St. Croix County Demographics

A map of St. Croix County's Population by Race

St. Croix County, Wisconsin had a population of 93,536 in 2020. It was 91.4% White, 0.7% Black, 1.1% Asian, 2.9% Hispanic, 0.6% Native American/Other, and 3.4% Multiracial. This map presents the population of St. Croix County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

St. Croix County is the 17th most populous county of the 72 counties in Wisconsin.

St. Croix County's White Population

85,457 residents of St. Croix County identify as White, or 91.4%. This makes the White share of the population of St. Croix County larger than the White share of the population of Wisconsin (78.6% White). Of the 72 counties in Wisconsin, St. Croix County is ranked #25 in terms of White residents as a share of the population.

St. Croix County is more White than neighboring Pierce County (91.3% White), Washington County (77.8% White), and Dunn County (90% White). St. Croix County is less White than neighboring Polk County (92.9% White), and Pepin County (93.8% White).

St. Croix County's Black Population

635 residents of St. Croix County identify as Black, or 0.7%. This makes the Black share of the population of St. Croix County slightly less than the Black share of the population of Wisconsin (6.2% Black). Of the 72 counties in Wisconsin, St. Croix County is ranked #39 in terms of Black residents as a share of the population.

St. Croix County is more Black than neighboring Polk County (0.4% Black), and Pepin County (0.3% Black). St. Croix County is less Black than neighboring Pierce County (1% Black), Washington County (5.2% Black), and Dunn County (0.9% Black).

St. Croix County's Asian Population

984 residents of St. Croix County identify as Asian, or 1.1%. This makes the Asian share of the population of St. Croix County roughly similar to the Asian share of the population of Wisconsin (3% Asian). Of the 72 counties in Wisconsin, St. Croix County is ranked #23 in terms of Asian residents as a share of the population.

St. Croix County is more Asian than neighboring Pierce County (0.7% Asian), Polk County (0.5% Asian), and Pepin County (0.3% Asian). St. Croix County is less Asian than neighboring Washington County (6.9% Asian), and Dunn County (3.2% Asian).

St. Croix County's Hispanic Population

2,679 residents of St. Croix County identify as Hispanic, or 2.9%. This makes the Hispanic share of the population of St. Croix County roughly similar to the Hispanic share of the population of Wisconsin (7.6% Hispanic). Of the 72 counties in Wisconsin, St. Croix County is ranked #42 in terms of Hispanic residents as a share of the population.

St. Croix County is more Hispanic than neighboring Polk County (2.1% Hispanic), Dunn County (2.3% Hispanic), and Pepin County (2.1% Hispanic). St. Croix County is less Hispanic than neighboring Washington County (4.9% Hispanic).

St. Croix County's Native American/Other Population

575 residents of St. Croix County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 0.6%. This makes the Native American/Other share of the population of St. Croix County roughly similar to the Native American/Other share of the population of Wisconsin (1.2% Native American/Other). Of the 72 counties in Wisconsin, St. Croix County is ranked #47 in terms of Native American/Other residents as a share of the population.

St. Croix County is more Native American/Other than neighboring Pepin County (0.5% Native American/Other). St. Croix County is less Native American/Other than neighboring Pierce County (0.8% Native American/Other), Polk County (1.1% Native American/Other), and Washington County (0.8% Native American/Other).

St. Croix County's Multiracial Population

3,206 residents of St. Croix County identify as Multiracial, or 3.4%. This makes the Multiracial share of the population of St. Croix County roughly similar to the Multiracial share of the population of Wisconsin (3.5% Multiracial). Of the 72 counties in Wisconsin, St. Croix County is ranked #18 in terms of Multiracial residents as a share of the population.

St. Croix County is more Multiracial than neighboring Pierce County (3.3% Multiracial), Polk County (3.1% Multiracial), Dunn County (3.1% Multiracial), and Pepin County (2.9% Multiracial). St. Croix County is less Multiracial than neighboring Washington County (4.4% Multiracial).

Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.