Olney, IL Demographics

A map of Olney's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	7,867	7,962	91.7%	91.5%
Multiracial	271	312	3.2%	3.6%
Hispanic	240	222	2.8%	2.6%
Native American/Other	89	37	1.0%	0.4%
Asian	67	104	0.8%	1.2%
Black	43	64	0.5%	0.7%

Olney, Illinois has an estimated population of 8,577, a slight decrease from the 8,701 recorded in the 2020 Census. The population is 91.7% White, 3.2% Multiracial, 2.8% Hispanic, 1.0% Native American/Other, 0.8% Asian, and 0.5% Black. This demographic dot map shows the population of Olney, with one dot drawn for each person counted by the Census, color-coded by race.

Olney is about as racially diverse as it was in the 2020 Census. It is considerably less diverse than Illinois overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Olney, that probability was 16.1% in 2020 and 15.7% in the most recent ACS estimates.

Olney is ranked the 254th most populous place in Illinois, out of 1,461 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). Olney was ranked the 251st most populous place in the 2020 Census.

Olney's White Population

7,867 residents of Olney, or 91.7% of the population, identify as White. The share of White residents in Olney is significantly higher than in Illinois overall, where 58.1% of the population is White. Olney ranks 659th statewide in terms of White residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Olney's White population has declined by an estimated 1.2%. White residents' share of Olney's population has remained roughly unchanged at 91.7%.

Olney is more White than neighboring Calhoun (90.3% White). Olney is less White than neighboring Dundas (100% White), Claremont (92.3% White), West Liberty (100% White), and Parkersburg (97.9% White).

Olney's Black Population

43 residents of Olney, or 0.5% of the population, identify as Black. The share of Black residents in Olney is considerably lower than in Illinois overall, where 13.3% of the population is Black. Olney ranks 705th statewide in terms of Black residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Olney's Black population has declined by an estimated 32.8%. Black residents' share of Olney's population has remained roughly unchanged at 0.5%.

Olney is more Black than neighboring Calhoun (0% Black), Dundas (0% Black), Claremont (0% Black), West Liberty (0% Black), and Parkersburg (0% Black).

Olney's Asian Population

67 residents of Olney, or 0.8% of the population, identify as Asian. The share of Asian residents in Olney is lower than in Illinois overall, where 5.9% of the population is Asian. Olney ranks 334th statewide in terms of Asian residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Olney's Asian population has declined by an estimated 35.6%. Asian residents' share of Olney's population has remained roughly unchanged at 0.8%.

Olney is more Asian than neighboring Calhoun (0% Asian), Dundas (0% Asian), Claremont (0% Asian), West Liberty (0% Asian), and Parkersburg (0% Asian).

Olney's Hispanic Population

240 residents of Olney, or 2.8% of the population, identify as Hispanic. The share of Hispanic residents in Olney is significantly lower than in Illinois overall, where 18.8% of the population is Hispanic. Olney ranks 830th statewide in terms of Hispanic residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Olney's Hispanic population has grown by an estimated 8.1%. Hispanic residents' share of Olney's population has remained roughly unchanged at 2.8%.

Olney is more Hispanic than neighboring Calhoun (0% Hispanic), Dundas (0% Hispanic), West Liberty (0% Hispanic), and Parkersburg (0% Hispanic). Olney is less Hispanic than neighboring Claremont (6.7% Hispanic).

Olney's Native American/Other Population

89 residents of Olney, or 1.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Olney is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. Olney ranks 667th statewide in terms of Native American/Other residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Olney's Native American/Other population has grown by an estimated 140.5%. Native American/Other residents' share of Olney's population has increased from 0.4% to 1.0%.

Olney is more Native American/Other than neighboring Calhoun (0% Native American/Other), Dundas (0% Native American/Other), Claremont (0% Native American/Other), West Liberty (0% Native American/Other), and Parkersburg (0% Native American/Other).

Olney's Multiracial Population

271 residents of Olney, or 3.2% of the population, identify as Multiracial. The share of Multiracial residents in Olney is comparable to the share in Illinois overall, where 3.4% of the population is Multiracial. Olney ranks 675th statewide in terms of Multiracial residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Olney's Multiracial population has declined by an estimated 13.1%. Multiracial residents' share of Olney's population has remained roughly unchanged at 3.2%.

Olney is more Multiracial than neighboring Dundas (0% Multiracial), Claremont (1% Multiracial), West Liberty (0% Multiracial), and Parkersburg (2.1% Multiracial). Olney is less Multiracial than neighboring Calhoun (9.7% 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.