Scott County Demographics

A map of Scott County's Population by Race

Scott County, Iowa has an estimated population of 174,608, a less than 1% change from the 174,669 recorded in the 2020 Census. The population is 77.0% White, 7.4% Hispanic, 7.1% Black, 5.1% Multiracial, 2.8% Asian, and 0.6% Native American/Other. This demographic dot map shows the population of Scott County, with one dot drawn for each person counted by the Census, color-coded by race.

Scott is about as racially diverse as it was in the 2020 Census. It is considerably more 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 Scott County, that probability was 39.2% in 2020 and 39.3% in the most recent ACS estimates.

Scott County is ranked the 3rd most populous county in Iowa, out of 99 counties. Scott County was ranked the 3rd most populous county in the 2020 Census.

Scott County's White Population

134,498 residents of Scott County, or 77.0% of the population, identify as White. The share of White residents in Scott County is lower than in Iowa overall, where 82.3% of the population is White. Scott County ranks 91st statewide in terms of White residents as a share of the population, out of 99 counties.

Since the 2020 Census, Scott County's White population has remained roughly the same. White residents' share of Scott County's population has remained roughly unchanged at 77.0%.

Scott County is more White than neighboring Rock Island County (67.4% White), and Muscatine County (75% White). Scott County is less White than neighboring Clinton County (89% White), Mercer County (93.1% White), and Cedar County (93.2% White).

Scott County's Black Population

12,341 residents of Scott County, or 7.1% of the population, identify as Black. The share of Black residents in Scott County is slightly higher than in Iowa overall, where 3.8% of the population is Black. Scott County ranks 3rd statewide in terms of Black residents as a share of the population, out of 99 counties.

Since the 2020 Census, Scott County's Black population has declined by an estimated 9.9%. Black residents' share of Scott County's population has decreased from 7.8% to 7.1%.

Scott County is more Black than neighboring Clinton County (3.1% Black), Mercer County (0.6% Black), Muscatine County (2.2% Black), and Cedar County (0.4% Black). Scott County is less Black than neighboring Rock Island County (10.9% Black).

Scott County's Asian Population

4,959 residents of Scott County, or 2.8% of the population, identify as Asian. The share of Asian residents in Scott County is comparable to the share in Iowa overall, where 2.5% of the population is Asian. Scott County ranks 9th statewide in terms of Asian residents as a share of the population, out of 99 counties.

Since the 2020 Census, Scott County's Asian population has grown by an estimated 2.8%. Asian residents' share of Scott County's population has remained roughly unchanged at 2.8%.

Scott County is more Asian than neighboring Rock Island County (2.6% Asian), Clinton County (0.7% Asian), Mercer County (0.4% Asian), Muscatine County (0.6% Asian), and Cedar County (0.5% Asian).

Scott County's Hispanic Population

12,902 residents of Scott County, or 7.4% of the population, identify as Hispanic. The share of Hispanic residents in Scott County is comparable to the share in Iowa overall, where 7.3% of the population is Hispanic. Scott County ranks 21st statewide in terms of Hispanic residents as a share of the population, out of 99 counties.

Since the 2020 Census, Scott County's Hispanic population has grown by an estimated 6.7%. Hispanic residents' share of Scott County's population has increased from 6.9% to 7.4%.

Scott County is more Hispanic than neighboring Clinton County (3.6% Hispanic), Mercer County (3.4% Hispanic), and Cedar County (2.8% Hispanic). Scott County is less Hispanic than neighboring Rock Island County (14.2% Hispanic), and Muscatine County (18.8% Hispanic).

Scott County's Native American/Other Population

1,044 residents of Scott 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 Scott County is comparable to the share in Iowa overall, where 0.6% of the population is Native American/Other. Scott County ranks 39th statewide in terms of Native American/Other residents as a share of the population, out of 99 counties.

Since the 2020 Census, Scott County's Native American/Other population has grown by an estimated 15.5%. Native American/Other residents' share of Scott County's population has remained roughly unchanged at 0.6%.

Scott County is more Native American/Other than neighboring Rock Island County (0.5% Native American/Other), Clinton County (0.2% Native American/Other), Mercer County (0.1% Native American/Other), Muscatine County (0.3% Native American/Other), and Cedar County (0.4% Native American/Other).

Scott County's Multiracial Population

8,864 residents of Scott County, or 5.1% of the population, identify as Multiracial. The share of Multiracial residents in Scott County is comparable to the share in Iowa overall, where 3.5% of the population is Multiracial. Scott County ranks 1st statewide in terms of Multiracial residents as a share of the population, out of 99 counties.

Since the 2020 Census, Scott County's Multiracial population has grown by an estimated 3.4%. Multiracial residents' share of Scott County's population has remained roughly unchanged at 5.1%.

Scott County is more Multiracial than neighboring Rock Island County (4.4% Multiracial), Clinton County (3.4% Multiracial), Mercer County (2.4% Multiracial), Muscatine County (3.1% Multiracial), and Cedar County (2.8% 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.