Dahlgren, IL Demographics

A map of Dahlgren's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	588	476	98.8%	94.4%
Asian	7	2	1.2%	0.4%
Black	0	2	0.0%	0.4%
Hispanic	0	4	0.0%	0.8%
Native American/Other	0	0	0.0%	0.0%
Multiracial	0	20	0.0%	4.0%

Dahlgren, Illinois has an estimated population of 595, a large increase from the 504 recorded in the 2020 Census. The population is 98.8% White, 1.2% Asian, 0.0% Black, 0.0% Hispanic, 0.0% Native American/Other, and 0.0% Multiracial. This demographic dot map shows the population of Dahlgren, with one dot drawn for each person counted by the Census, color-coded by race.

Dahlgren has become considerably 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 Dahlgren, that probability was 10.6% in 2020 and 2.3% in the most recent ACS estimates.

Dahlgren is ranked the 876th 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). Dahlgren was ranked the 920th most populous place in the 2020 Census.

Dahlgren's White Population

588 residents of Dahlgren, or 98.8% of the population, identify as White. The share of White residents in Dahlgren is significantly higher than in Illinois overall, where 58.1% of the population is White. Dahlgren ranks 259th statewide in terms of White residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Dahlgren's White population has grown by an estimated 23.5%. White residents' share of Dahlgren's population has increased from 94.4% to 98.8%.

Dahlgren is more White than neighboring Belle Rive (84.3% White), Opdyke (98.4% White), Bluford (96.9% White), and Keenes (94.8% White). Dahlgren is less White than neighboring Belle Prairie City (100% White).

Dahlgren's Black Population

0 residents of Dahlgren, or 0.0% of the population, identify as Black. The share of Black residents in Dahlgren is considerably lower than in Illinois overall, where 13.3% of the population is Black. Dahlgren ranks 916th statewide in terms of Black residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Dahlgren's Black population has declined by an estimated 100.0%. Black residents' share of Dahlgren's population has remained roughly unchanged at 0.0%.

Dahlgren's Asian Population

7 residents of Dahlgren, or 1.2% of the population, identify as Asian. The share of Asian residents in Dahlgren is slightly lower than in Illinois overall, where 5.9% of the population is Asian. Dahlgren ranks 727th statewide in terms of Asian residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Dahlgren's Asian population has grown by an estimated 250.0%. Asian residents' share of Dahlgren's population has increased from 0.4% to 1.2%.

Dahlgren is more Asian than neighboring Belle Rive (0% Asian), Opdyke (0% Asian), Belle Prairie City (0% Asian), Bluford (0% Asian), and Keenes (0% Asian).

Dahlgren's Hispanic Population

0 residents of Dahlgren, or 0.0% of the population, identify as Hispanic. The share of Hispanic residents in Dahlgren is significantly lower than in Illinois overall, where 18.8% of the population is Hispanic. Dahlgren ranks 1292nd statewide in terms of Hispanic residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Dahlgren's Hispanic population has declined by an estimated 100.0%. Hispanic residents' share of Dahlgren's population has decreased from 0.8% to 0.0%.

Dahlgren is less Hispanic than neighboring Belle Rive (10.2% Hispanic), Opdyke (0.8% Hispanic), and Bluford (2.1% Hispanic).

Dahlgren's Native American/Other Population

0 residents of Dahlgren, 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 Dahlgren is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. Dahlgren ranks 1139th statewide in terms of Native American/Other residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Dahlgren's Native American/Other population has grown from 0 to an estimated 0. Native American/Other residents' share of Dahlgren's population has remained roughly unchanged at 0.0%.

Dahlgren is less Native American/Other than neighboring Belle Rive (0.8% Native American/Other), and Bluford (0.6% Native American/Other).

Dahlgren's Multiracial Population

0 residents of Dahlgren, or 0.0% of the population, identify as Multiracial. The share of Multiracial residents in Dahlgren is slightly lower than in Illinois overall, where 3.4% of the population is Multiracial. Dahlgren ranks 544th statewide in terms of Multiracial residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Dahlgren's Multiracial population has declined by an estimated 100.0%. Multiracial residents' share of Dahlgren's population has decreased from 4.0% to 0.0%.

Dahlgren is less Multiracial than neighboring Belle Rive (4.7% Multiracial), Opdyke (0.8% Multiracial), Bluford (0.4% Multiracial), and Keenes (5.2% 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.