Bethalto, IL Demographics

A map of Bethalto's Population by Race

Bethalto, Illinois has an estimated population of 9,239, a less than 1% change from the 9,310 recorded in the 2020 Census. The population is 92.1% White, 5.6% Multiracial, 1.1% Black, 0.7% Asian, 0.3% Hispanic, and 0.3% Native American/Other. This demographic dot map shows the population of Bethalto, with one dot drawn for each person counted by the Census, color-coded by race.

Bethalto 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 Bethalto, that probability was 18.1% in 2020 and 14.9% in the most recent ACS estimates.

Bethalto is ranked the 237th 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). Bethalto was ranked the 235th most populous place in the 2020 Census.

Bethalto's White Population

8,505 residents of Bethalto, or 92.1% of the population, identify as White. The share of White residents in Bethalto is significantly higher than in Illinois overall, where 58.1% of the population is White. Bethalto ranks 754th statewide in terms of White residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Bethalto's White population has grown by an estimated 1.1%. White residents' share of Bethalto's population has increased from 90.3% to 92.1%.

Bethalto is more White than neighboring Wood River (86.6% White), and East Alton (88.5% White). Bethalto is less White than neighboring Rosewood Heights (95% White), Moro (100% White), and Roxana (94.4% White).

Bethalto's Black Population

99 residents of Bethalto, or 1.1% of the population, identify as Black. The share of Black residents in Bethalto is considerably lower than in Illinois overall, where 13.3% of the population is Black. Bethalto ranks 393rd statewide in terms of Black residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Bethalto's Black population has declined by an estimated 40.4%. Black residents' share of Bethalto's population has decreased from 1.8% to 1.1%.

Bethalto is more Black than neighboring Rosewood Heights (0% Black), Moro (0% Black), and East Alton (0.8% Black). Bethalto is less Black than neighboring Wood River (5.1% Black).

Bethalto's Asian Population

63 residents of Bethalto, or 0.7% of the population, identify as Asian. The share of Asian residents in Bethalto is lower than in Illinois overall, where 5.9% of the population is Asian. Bethalto ranks 641st statewide in terms of Asian residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Bethalto's Asian population has grown by an estimated 37.0%. Asian residents' share of Bethalto's population has remained roughly unchanged at 0.7%.

Bethalto is more Asian than neighboring Rosewood Heights (0% Asian), Moro (0% Asian), Wood River (0% Asian), East Alton (0% Asian), and Roxana (0.1% Asian).

Bethalto's Hispanic Population

29 residents of Bethalto, or 0.3% of the population, identify as Hispanic. The share of Hispanic residents in Bethalto is significantly lower than in Illinois overall, where 18.8% of the population is Hispanic. Bethalto ranks 829th statewide in terms of Hispanic residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Bethalto's Hispanic population has declined by an estimated 87.8%. Hispanic residents' share of Bethalto's population has decreased from 2.6% to 0.3%.

Bethalto is more Hispanic than neighboring Moro (0% Hispanic). Bethalto is less Hispanic than neighboring Rosewood Heights (1.6% Hispanic), Wood River (4% Hispanic), East Alton (3.8% Hispanic), and Roxana (2% Hispanic).

Bethalto's Native American/Other Population

30 residents of Bethalto, 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 Bethalto is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. Bethalto ranks 745th statewide in terms of Native American/Other residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Bethalto's Native American/Other population has declined by an estimated 14.3%. Native American/Other residents' share of Bethalto's population has remained roughly unchanged at 0.3%.

Bethalto is more Native American/Other than neighboring Rosewood Heights (0% Native American/Other), Moro (0% Native American/Other), East Alton (0% Native American/Other), and Roxana (0% Native American/Other). Bethalto is less Native American/Other than neighboring Wood River (0.5% Native American/Other).

Bethalto's Multiracial Population

513 residents of Bethalto, or 5.6% of the population, identify as Multiracial. The share of Multiracial residents in Bethalto is slightly higher than in Illinois overall, where 3.4% of the population is Multiracial. Bethalto ranks 389th statewide in terms of Multiracial residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Bethalto's Multiracial population has grown by an estimated 23.9%. Multiracial residents' share of Bethalto's population has increased from 4.4% to 5.6%.

Bethalto is more Multiracial than neighboring Rosewood Heights (3.4% Multiracial), Moro (0% Multiracial), Wood River (3.8% Multiracial), and Roxana (2.4% Multiracial). Bethalto is less Multiracial than neighboring East Alton (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.