Mason City, IL Demographics

A map of Mason City's Population by Race

Mason City, Illinois has an estimated population of 2,159, an increase from the 2,077 recorded in the 2020 Census. The population is 95.5% White, 2.8% Multiracial, 0.8% Black, 0.8% Hispanic, 0.0% Asian, and 0.0% Native American/Other. This demographic dot map shows the population of Mason City, with one dot drawn for each person counted by the Census, color-coded by race.

Mason City 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 Mason City, that probability was 9.6% in 2020 and 8.7% in the most recent ACS estimates.

Mason City is ranked the 489th 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). Mason City was ranked the 493rd most populous place in the 2020 Census.

Mason City's White Population

2,062 residents of Mason City, or 95.5% of the population, identify as White. The share of White residents in Mason City is significantly higher than in Illinois overall, where 58.1% of the population is White. Mason City ranks 186th statewide in terms of White residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Mason City's White population has grown by an estimated 4.5%. White residents' share of Mason City's population has increased from 95.0% to 95.5%.

Mason City is more White than neighboring New Holland (90.3% White), San Jose (72.7% White), and Easton (94.7% White). Mason City is less White than neighboring Greenview (96.1% White), and Middletown (96.4% White).

Mason City's Black Population

18 residents of Mason City, or 0.8% of the population, identify as Black. The share of Black residents in Mason City is considerably lower than in Illinois overall, where 13.3% of the population is Black. Mason City ranks 837th statewide in terms of Black residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Mason City's Black population has grown by an estimated 63.6%. Black residents' share of Mason City's population has remained roughly unchanged at 0.8%.

Mason City is more Black than neighboring New Holland (0% Black), Greenview (0% Black), San Jose (0% Black), Easton (0% Black), and Middletown (0% Black).

Mason City's Asian Population

0 residents of Mason City, or 0.0% of the population, identify as Asian. The share of Asian residents in Mason City is lower than in Illinois overall, where 5.9% of the population is Asian. Mason City ranks 742nd statewide in terms of Asian residents as a share of the population, out of 1,461 places.

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

Mason City is less Asian than neighboring Greenview (0.4% Asian), and San Jose (3.2% Asian).

Mason City's Hispanic Population

18 residents of Mason City, or 0.8% of the population, identify as Hispanic. The share of Hispanic residents in Mason City is significantly lower than in Illinois overall, where 18.8% of the population is Hispanic. Mason City ranks 1232nd statewide in terms of Hispanic residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Mason City's Hispanic population has declined by an estimated 18.2%. Hispanic residents' share of Mason City's population has remained roughly unchanged at 0.8%.

Mason City is more Hispanic than neighboring New Holland (0% Hispanic), and Middletown (0.4% Hispanic). Mason City is less Hispanic than neighboring Greenview (1.2% Hispanic), San Jose (4.8% Hispanic), and Easton (4.6% Hispanic).

Mason City's Native American/Other Population

0 residents of Mason City, 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 Mason City is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. Mason City ranks 1032nd statewide in terms of Native American/Other residents as a share of the population, out of 1,461 places.

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

Mason City is less Native American/Other than neighboring Greenview (0.2% Native American/Other).

Mason City's Multiracial Population

61 residents of Mason City, or 2.8% of the population, identify as Multiracial. The share of Multiracial residents in Mason City is comparable to the share in Illinois overall, where 3.4% of the population is Multiracial. Mason City ranks 1005th statewide in terms of Multiracial residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Mason City's Multiracial population has grown by an estimated 5.2%. Multiracial residents' share of Mason City's population has remained roughly unchanged at 2.8%.

Mason City is more Multiracial than neighboring Greenview (2.1% Multiracial), and Easton (0.7% Multiracial). Mason City is less Multiracial than neighboring New Holland (9.7% Multiracial), San Jose (19.2% Multiracial), and Middletown (3.2% 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.