Lucas County Demographics

A map of Lucas County's Population by Race

Lucas County, Iowa has an estimated population of 8,716, a less than 1% change from the 8,634 recorded in the 2020 Census. The population is 94.0% White, 2.9% Hispanic, 2.0% Multiracial, 0.8% Asian, 0.3% Black, and 0.0% Native American/Other. This demographic dot map shows the population of Lucas County, with one dot drawn for each person counted by the Census, color-coded by race.

Lucas has become slightly more racially diverse since the 2020 Census. It is considerably less diverse than Iowa overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Lucas County, that probability was 10.7% in 2020 and 11.5% in the most recent ACS estimates.

Lucas County is ranked the 83rd most populous county in Iowa, out of 99 counties. Lucas County was ranked the 85th most populous county in the 2020 Census.

Lucas County's White Population

8,192 residents of Lucas County, or 94.0% of the population, identify as White. The share of White residents in Lucas County is considerably higher than in Iowa overall, where 82.3% of the population is White. Lucas County ranks 16th statewide in terms of White residents as a share of the population, out of 99 counties.

Since the 2020 Census, Lucas County's White population has remained roughly the same. White residents' share of Lucas County's population has remained roughly unchanged at 94.0%.

Lucas County is more White than neighboring Wayne County (93.7% White), Marion County (93.3% White), Warren County (91.9% White), and Clarke County (77.5% White). Lucas County is less White than neighboring Monroe County (94.8% White).

Lucas County's Black Population

25 residents of Lucas County, or 0.3% of the population, identify as Black. The share of Black residents in Lucas County is slightly lower than in Iowa overall, where 3.8% of the population is Black. Lucas County ranks 92nd statewide in terms of Black residents as a share of the population, out of 99 counties.

Since the 2020 Census, Lucas County's Black population has grown by an estimated 38.9%. Black residents' share of Lucas County's population has remained roughly unchanged at 0.3%.

Lucas County is more Black than neighboring Wayne County (0.2% Black), and Clarke County (0.1% Black). Lucas County is less Black than neighboring Marion County (0.4% Black), Warren County (0.7% Black), and Monroe County (1.2% Black).

Lucas County's Asian Population

73 residents of Lucas County, or 0.8% of the population, identify as Asian. The share of Asian residents in Lucas County is comparable to the share in Iowa overall, where 2.5% of the population is Asian. Lucas County ranks 68th statewide in terms of Asian residents as a share of the population, out of 99 counties.

Since the 2020 Census, Lucas County's Asian population has grown by an estimated 151.7%. Asian residents' share of Lucas County's population has increased from 0.3% to 0.8%.

Lucas County is more Asian than neighboring Wayne County (0.1% Asian), Warren County (0.7% Asian), Clarke County (0.6% Asian), and Monroe County (0.5% Asian). Lucas County is less Asian than neighboring Marion County (1.4% Asian).

Lucas County's Hispanic Population

255 residents of Lucas County, or 2.9% of the population, identify as Hispanic. The share of Hispanic residents in Lucas County is slightly lower than in Iowa overall, where 7.3% of the population is Hispanic. Lucas County ranks 77th statewide in terms of Hispanic residents as a share of the population, out of 99 counties.

Since the 2020 Census, Lucas County's Hispanic population has grown by an estimated 28.8%. Hispanic residents' share of Lucas County's population has increased from 2.3% to 2.9%.

Lucas County is more Hispanic than neighboring Wayne County (1.2% Hispanic), Marion County (2.3% Hispanic), and Monroe County (2.1% Hispanic). Lucas County is less Hispanic than neighboring Warren County (3.7% Hispanic), and Clarke County (16.8% Hispanic).

Lucas County's Native American/Other Population

1 residents of Lucas 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 Lucas County is comparable to the share in Iowa overall, where 0.6% of the population is Native American/Other. Lucas County ranks 96th statewide in terms of Native American/Other residents as a share of the population, out of 99 counties.

Since the 2020 Census, Lucas County's Native American/Other population has declined by an estimated 91.7%. Native American/Other residents' share of Lucas County's population has remained roughly unchanged at 0.0%.

Lucas County is less Native American/Other than neighboring Marion County (0.3% Native American/Other), Warren County (0.2% Native American/Other), Clarke County (0.2% Native American/Other), and Monroe County (0.4% Native American/Other).

Lucas County's Multiracial Population

170 residents of Lucas County, or 2.0% of the population, identify as Multiracial. The share of Multiracial residents in Lucas County is comparable to the share in Iowa overall, where 3.5% of the population is Multiracial. Lucas County ranks 47th statewide in terms of Multiracial residents as a share of the population, out of 99 counties.

Since the 2020 Census, Lucas County's Multiracial population has declined by an estimated 23.8%. Multiracial residents' share of Lucas County's population has decreased from 2.6% to 2.0%.

Lucas County is more Multiracial than neighboring Monroe County (1.1% Multiracial). Lucas County is less Multiracial than neighboring Wayne County (4.8% Multiracial), Marion County (2.3% Multiracial), Warren County (2.8% Multiracial), and Clarke County (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.