Marquette County Demographics

A map of Marquette County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	14,531	14,477	92.3%	92.8%
Hispanic	582	488	3.7%	3.1%
Multiracial	416	422	2.6%	2.7%
Black	77	44	0.5%	0.3%
Asian	72	51	0.5%	0.3%
Native American/Other	68	110	0.4%	0.7%

Marquette County, Wisconsin has an estimated population of 15,746, a less than 1% change from the 15,592 recorded in the 2020 Census. The population is 92.3% White, 3.7% Hispanic, 2.6% Multiracial, 0.5% Black, 0.5% Asian, and 0.4% Native American/Other. This demographic dot map shows the population of Marquette County, with one dot drawn for each person counted by the Census, color-coded by race.

Marquette has become more 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 Marquette County, that probability was 13.6% in 2020 and 14.6% in the most recent ACS estimates.

Marquette County is ranked the 64th most populous county in Wisconsin, out of 72 counties. Marquette County was ranked the 64th most populous county in the 2020 Census.

Marquette County's White Population

14,531 residents of Marquette County, or 92.3% of the population, identify as White. The share of White residents in Marquette County is considerably higher than in Wisconsin overall, where 78.6% of the population is White. Marquette County ranks 15th statewide in terms of White residents as a share of the population, out of 72 counties.

Since the 2020 Census, Marquette County's White population has remained roughly the same. White residents' share of Marquette County's population has decreased from 92.8% to 92.3%.

Marquette County is more White than neighboring Waushara County (87.2% White), Green Lake County (90.5% White), Columbia County (90.3% White), Adams County (87.6% White), and Portage County (89% White).

Marquette County's Black Population

77 residents of Marquette County, or 0.5% of the population, identify as Black. The share of Black residents in Marquette County is lower than in Wisconsin overall, where 5.9% of the population is Black. Marquette County ranks 61st statewide in terms of Black residents as a share of the population, out of 72 counties.

Since the 2020 Census, Marquette County's Black population has grown by an estimated 75.0%. Black residents' share of Marquette County's population has remained roughly unchanged at 0.5%.

Marquette County is less Black than neighboring Waushara County (1.8% Black), Columbia County (1.6% Black), Adams County (2% Black), and Portage County (0.8% Black).

Marquette County's Asian Population

72 residents of Marquette County, or 0.5% of the population, identify as Asian. The share of Asian residents in Marquette County is slightly lower than in Wisconsin overall, where 2.9% of the population is Asian. Marquette County ranks 57th statewide in terms of Asian residents as a share of the population, out of 72 counties.

Since the 2020 Census, Marquette County's Asian population has grown by an estimated 41.2%. Asian residents' share of Marquette County's population has remained roughly unchanged at 0.5%.

Marquette County is more Asian than neighboring Waushara County (0.4% Asian). Marquette County is less Asian than neighboring Green Lake County (1.1% Asian), Columbia County (0.8% Asian), Adams County (0.6% Asian), and Portage County (2.9% Asian).

Marquette County's Hispanic Population

582 residents of Marquette County, or 3.7% of the population, identify as Hispanic. The share of Hispanic residents in Marquette County is slightly lower than in Wisconsin overall, where 8% of the population is Hispanic. Marquette County ranks 37th statewide in terms of Hispanic residents as a share of the population, out of 72 counties.

Since the 2020 Census, Marquette County's Hispanic population has grown by an estimated 19.3%. Hispanic residents' share of Marquette County's population has increased from 3.1% to 3.7%.

Marquette County is less Hispanic than neighboring Waushara County (7% Hispanic), Green Lake County (5.6% Hispanic), Columbia County (4.1% Hispanic), Adams County (4.4% Hispanic), and Portage County (4.2% Hispanic).

Marquette County's Native American/Other Population

68 residents of Marquette County, or 0.4% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Marquette County is comparable to the share in Wisconsin overall, where 0.9% of the population is Native American/Other. Marquette County ranks 35th statewide in terms of Native American/Other residents as a share of the population, out of 72 counties.

Since the 2020 Census, Marquette County's Native American/Other population has declined by an estimated 38.2%. Native American/Other residents' share of Marquette County's population has remained roughly unchanged at 0.4%.

Marquette County is more Native American/Other than neighboring Portage County (0.3% Native American/Other). Marquette County is less Native American/Other than neighboring Waushara County (0.7% Native American/Other), Green Lake County (0.7% Native American/Other), Columbia County (0.6% Native American/Other), and Adams County (1% Native American/Other).

Marquette County's Multiracial Population

416 residents of Marquette County, or 2.6% of the population, identify as Multiracial. The share of Multiracial residents in Marquette County is comparable to the share in Wisconsin overall, where 3.7% of the population is Multiracial. Marquette County ranks 55th statewide in terms of Multiracial residents as a share of the population, out of 72 counties.

Since the 2020 Census, Marquette County's Multiracial population has declined by an estimated 1.4%. Multiracial residents' share of Marquette County's population has remained roughly unchanged at 2.6%.

Marquette County is more Multiracial than neighboring Green Lake County (1.6% Multiracial). Marquette County is less Multiracial than neighboring Waushara County (2.8% Multiracial), Adams County (4.3% Multiracial), and Portage County (2.9% 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.