Rockbridge, IL Demographics

A map of Rockbridge's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	98	165	67.1%	94.3%
Black	41	0	28.1%	0.0%
Multiracial	4	7	2.7%	4.0%
Hispanic	3	3	2.1%	1.7%
Asian	0	0	0.0%	0.0%
Native American/Other	0	0	0.0%	0.0%

Rockbridge, Illinois has an estimated population of 146, a large decrease from the 175 recorded in the 2020 Census. The population is 67.1% White, 28.1% Black, 2.7% Multiracial, 2.1% Hispanic, 0.0% Asian, and 0.0% Native American/Other. This demographic dot map shows the population of Rockbridge, with one dot drawn for each person counted by the Census, color-coded by race.

Rockbridge has become considerably more 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 Rockbridge, that probability was 10.9% in 2020 and 46.9% in the most recent ACS estimates.

Rockbridge is ranked the 1276th 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). Rockbridge was ranked the 1223rd most populous place in the 2020 Census.

Rockbridge's White Population

98 residents of Rockbridge, or 67.1% of the population, identify as White. The share of White residents in Rockbridge is higher than in Illinois overall, where 58.1% of the population is White. Rockbridge ranks 281st statewide in terms of White residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Rockbridge's White population has declined by an estimated 40.6%. White residents' share of Rockbridge's population has decreased from 94.3% to 67.1%.

Rockbridge is less White than neighboring Greenfield (94.8% White), Medora (91.5% White), Fidelity (100% White), Chesterfield (99% White), and Kane (93% White).

Rockbridge's Black Population

41 residents of Rockbridge, or 28.1% of the population, identify as Black. The share of Black residents in Rockbridge is considerably higher than in Illinois overall, where 13.3% of the population is Black. Rockbridge ranks 1104th statewide in terms of Black residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Rockbridge's Black population has grown from 0 to an estimated 41. Black residents' share of Rockbridge's population has increased from 0.0% to 28.1%.

Rockbridge is more Black than neighboring Greenfield (0% Black), Medora (0% Black), Fidelity (0% Black), Chesterfield (0% Black), and Kane (0% Black).

Rockbridge's Asian Population

0 residents of Rockbridge, or 0.0% of the population, identify as Asian. The share of Asian residents in Rockbridge is lower than in Illinois overall, where 5.9% of the population is Asian. Rockbridge ranks 1029th statewide in terms of Asian residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Rockbridge's Asian population has grown from 0 to an estimated 0. Asian residents' share of Rockbridge's population has remained roughly unchanged at 0.0%.

Rockbridge is less Asian than neighboring Kane (1% Asian).

Rockbridge's Hispanic Population

3 residents of Rockbridge, or 2.1% of the population, identify as Hispanic. The share of Hispanic residents in Rockbridge is significantly lower than in Illinois overall, where 18.8% of the population is Hispanic. Rockbridge ranks 1048th statewide in terms of Hispanic residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Rockbridge's Hispanic population has remained roughly the same. Hispanic residents' share of Rockbridge's population has remained roughly unchanged at 2.1%.

Rockbridge is more Hispanic than neighboring Fidelity (0% Hispanic), Chesterfield (0% Hispanic), and Kane (1% Hispanic). Rockbridge is less Hispanic than neighboring Greenfield (3% Hispanic), and Medora (5.1% Hispanic).

Rockbridge's Native American/Other Population

0 residents of Rockbridge, 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 Rockbridge is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. Rockbridge 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, Rockbridge's Native American/Other population has grown from 0 to an estimated 0. Native American/Other residents' share of Rockbridge's population has remained roughly unchanged at 0.0%.

Rockbridge is less Native American/Other than neighboring Greenfield (0.3% Native American/Other), Medora (0.6% Native American/Other), and Kane (2.5% Native American/Other).

Rockbridge's Multiracial Population

4 residents of Rockbridge, or 2.7% of the population, identify as Multiracial. The share of Multiracial residents in Rockbridge is comparable to the share in Illinois overall, where 3.4% of the population is Multiracial. Rockbridge ranks 532nd statewide in terms of Multiracial residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Rockbridge's Multiracial population has declined by an estimated 42.9%. Multiracial residents' share of Rockbridge's population has decreased from 4.0% to 2.7%.

Rockbridge is more Multiracial than neighboring Greenfield (1.9% Multiracial), Fidelity (0% Multiracial), Chesterfield (1% Multiracial), and Kane (2.5% Multiracial). Rockbridge is less Multiracial than neighboring Medora (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.