Onarga, IL Demographics

A map of Onarga's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
Hispanic	862	662	60.3%	49.7%
White	537	608	37.6%	45.6%
Black	18	20	1.3%	1.5%
Multiracial	7	35	0.5%	2.6%
Asian	3	6	0.2%	0.5%
Native American/Other	3	2	0.2%	0.2%

Onarga, Illinois has an estimated population of 1,430, an increase from the 1,333 recorded in the 2020 Census. The population is 60.3% Hispanic, 37.6% White, 1.3% Black, 0.5% Multiracial, 0.2% Asian, and 0.2% Native American/Other. This demographic dot map shows the population of Onarga, with one dot drawn for each person counted by the Census, color-coded by race.

Onarga has become less racially diverse since 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 Onarga, that probability was 54.4% in 2020 and 49.5% in the most recent ACS estimates.

Onarga is ranked the 597th 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). Onarga was ranked the 609th most populous place in the 2020 Census.

Onarga's White Population

537 residents of Onarga, or 37.6% of the population, identify as White. The share of White residents in Onarga is significantly lower than in Illinois overall, where 58.1% of the population is White. Onarga ranks 1371st statewide in terms of White residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Onarga's White population has declined by an estimated 11.7%. White residents' share of Onarga's population has decreased from 45.6% to 37.6%.

Onarga is less White than neighboring Gilman (76.6% White), Thawville (78.6% White), Danforth (91.8% White), Buckley (90.3% White), and Crescent City (90.8% White).

Onarga's Black Population

18 residents of Onarga, or 1.3% of the population, identify as Black. The share of Black residents in Onarga is considerably lower than in Illinois overall, where 13.3% of the population is Black. Onarga ranks 441st statewide in terms of Black residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Onarga's Black population has declined by an estimated 10.0%. Black residents' share of Onarga's population has remained roughly unchanged at 1.3%.

Onarga is more Black than neighboring Gilman (0.8% Black), Danforth (1% Black), and Crescent City (0% Black). Onarga is less Black than neighboring Thawville (1.9% Black), and Buckley (1.9% Black).

Onarga's Asian Population

3 residents of Onarga, or 0.2% of the population, identify as Asian. The share of Asian residents in Onarga is lower than in Illinois overall, where 5.9% of the population is Asian. Onarga ranks 678th statewide in terms of Asian residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Onarga's Asian population has declined by an estimated 50.0%. Asian residents' share of Onarga's population has remained roughly unchanged at 0.2%.

Onarga is more Asian than neighboring Danforth (0% Asian), and Crescent City (0% Asian). Onarga is less Asian than neighboring Gilman (0.3% Asian), Thawville (0.5% Asian), and Buckley (2.1% Asian).

Onarga's Hispanic Population

862 residents of Onarga, or 60.3% of the population, identify as Hispanic. The share of Hispanic residents in Onarga is significantly higher than in Illinois overall, where 18.8% of the population is Hispanic. Onarga ranks 24th statewide in terms of Hispanic residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Onarga's Hispanic population has grown by an estimated 30.2%. Hispanic residents' share of Onarga's population has increased from 49.7% to 60.3%.

Onarga is more Hispanic than neighboring Gilman (21.6% Hispanic), Thawville (15.7% Hispanic), Danforth (5.1% Hispanic), Buckley (2.8% Hispanic), and Crescent City (8.8% Hispanic).

Onarga's Native American/Other Population

3 residents of Onarga, or 0.2% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Onarga is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. Onarga ranks 1074th statewide in terms of Native American/Other residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Onarga's Native American/Other population has grown by an estimated 50.0%. Native American/Other residents' share of Onarga's population has remained roughly unchanged at 0.2%.

Onarga is more Native American/Other than neighboring Gilman (0% Native American/Other), Thawville (0% Native American/Other), Danforth (0% Native American/Other), Buckley (0% Native American/Other), and Crescent City (0% Native American/Other).

Onarga's Multiracial Population

7 residents of Onarga, or 0.5% of the population, identify as Multiracial. The share of Multiracial residents in Onarga is slightly lower than in Illinois overall, where 3.4% of the population is Multiracial. Onarga ranks 1080th statewide in terms of Multiracial residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Onarga's Multiracial population has declined by an estimated 80.0%. Multiracial residents' share of Onarga's population has decreased from 2.6% to 0.5%.

Onarga is more Multiracial than neighboring Crescent City (0.4% Multiracial). Onarga is less Multiracial than neighboring Gilman (0.7% Multiracial), Thawville (3.3% Multiracial), Danforth (2.1% Multiracial), and Buckley (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.