Marathon, IA Demographics

A map of Marathon's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	183	202	78.2%	87.8%
Multiracial	41	4	17.5%	1.7%
Hispanic	10	21	4.3%	9.1%
Black	0	3	0.0%	1.3%
Asian	0	0	0.0%	0.0%
Native American/Other	0	0	0.0%	0.0%

Marathon, Iowa has an estimated population of 234, a slight increase from the 230 recorded in the 2020 Census. The population is 78.2% White, 17.5% Multiracial, 4.3% Hispanic, 0.0% Black, 0.0% Asian, and 0.0% Native American/Other. This demographic dot map shows the population of Marathon, with one dot drawn for each person counted by the Census, color-coded by race.

Marathon has become considerably more racially diverse since the 2020 Census. It is more diverse than Iowa overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Marathon, that probability was 22.0% in 2020 and 35.6% in the most recent ACS estimates.

Marathon is ranked the 670th most populous place in Iowa, out of 1,026 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). Marathon was ranked the 651st most populous place in the 2020 Census.

Marathon's White Population

183 residents of Marathon, or 78.2% of the population, identify as White. The share of White residents in Marathon is slightly lower than in Iowa overall, where 82.3% of the population is White. Marathon ranks 838th statewide in terms of White residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Marathon's White population has declined by an estimated 9.4%. White residents' share of Marathon's population has decreased from 87.8% to 78.2%.

Marathon is more White than neighboring Gillett Grove (70% White). Marathon is less White than neighboring Albert City (83.7% White), Webb (99% White), Laurens (86.8% White), and Sioux Rapids (87.1% White).

Marathon's Black Population

0 residents of Marathon, or 0.0% of the population, identify as Black. The share of Black residents in Marathon is slightly lower than in Iowa overall, where 3.8% of the population is Black. Marathon ranks 163rd statewide in terms of Black residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Marathon's Black population has declined by an estimated 100.0%. Black residents' share of Marathon's population has decreased from 1.3% to 0.0%.

Marathon is less Black than neighboring Albert City (0.7% Black), Laurens (1.7% Black), and Sioux Rapids (1% Black).

Marathon's Asian Population

0 residents of Marathon, or 0.0% of the population, identify as Asian. The share of Asian residents in Marathon is slightly lower than in Iowa overall, where 2.5% of the population is Asian. Marathon ranks 543rd statewide in terms of Asian residents as a share of the population, out of 1,026 places.

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

Marathon is less Asian than neighboring Laurens (0.6% Asian).

Marathon's Hispanic Population

10 residents of Marathon, or 4.3% of the population, identify as Hispanic. The share of Hispanic residents in Marathon is slightly lower than in Iowa overall, where 7.3% of the population is Hispanic. Marathon ranks 96th statewide in terms of Hispanic residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Marathon's Hispanic population has declined by an estimated 52.4%. Hispanic residents' share of Marathon's population has decreased from 9.1% to 4.3%.

Marathon is more Hispanic than neighboring Webb (0% Hispanic). Marathon is less Hispanic than neighboring Albert City (15.2% Hispanic), Laurens (7.9% Hispanic), Gillett Grove (30% Hispanic), and Sioux Rapids (8.9% Hispanic).

Marathon's Native American/Other Population

0 residents of Marathon, 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 Marathon is comparable to the share in Iowa overall, where 0.6% of the population is Native American/Other. Marathon ranks 637th statewide in terms of Native American/Other residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Marathon's Native American/Other population has grown from 0 to an estimated 0. Native American/Other residents' share of Marathon's population has remained roughly unchanged at 0.0%.

Marathon is less Native American/Other than neighboring Laurens (0.2% Native American/Other), and Sioux Rapids (0.6% Native American/Other).

Marathon's Multiracial Population

41 residents of Marathon, or 17.5% of the population, identify as Multiracial. The share of Multiracial residents in Marathon is considerably higher than in Iowa overall, where 3.5% of the population is Multiracial. Marathon ranks 761st statewide in terms of Multiracial residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Marathon's Multiracial population has grown by an estimated 925.0%. Multiracial residents' share of Marathon's population has increased from 1.7% to 17.5%.

Marathon is more Multiracial than neighboring Albert City (0.4% Multiracial), Webb (1% Multiracial), Laurens (2.8% Multiracial), Gillett Grove (0% Multiracial), and Sioux Rapids (2.5% 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.