Knoxville, IA Demographics

A map of Knoxville's Population by Race

Knoxville, Iowa has an estimated population of 7,473, a slight decrease from the 7,595 recorded in the 2020 Census. The population is 93.0% White, 3.0% Multiracial, 1.9% Hispanic, 1.5% Asian, 0.3% Black, and 0.3% Native American/Other. This demographic dot map shows the population of Knoxville, with one dot drawn for each person counted by the Census, color-coded by race.

Knoxville has become less 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 Knoxville, that probability was 16.4% in 2020 and 13.3% in the most recent ACS estimates.

Knoxville is ranked the 54th most populous place in Iowa, out of 1,026 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). Knoxville was ranked the 52nd most populous place in the 2020 Census.

Knoxville's White Population

6,953 residents of Knoxville, or 93.0% of the population, identify as White. The share of White residents in Knoxville is considerably higher than in Iowa overall, where 82.3% of the population is White. Knoxville ranks 661st statewide in terms of White residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Knoxville's White population has remained roughly the same. White residents' share of Knoxville's population has increased from 91.3% to 93.0%.

Knoxville is more White than neighboring Harvey (86.8% White), and Pleasantville (88.7% White). Knoxville is less White than neighboring Melcher-Dallas (93.5% White), Monroe (95.9% White), and Pella (93.7% White).

Knoxville's Black Population

20 residents of Knoxville, or 0.3% of the population, identify as Black. The share of Black residents in Knoxville is slightly lower than in Iowa overall, where 3.8% of the population is Black. Knoxville ranks 141st statewide in terms of Black residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Knoxville's Black population has declined by an estimated 81.7%. Black residents' share of Knoxville's population has decreased from 1.4% to 0.3%.

Knoxville is more Black than neighboring Melcher-Dallas (0% Black), Harvey (0% Black), and Monroe (0.1% Black). Knoxville is less Black than neighboring Pleasantville (1.2% Black), and Pella (0.4% Black).

Knoxville's Asian Population

111 residents of Knoxville, or 1.5% of the population, identify as Asian. The share of Asian residents in Knoxville is comparable to the share in Iowa overall, where 2.5% of the population is Asian. Knoxville ranks 301st statewide in terms of Asian residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Knoxville's Asian population has grown by an estimated 208.3%. Asian residents' share of Knoxville's population has increased from 0.5% to 1.5%.

Knoxville is more Asian than neighboring Melcher-Dallas (0% Asian), Pleasantville (1.1% Asian), and Pella (1.3% Asian). Knoxville is less Asian than neighboring Harvey (3.4% Asian).

Knoxville's Hispanic Population

141 residents of Knoxville, or 1.9% of the population, identify as Hispanic. The share of Hispanic residents in Knoxville is lower than in Iowa overall, where 7.3% of the population is Hispanic. Knoxville ranks 546th statewide in terms of Hispanic residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Knoxville's Hispanic population has declined by an estimated 21.7%. Hispanic residents' share of Knoxville's population has decreased from 2.4% to 1.9%.

Knoxville is more Hispanic than neighboring Monroe (1.3% Hispanic). Knoxville is less Hispanic than neighboring Melcher-Dallas (4.8% Hispanic), Harvey (5.2% Hispanic), Pleasantville (2% Hispanic), and Pella (3.2% Hispanic).

Knoxville's Native American/Other Population

24 residents of Knoxville, or 0.3% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Knoxville is comparable to the share in Iowa overall, where 0.6% of the population is Native American/Other. Knoxville ranks 221st statewide in terms of Native American/Other residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Knoxville's Native American/Other population has declined by an estimated 54.7%. Native American/Other residents' share of Knoxville's population has remained roughly unchanged at 0.3%.

Knoxville is more Native American/Other than neighboring Melcher-Dallas (0% Native American/Other), Harvey (0% Native American/Other), and Pella (0.2% Native American/Other). Knoxville is less Native American/Other than neighboring Pleasantville (0.9% Native American/Other).

Knoxville's Multiracial Population

224 residents of Knoxville, or 3.0% of the population, identify as Multiracial. The share of Multiracial residents in Knoxville is comparable to the share in Iowa overall, where 3.5% of the population is Multiracial. Knoxville ranks 252nd statewide in terms of Multiracial residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Knoxville's Multiracial population has declined by an estimated 20.0%. Multiracial residents' share of Knoxville's population has decreased from 3.7% to 3.0%.

Knoxville is more Multiracial than neighboring Melcher-Dallas (1.7% Multiracial), Monroe (0.8% Multiracial), and Pella (1.3% Multiracial). Knoxville is less Multiracial than neighboring Harvey (4.6% Multiracial), and Pleasantville (6.1% 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.