Marengo, WI Demographics

A map of Marengo's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	138	133	92.6%	89.9%
Multiracial	11	6	7.4%	4.1%
Black	0	0	0.0%	0.0%
Asian	0	0	0.0%	0.0%
Hispanic	0	2	0.0%	1.4%
Native American/Other	0	7	0.0%	4.7%

Marengo, Wisconsin has an estimated population of 149, a less than 1% change from the 148 recorded in the 2020 Census. The population is 92.6% White, 7.4% Multiracial, 0.0% Black, 0.0% Asian, 0.0% Hispanic, and 0.0% Native American/Other. This demographic dot map shows the population of Marengo, with one dot drawn for each person counted by the Census, color-coded by race.

Marengo has become considerably less racially diverse since the 2020 Census. It is considerably less diverse than Wisconsin overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Marengo, that probability was 18.8% in 2020 and 13.7% in the most recent ACS estimates.

Marengo is ranked the 722nd most populous place in Wisconsin, out of 808 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). Marengo was ranked the 733rd most populous place in the 2020 Census.

Marengo's White Population

138 residents of Marengo, or 92.6% of the population, identify as White. The share of White residents in Marengo is considerably higher than in Wisconsin overall, where 78.6% of the population is White. Marengo ranks 461st statewide in terms of White residents as a share of the population, out of 808 places.

Since the 2020 Census, Marengo's White population has grown by an estimated 3.8%. White residents' share of Marengo's population has increased from 89.9% to 92.6%.

Marengo is more White than neighboring Ashland (80.7% White), Bayfront (63% White), and Diaperville (0% White). Marengo is less White than neighboring Jolmaville (95.2% White), and Mellen (95.2% White).

Marengo's Black Population

0 residents of Marengo, or 0.0% of the population, identify as Black. The share of Black residents in Marengo is lower than in Wisconsin overall, where 5.9% of the population is Black. Marengo ranks 606th statewide in terms of Black residents as a share of the population, out of 808 places.

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

Marengo is less Black than neighboring Ashland (0.7% Black), and Diaperville (6.4% Black).

Marengo's Asian Population

0 residents of Marengo, or 0.0% of the population, identify as Asian. The share of Asian residents in Marengo is slightly lower than in Wisconsin overall, where 2.9% of the population is Asian. Marengo ranks 594th statewide in terms of Asian residents as a share of the population, out of 808 places.

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

Marengo is less Asian than neighboring Ashland (1.3% Asian), and Mellen (0.3% Asian).

Marengo's Hispanic Population

0 residents of Marengo, or 0.0% of the population, identify as Hispanic. The share of Hispanic residents in Marengo is lower than in Wisconsin overall, where 8% of the population is Hispanic. Marengo ranks 663rd statewide in terms of Hispanic residents as a share of the population, out of 808 places.

Since the 2020 Census, Marengo's Hispanic population has declined by an estimated 100.0%. Hispanic residents' share of Marengo's population has decreased from 1.4% to 0.0%.

Marengo is less Hispanic than neighboring Ashland (4.4% Hispanic), and Bayfront (8.9% Hispanic).

Marengo's Native American/Other Population

0 residents of Marengo, 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 Marengo is comparable to the share in Wisconsin overall, where 0.9% of the population is Native American/Other. Marengo ranks 48th statewide in terms of Native American/Other residents as a share of the population, out of 808 places.

Since the 2020 Census, Marengo's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Marengo's population has decreased from 4.7% to 0.0%.

Marengo is less Native American/Other than neighboring Ashland (7% Native American/Other), Mellen (1.6% Native American/Other), Bayfront (25.2% Native American/Other), and Diaperville (85.3% Native American/Other).

Marengo's Multiracial Population

11 residents of Marengo, or 7.4% of the population, identify as Multiracial. The share of Multiracial residents in Marengo is slightly higher than in Wisconsin overall, where 3.7% of the population is Multiracial. Marengo ranks 177th statewide in terms of Multiracial residents as a share of the population, out of 808 places.

Since the 2020 Census, Marengo's Multiracial population has grown by an estimated 83.3%. Multiracial residents' share of Marengo's population has increased from 4.1% to 7.4%.

Marengo is more Multiracial than neighboring Jolmaville (4.8% Multiracial), Ashland (6% Multiracial), Mellen (2.9% Multiracial), and Bayfront (3% Multiracial). Marengo is less Multiracial than neighboring Diaperville (8.3% 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.