, out of 105 counties.
Since the 2020 Census, Hamilton County's White population has declined by an estimated 1.5%. White residents' share of Hamilton County's population has remained roughly unchanged at 54.3%.
Hamilton County is more White than neighboring Stanton County (45.7% White), and Grant County (44% White). Hamilton County is less White than neighboring Kearny County (58.5% White), Greeley County (81.4% White), and Prowers County (55% White).
Hamilton County's Black Population
1 residents of Hamilton County, or 0.0% of the population, identify as Black. The share of Black residents in Hamilton County is lower than in Kansas overall, where 5.2% of the population is Black. Hamilton County ranks 67th statewide in terms of Black residents as a share of the population, out of 105 counties.
Since the 2020 Census, Hamilton County's Black population has declined by an estimated 90.0%. Black residents' share of Hamilton County's population has remained roughly unchanged at 0.0%.
Hamilton County is less Black than neighboring Stanton County (0.1% Black), Greeley County (0.2% Black), Prowers County (1% Black), and Grant County (0.2% Black).
Hamilton County's Asian Population
0 residents of Hamilton County, or 0.0% of the population, identify as Asian. The share of Asian residents in Hamilton County is slightly lower than in Kansas overall, where 2.9% of the population is Asian. Hamilton County ranks 89th statewide in terms of Asian residents as a share of the population, out of 105 counties.
Since the 2020 Census, Hamilton County's Asian population has declined by an estimated 100.0%. Asian residents' share of Hamilton County's population has remained roughly unchanged at 0.0%.
Hamilton County is less Asian than neighboring Stanton County (0.4% Asian), Kearny County (3.6% Asian), Prowers County (0.3% Asian), and Grant County (0.1% Asian).
Hamilton County's Hispanic Population
1,088 residents of Hamilton County, or 44.0% of the population, identify as Hispanic. The share of Hispanic residents in Hamilton County is significantly higher than in Kansas overall, where 13.6% of the population is Hispanic. Hamilton County ranks 6th statewide in terms of Hispanic residents as a share of the population, out of 105 counties.
Since the 2020 Census, Hamilton County's Hispanic population has remained roughly the same. Hispanic residents' share of Hamilton County's population has increased from 43.1% to 44.0%.
Hamilton County is more Hispanic than neighboring Kearny County (35.6% Hispanic), Greeley County (16.9% Hispanic), and Prowers County (40.5% Hispanic). Hamilton County is less Hispanic than neighboring Stanton County (45.6% Hispanic), and Grant County (53.4% Hispanic).
Hamilton County's Native American/Other Population
0 residents of Hamilton County, 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 Hamilton County is comparable to the share in Kansas overall, where 0.9% of the population is Native American/Other. Hamilton County ranks 78th statewide in terms of Native American/Other residents as a share of the population, out of 105 counties.
Since the 2020 Census, Hamilton County's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Hamilton County's population has decreased from 0.6% to 0.0%.
Hamilton County is less Native American/Other than neighboring Stanton County (5.7% Native American/Other), Kearny County (0.9% Native American/Other), Greeley County (0.4% Native American/Other), Prowers County (0.1% Native American/Other), and Grant County (0.7% Native American/Other).
Hamilton County's Multiracial Population
41 residents of Hamilton County, or 1.7% of the population, identify as Multiracial. The share of Multiracial residents in Hamilton County is slightly lower than in Kansas overall, where 4.8% of the population is Multiracial. Hamilton County ranks 104th statewide in terms of Multiracial residents as a share of the population, out of 105 counties.
Since the 2020 Census, Hamilton County's Multiracial population has declined by an estimated 6.8%. Multiracial residents' share of Hamilton County's population has remained roughly unchanged at 1.7%.
Hamilton County is more Multiracial than neighboring Kearny County (1.4% Multiracial), Greeley County (1.2% Multiracial), and Grant County (1.6% Multiracial). Hamilton County is less Multiracial than neighboring Stanton County (2.5% Multiracial), and Prowers 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.