Harper County Demographics
A map of Harper County's Population by Race
Harper County, Kansas has an estimated population of 5,400, a slight decrease from the 5,485 recorded in the 2020 Census. The population is 86.1% White, 8.1% Hispanic, 4.2% Multiracial, 0.8% Black, 0.6% Native American/Other, and 0.3% Asian. This demographic dot map shows the population of Harper County, with one dot drawn for each person counted by the Census, color-coded by race.
Harper is about as racially diverse as it was in 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 Harper County, that probability was 25.3% in 2020 and 25.1% in the most recent ACS estimates.
Harper County is ranked the 63rd most populous county in Kansas, out of 105 counties. Harper County was ranked the 63rd most populous county in the 2020 Census.
Harper County's White Population
4,647 residents of Harper County, or 86.1% of the population, identify as White. The share of White residents in Harper County is considerably higher than in Kansas overall, where 72.7% of the population is White. Harper County ranks 57th statewide in terms of White residents as a share of the population, out of 105 counties.
Since the 2020 Census, Harper County's White population has declined by an estimated 1.4%. White residents' share of Harper County's population has remained roughly unchanged at 86.1%.
Harper County is more White than neighboring Grant County (85.2% White), and Alfalfa County (80.6% White). Harper County is less White than neighboring Kingman County (89.7% White), Sumner County (86.5% White), and Barber County (88.7% White).
Harper County's Black Population
45 residents of Harper County, or 0.8% of the population, identify as Black. The share of Black residents in Harper County is slightly lower than in Kansas overall, where 5.2% of the population is Black. Harper County ranks 81st statewide in terms of Black residents as a share of the population, out of 105 counties.
Since the 2020 Census, Harper County's Black population has grown by an estimated 181.3%. Black residents' share of Harper County's population has increased from 0.3% to 0.8%.
Harper County is more Black than neighboring Kingman County (0.3% Black), and Barber County (0.1% Black). Harper County is less Black than neighboring Grant County (1.9% Black), Alfalfa County (3.5% Black), and Sumner County (1.1% Black).
Harper County's Asian Population
15 residents of Harper County, or 0.3% of the population, identify as Asian. The share of Asian residents in Harper County is slightly lower than in Kansas overall, where 2.9% of the population is Asian. Harper County ranks 79th statewide in terms of Asian residents as a share of the population, out of 105 counties.
Since the 2020 Census, Harper County's Asian population has remained roughly the same. Asian residents' share of Harper County's population has remained roughly unchanged at 0.3%.
Harper County is more Asian than neighboring Kingman County (0% Asian), Grant County (0.1% Asian), and Barber County (0% Asian). Harper County is less Asian than neighboring Alfalfa County (0.4% Asian), and Sumner County (0.4% Asian).
Harper County's Hispanic Population
436 residents of Harper County, or 8.1% of the population, identify as Hispanic. The share of Hispanic residents in Harper County is lower than in Kansas overall, where 13.6% of the population is Hispanic. Harper County ranks 40th statewide in terms of Hispanic residents as a share of the population, out of 105 counties.
Since the 2020 Census, Harper County's Hispanic population has grown by an estimated 2.6%. Hispanic residents' share of Harper County's population has remained roughly unchanged at 8.1%.
Harper County is more Hispanic than neighboring Kingman County (4.1% Hispanic), Grant County (4.7% Hispanic), Alfalfa County (6.2% Hispanic), Sumner County (6.1% Hispanic), and Barber County (6.3% Hispanic).
Harper County's Native American/Other Population
32 residents of Harper County, or 0.6% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Harper County is comparable to the share in Kansas overall, where 0.9% of the population is Native American/Other. Harper County ranks 13th statewide in terms of Native American/Other residents as a share of the population, out of 105 counties.
Since the 2020 Census, Harper County's Native American/Other population has declined by an estimated 60.0%. Native American/Other residents' share of Harper County's population has decreased from 1.5% to 0.6%.
Harper County is less Native American/Other than neighboring Kingman County (1.6% Native American/Other), Grant County (2.6% Native American/Other), Alfalfa County (2.3% Native American/Other), Sumner County (1.2% Native American/Other), and Barber County (2.4% Native American/Other).
Harper County's Multiracial Population
225 residents of Harper County, or 4.2% of the population, identify as Multiracial. The share of Multiracial residents in Harper County is comparable to the share in Kansas overall, where 4.8% of the population is Multiracial. Harper County ranks 39th statewide in terms of Multiracial residents as a share of the population, out of 105 counties.
Since the 2020 Census, Harper County's Multiracial population has declined by an estimated 4.3%. Multiracial residents' share of Harper County's population has remained roughly unchanged at 4.2%.
Harper County is more Multiracial than neighboring Barber County (2.5% Multiracial). Harper County is less Multiracial than neighboring Kingman County (4.4% Multiracial), Grant County (5.5% Multiracial), Alfalfa County (7% Multiracial), and Sumner County (4.7% 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.