Lanark, IL Demographics

A map of Lanark's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	1,441	1,399	93.5%	93.0%
Hispanic	66	38	4.3%	2.5%
Multiracial	33	47	2.1%	3.1%
Black	1	7	0.1%	0.5%
Asian	0	8	0.0%	0.5%
Native American/Other	0	5	0.0%	0.3%

Lanark, Illinois has an estimated population of 1,541, a slight increase from the 1,504 recorded in the 2020 Census. The population is 93.5% White, 4.3% Hispanic, 2.1% Multiracial, 0.1% Black, 0.0% Asian, and 0.0% Native American/Other. This demographic dot map shows the population of Lanark, with one dot drawn for each person counted by the Census, color-coded by race.

Lanark has become slightly 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 Lanark, that probability was 13.3% in 2020 and 12.3% in the most recent ACS estimates.

Lanark is ranked the 574th 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). Lanark was ranked the 572nd most populous place in the 2020 Census.

Lanark's White Population

1,441 residents of Lanark, or 93.5% of the population, identify as White. The share of White residents in Lanark is significantly higher than in Illinois overall, where 58.1% of the population is White. Lanark ranks 473rd statewide in terms of White residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Lanark's White population has grown by an estimated 3.0%. White residents' share of Lanark's population has increased from 93.0% to 93.5%.

Lanark is more White than neighboring Chadwick (89.8% White), and Mount Carroll (93.4% White). Lanark is less White than neighboring Lake Carroll (99.8% White), and Milledgeville (97.1% White).

Lanark's Black Population

1 residents of Lanark, or 0.1% of the population, identify as Black. The share of Black residents in Lanark is considerably lower than in Illinois overall, where 13.3% of the population is Black. Lanark ranks 868th statewide in terms of Black residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Lanark's Black population has declined by an estimated 85.7%. Black residents' share of Lanark's population has remained roughly unchanged at 0.1%.

Lanark is more Black than neighboring Lake Carroll (0% Black), and Chadwick (0% Black). Lanark is less Black than neighboring Mount Carroll (1.1% Black), and Milledgeville (0.2% Black).

Lanark's Asian Population

0 residents of Lanark, or 0.0% of the population, identify as Asian. The share of Asian residents in Lanark is lower than in Illinois overall, where 5.9% of the population is Asian. Lanark ranks 607th statewide in terms of Asian residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Lanark's Asian population has declined by an estimated 100.0%. Asian residents' share of Lanark's population has decreased from 0.5% to 0.0%.

Lanark is less Asian than neighboring Chadwick (2.4% Asian), Shannon (0.4% Asian), and Mount Carroll (1.5% Asian).

Lanark's Hispanic Population

66 residents of Lanark, or 4.3% of the population, identify as Hispanic. The share of Hispanic residents in Lanark is considerably lower than in Illinois overall, where 18.8% of the population is Hispanic. Lanark ranks 836th statewide in terms of Hispanic residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Lanark's Hispanic population has grown by an estimated 73.7%. Hispanic residents' share of Lanark's population has increased from 2.5% to 4.3%.

Lanark is more Hispanic than neighboring Lake Carroll (0% Hispanic), Shannon (1.9% Hispanic), Mount Carroll (2.7% Hispanic), and Milledgeville (2.4% Hispanic). Lanark is less Hispanic than neighboring Chadwick (6.8% Hispanic).

Lanark's Native American/Other Population

0 residents of Lanark, 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 Lanark is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. Lanark ranks 829th statewide in terms of Native American/Other residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Lanark's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Lanark's population has remained roughly unchanged at 0.0%.

Lanark is less Native American/Other than neighboring Shannon (0.6% Native American/Other), and Mount Carroll (0.3% Native American/Other).

Lanark's Multiracial Population

33 residents of Lanark, or 2.1% of the population, identify as Multiracial. The share of Multiracial residents in Lanark is comparable to the share in Illinois overall, where 3.4% of the population is Multiracial. Lanark ranks 876th statewide in terms of Multiracial residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Lanark's Multiracial population has declined by an estimated 29.8%. Multiracial residents' share of Lanark's population has decreased from 3.1% to 2.1%.

Lanark is more Multiracial than neighboring Lake Carroll (0.2% Multiracial), Chadwick (1% Multiracial), Mount Carroll (1.1% Multiracial), and Milledgeville (0.3% Multiracial). Lanark is less Multiracial than neighboring Shannon (3.4% 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.