Olmsted County Demographics

A map of Olmsted County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	123,872	124,758	75.3%	76.6%
Black	12,352	10,959	7.5%	6.7%
Asian	10,472	10,190	6.4%	6.3%
Hispanic	9,814	9,196	6.0%	5.6%
Multiracial	7,077	6,750	4.3%	4.1%
Native American/Other	911	994	0.6%	0.6%

Olmsted County, Minnesota has an estimated population of 164,498, a slight increase from the 162,847 recorded in the 2020 Census. The population is 75.3% White, 7.5% Black, 6.4% Asian, 6.0% Hispanic, 4.3% Multiracial, and 0.6% Native American/Other. This demographic dot map shows the population of Olmsted County, with one dot drawn for each person counted by the Census, color-coded by race.

Olmsted has become more racially diverse since the 2020 Census. It is slightly more diverse than Minnesota overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Olmsted County, that probability was 40.0% in 2020 and 41.8% in the most recent ACS estimates.

Olmsted County is ranked the 7th most populous county in Minnesota, out of 87 counties. Olmsted County was ranked the 7th most populous county in the 2020 Census.

Olmsted County's White Population

123,872 residents of Olmsted County, or 75.3% of the population, identify as White. The share of White residents in Olmsted County is comparable to the share in Minnesota overall, where 75.9% of the population is White. Olmsted County ranks 77th statewide in terms of White residents as a share of the population, out of 87 counties.

Since the 2020 Census, Olmsted County's White population has remained roughly the same. White residents' share of Olmsted County's population has decreased from 76.6% to 75.3%.

Olmsted County is more White than neighboring Mower County (72.5% White). Olmsted County is less White than neighboring Wabasha County (93.3% White), Fillmore County (94.3% White), Dodge County (89.4% White), and Goodhue County (89.1% White).

Olmsted County's Black Population

12,352 residents of Olmsted County, or 7.5% of the population, identify as Black. The share of Black residents in Olmsted County is comparable to the share in Minnesota overall, where 6.9% of the population is Black. Olmsted County ranks 6th statewide in terms of Black residents as a share of the population, out of 87 counties.

Since the 2020 Census, Olmsted County's Black population has grown by an estimated 12.7%. Black residents' share of Olmsted County's population has increased from 6.7% to 7.5%.

Olmsted County is more Black than neighboring Wabasha County (0.4% Black), Fillmore County (0.5% Black), Dodge County (1.1% Black), Mower County (3.4% Black), and Goodhue County (1.5% Black).

Olmsted County's Asian Population

10,472 residents of Olmsted County, or 6.4% of the population, identify as Asian. The share of Asian residents in Olmsted County is comparable to the share in Minnesota overall, where 5.1% of the population is Asian. Olmsted County ranks 5th statewide in terms of Asian residents as a share of the population, out of 87 counties.

Since the 2020 Census, Olmsted County's Asian population has grown by an estimated 2.8%. Asian residents' share of Olmsted County's population has remained roughly unchanged at 6.4%.

Olmsted County is more Asian than neighboring Wabasha County (0.7% Asian), Fillmore County (0.7% Asian), Dodge County (0.5% Asian), Mower County (6.2% Asian), and Goodhue County (0.7% Asian).

Olmsted County's Hispanic Population

9,814 residents of Olmsted County, or 6.0% of the population, identify as Hispanic. The share of Hispanic residents in Olmsted County is comparable to the share in Minnesota overall, where 6.4% of the population is Hispanic. Olmsted County ranks 28th statewide in terms of Hispanic residents as a share of the population, out of 87 counties.

Since the 2020 Census, Olmsted County's Hispanic population has grown by an estimated 6.7%. Hispanic residents' share of Olmsted County's population has remained roughly unchanged at 6.0%.

Olmsted County is more Hispanic than neighboring Wabasha County (3.4% Hispanic), Fillmore County (2% Hispanic), Dodge County (5.4% Hispanic), and Goodhue County (4.1% Hispanic). Olmsted County is less Hispanic than neighboring Mower County (13.6% Hispanic).

Olmsted County's Native American/Other Population

911 residents of Olmsted County, or 0.6% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Olmsted County is comparable to the share in Minnesota overall, where 1.2% of the population is Native American/Other. Olmsted County ranks 60th statewide in terms of Native American/Other residents as a share of the population, out of 87 counties.

Since the 2020 Census, Olmsted County's Native American/Other population has declined by an estimated 8.4%. Native American/Other residents' share of Olmsted County's population has remained roughly unchanged at 0.6%.

Olmsted County is more Native American/Other than neighboring Wabasha County (0.5% Native American/Other), and Fillmore County (0.5% Native American/Other). Olmsted County is less Native American/Other than neighboring Mower County (1.3% Native American/Other), and Goodhue County (1.5% Native American/Other).

Olmsted County's Multiracial Population

7,077 residents of Olmsted County, or 4.3% of the population, identify as Multiracial. The share of Multiracial residents in Olmsted County is comparable to the share in Minnesota overall, where 4.5% of the population is Multiracial. Olmsted County ranks 20th statewide in terms of Multiracial residents as a share of the population, out of 87 counties.

Since the 2020 Census, Olmsted County's Multiracial population has grown by an estimated 4.8%. Multiracial residents' share of Olmsted County's population has remained roughly unchanged at 4.3%.

Olmsted County is more Multiracial than neighboring Wabasha County (1.8% Multiracial), Fillmore County (2% Multiracial), Dodge County (3% Multiracial), Mower County (2.9% Multiracial), and Goodhue County (3.1% 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.