Marne, IA Demographics

A map of Marne's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	95	103	96.9%	93.6%
Multiracial	3	6	3.1%	5.5%
Black	0	0	0.0%	0.0%
Asian	0	0	0.0%	0.0%
Hispanic	0	1	0.0%	0.9%
Native American/Other	0	0	0.0%	0.0%

Marne, Iowa has an estimated population of 98, a large decrease from the 110 recorded in the 2020 Census. The population is 96.9% White, 3.1% Multiracial, 0.0% Black, 0.0% Asian, 0.0% Hispanic, and 0.0% Native American/Other. This demographic dot map shows the population of Marne, with one dot drawn for each person counted by the Census, color-coded by race.

Marne has become considerably less racially diverse since the 2020 Census. It is considerably less 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 Marne, that probability was 12.0% in 2020 and 5.9% in the most recent ACS estimates.

Marne is ranked the 863rd 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). Marne was ranked the 841st most populous place in the 2020 Census.

Marne's White Population

95 residents of Marne, or 96.9% of the population, identify as White. The share of White residents in Marne is considerably higher than in Iowa overall, where 82.3% of the population is White. Marne ranks 435th statewide in terms of White residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Marne's White population has declined by an estimated 7.8%. White residents' share of Marne's population has increased from 93.6% to 96.9%.

Marne is more White than neighboring Atlantic (93.4% White), Walnut (95.5% White), Lewis (91.3% White), Elk Horn (84.6% White), and Kimballton (96.6% White).

Marne's Black Population

0 residents of Marne, or 0.0% of the population, identify as Black. The share of Black residents in Marne is slightly lower than in Iowa overall, where 3.8% of the population is Black. Marne ranks 600th statewide in terms of Black residents as a share of the population, out of 1,026 places.

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

Marne is less Black than neighboring Atlantic (1.7% Black), and Walnut (0.7% Black).

Marne's Asian Population

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

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

Marne is less Asian than neighboring Atlantic (0.4% Asian), and Elk Horn (7.7% Asian).

Marne's Hispanic Population

0 residents of Marne, or 0.0% of the population, identify as Hispanic. The share of Hispanic residents in Marne is lower than in Iowa overall, where 7.3% of the population is Hispanic. Marne ranks 848th statewide in terms of Hispanic residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Marne's Hispanic population has declined by an estimated 100.0%. Hispanic residents' share of Marne's population has decreased from 0.9% to 0.0%.

Marne is less Hispanic than neighboring Atlantic (3.1% Hispanic), Walnut (3.4% Hispanic), Lewis (4.1% Hispanic), and Elk Horn (3.2% Hispanic).

Marne's Native American/Other Population

0 residents of Marne, 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 Marne is comparable to the share in Iowa overall, where 0.6% of the population is Native American/Other. Marne 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, Marne's Native American/Other population has grown from 0 to an estimated 0. Native American/Other residents' share of Marne's population has remained roughly unchanged at 0.0%.

Marne is less Native American/Other than neighboring Atlantic (0.7% Native American/Other), Elk Horn (3.3% Native American/Other), and Kimballton (0.6% Native American/Other).

Marne's Multiracial Population

3 residents of Marne, or 3.1% of the population, identify as Multiracial. The share of Multiracial residents in Marne is comparable to the share in Iowa overall, where 3.5% of the population is Multiracial. Marne ranks 81st statewide in terms of Multiracial residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Marne's Multiracial population has declined by an estimated 50.0%. Multiracial residents' share of Marne's population has decreased from 5.5% to 3.1%.

Marne is more Multiracial than neighboring Atlantic (0.8% Multiracial), Walnut (0.4% Multiracial), Elk Horn (1.2% Multiracial), and Kimballton (2.8% Multiracial). Marne is less Multiracial than neighboring Lewis (4.6% 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.