Pierce County Demographics

A map of Pierce County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	38,888	38,535	91.3%	91.3%
Multiracial	1,466	1,408	3.4%	3.3%
Hispanic	1,280	1,220	3.0%	2.9%
Asian	490	289	1.2%	0.7%
Black	242	402	0.6%	1.0%
Native American/Other	218	358	0.5%	0.8%

Pierce County, Wisconsin has an estimated population of 42,584, a less than 1% change from the 42,212 recorded in the 2020 Census. The population is 91.3% White, 3.4% Multiracial, 3.0% Hispanic, 1.2% Asian, 0.6% Black, and 0.5% Native American/Other. This demographic dot map shows the population of Pierce County, with one dot drawn for each person counted by the Census, color-coded by race.

Pierce is about as racially diverse as it was in 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 Pierce County, that probability was 16.4% in 2020 and 16.4% in the most recent ACS estimates.

Pierce County is ranked the 35th most populous county in Wisconsin, out of 72 counties. Pierce County was ranked the 35th most populous county in the 2020 Census.

Pierce County's White Population

38,888 residents of Pierce County, or 91.3% of the population, identify as White. The share of White residents in Pierce County is considerably higher than in Wisconsin overall, where 78.6% of the population is White. Pierce County ranks 26th statewide in terms of White residents as a share of the population, out of 72 counties.

Since the 2020 Census, Pierce County's White population has remained roughly the same. White residents' share of Pierce County's population has remained roughly unchanged at 91.3%.

Pierce County is more White than neighboring Goodhue County (89.1% White), and Washington County (77.2% White). Pierce County is less White than neighboring St. Croix County (91.4% White), Pepin County (94.1% White), and Wabasha County (93.3% White).

Pierce County's Black Population

242 residents of Pierce County, or 0.6% of the population, identify as Black. The share of Black residents in Pierce County is lower than in Wisconsin overall, where 5.9% of the population is Black. Pierce County ranks 32nd statewide in terms of Black residents as a share of the population, out of 72 counties.

Since the 2020 Census, Pierce County's Black population has declined by an estimated 39.8%. Black residents' share of Pierce County's population has remained roughly unchanged at 0.6%.

Pierce County is more Black than neighboring Pepin County (0.4% Black), and Wabasha County (0.4% Black). Pierce County is less Black than neighboring St. Croix County (0.7% Black), Goodhue County (1.5% Black), and Washington County (5.5% Black).

Pierce County's Asian Population

490 residents of Pierce County, or 1.2% of the population, identify as Asian. The share of Asian residents in Pierce County is comparable to the share in Wisconsin overall, where 2.9% of the population is Asian. Pierce County ranks 30th statewide in terms of Asian residents as a share of the population, out of 72 counties.

Since the 2020 Census, Pierce County's Asian population has grown by an estimated 69.6%. Asian residents' share of Pierce County's population has increased from 0.7% to 1.2%.

Pierce County is more Asian than neighboring St. Croix County (1.1% Asian), Goodhue County (0.7% Asian), Pepin County (0.6% Asian), and Wabasha County (0.7% Asian). Pierce County is less Asian than neighboring Washington County (7.7% Asian).

Pierce County's Hispanic Population

1,280 residents of Pierce County, or 3.0% of the population, identify as Hispanic. The share of Hispanic residents in Pierce County is slightly lower than in Wisconsin overall, where 8% of the population is Hispanic. Pierce County ranks 40th statewide in terms of Hispanic residents as a share of the population, out of 72 counties.

Since the 2020 Census, Pierce County's Hispanic population has grown by an estimated 4.9%. Hispanic residents' share of Pierce County's population has remained roughly unchanged at 3.0%.

Pierce County is more Hispanic than neighboring Pepin County (2.7% Hispanic). Pierce County is less Hispanic than neighboring St. Croix County (3.1% Hispanic), Goodhue County (4.1% Hispanic), Wabasha County (3.4% Hispanic), and Washington County (5.3% Hispanic).

Pierce County's Native American/Other Population

218 residents of Pierce County, or 0.5% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Pierce County is comparable to the share in Wisconsin overall, where 0.9% of the population is Native American/Other. Pierce County ranks 28th statewide in terms of Native American/Other residents as a share of the population, out of 72 counties.

Since the 2020 Census, Pierce County's Native American/Other population has declined by an estimated 39.1%. Native American/Other residents' share of Pierce County's population has remained roughly unchanged at 0.5%.

Pierce County is less Native American/Other than neighboring Goodhue County (1.5% Native American/Other), Pepin County (0.6% Native American/Other), and Washington County (0.7% Native American/Other).

Pierce County's Multiracial Population

1,466 residents of Pierce County, or 3.4% of the population, identify as Multiracial. The share of Multiracial residents in Pierce County is comparable to the share in Wisconsin overall, where 3.7% of the population is Multiracial. Pierce County ranks 20th statewide in terms of Multiracial residents as a share of the population, out of 72 counties.

Since the 2020 Census, Pierce County's Multiracial population has grown by an estimated 4.1%. Multiracial residents' share of Pierce County's population has remained roughly unchanged at 3.4%.

Pierce County is more Multiracial than neighboring St. Croix County (3.3% Multiracial), Goodhue County (3.1% Multiracial), Pepin County (1.6% Multiracial), and Wabasha County (1.8% Multiracial). Pierce County is less Multiracial than neighboring Washington County (3.7% 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.