Montgomery, IL Demographics

A map of Montgomery's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	11,580	9,929	53.8%	49.0%
Hispanic	6,896	6,868	32.1%	33.9%
Black	1,701	1,901	7.9%	9.4%
Multiracial	785	832	3.6%	4.1%
Asian	442	640	2.1%	3.2%
Native American/Other	111	92	0.5%	0.5%

Montgomery, Illinois has an estimated population of 21,515, an increase from the 20,262 recorded in the 2020 Census. The population is 53.8% White, 32.1% Hispanic, 7.9% Black, 3.6% Multiracial, 2.1% Asian, and 0.5% Native American/Other. This demographic dot map shows the population of Montgomery, with one dot drawn for each person counted by the Census, color-coded by race.

Montgomery has become less racially diverse since the 2020 Census. It is slightly 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 Montgomery, that probability was 63.3% in 2020 and 60.0% in the most recent ACS estimates.

Montgomery is ranked the 112th 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). Montgomery was ranked the 122nd most populous place in the 2020 Census.

Montgomery's White Population

11,580 residents of Montgomery, or 53.8% of the population, identify as White. The share of White residents in Montgomery is slightly lower than in Illinois overall, where 58.1% of the population is White. Montgomery ranks 1358th statewide in terms of White residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Montgomery's White population has grown by an estimated 16.6%. White residents' share of Montgomery's population has increased from 49.0% to 53.8%.

Montgomery is more White than neighboring Boulder Hill (48.9% White), and Aurora (32.2% White). Montgomery is less White than neighboring Oswego (62.4% White), Prestbury (86% White), and North Aurora (66.8% White).

Montgomery's Black Population

1,701 residents of Montgomery, or 7.9% of the population, identify as Black. The share of Black residents in Montgomery is lower than in Illinois overall, where 13.3% of the population is Black. Montgomery ranks 142nd statewide in terms of Black residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Montgomery's Black population has declined by an estimated 10.5%. Black residents' share of Montgomery's population has decreased from 9.4% to 7.9%.

Montgomery is more Black than neighboring Boulder Hill (2.2% Black), and Prestbury (2% Black). Montgomery is less Black than neighboring Oswego (10.1% Black), Aurora (10.7% Black), and North Aurora (8.3% Black).

Montgomery's Asian Population

442 residents of Montgomery, or 2.1% of the population, identify as Asian. The share of Asian residents in Montgomery is slightly lower than in Illinois overall, where 5.9% of the population is Asian. Montgomery ranks 169th statewide in terms of Asian residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Montgomery's Asian population has declined by an estimated 30.9%. Asian residents' share of Montgomery's population has decreased from 3.2% to 2.1%.

Montgomery is more Asian than neighboring Boulder Hill (1.7% Asian), Prestbury (0% Asian), and North Aurora (1.9% Asian). Montgomery is less Asian than neighboring Oswego (4.4% Asian), and Aurora (12.2% Asian).

Montgomery's Hispanic Population

6,896 residents of Montgomery, or 32.1% of the population, identify as Hispanic. The share of Hispanic residents in Montgomery is considerably higher than in Illinois overall, where 18.8% of the population is Hispanic. Montgomery ranks 60th statewide in terms of Hispanic residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Montgomery's Hispanic population has remained roughly the same. Hispanic residents' share of Montgomery's population has decreased from 33.9% to 32.1%.

Montgomery is more Hispanic than neighboring Oswego (17.9% Hispanic), Prestbury (7.7% Hispanic), and North Aurora (20.5% Hispanic). Montgomery is less Hispanic than neighboring Boulder Hill (43.8% Hispanic), and Aurora (41.6% Hispanic).

Montgomery's Native American/Other Population

111 residents of Montgomery, or 0.5% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Montgomery is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. Montgomery ranks 610th statewide in terms of Native American/Other residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Montgomery's Native American/Other population has grown by an estimated 20.7%. Native American/Other residents' share of Montgomery's population has remained roughly unchanged at 0.5%.

Montgomery is more Native American/Other than neighboring Boulder Hill (0.1% Native American/Other), Oswego (0.2% Native American/Other), Prestbury (0% Native American/Other), and North Aurora (0.2% Native American/Other). Montgomery is less Native American/Other than neighboring Aurora (0.6% Native American/Other).

Montgomery's Multiracial Population

785 residents of Montgomery, or 3.6% of the population, identify as Multiracial. The share of Multiracial residents in Montgomery is comparable to the share in Illinois overall, where 3.4% of the population is Multiracial. Montgomery ranks 490th statewide in terms of Multiracial residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Montgomery's Multiracial population has declined by an estimated 5.6%. Multiracial residents' share of Montgomery's population has remained roughly unchanged at 3.6%.

Montgomery is more Multiracial than neighboring Boulder Hill (3.2% Multiracial), Aurora (2.7% Multiracial), and North Aurora (2.2% Multiracial). Montgomery is less Multiracial than neighboring Oswego (4.9% Multiracial), and Prestbury (4.3% 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.