Bremer County Demographics
A map of Bremer County's Population by Race
Bremer County, Iowa has an estimated population of 25,204, a less than 1% change from the 24,988 recorded in the 2020 Census. The population is 92.3% White, 2.6% Multiracial, 2.1% Hispanic, 1.1% Black, 1.1% Native American/Other, and 0.9% Asian. This demographic dot map shows the population of Bremer County, with one dot drawn for each person counted by the Census, color-coded by race.
Bremer has become more racially diverse since the 2020 Census. It is considerably less diverse than Iowa overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Bremer County, that probability was 12.2% in 2020 and 14.7% in the most recent ACS estimates.
Bremer County is ranked the 26th most populous county in Iowa, out of 99 counties. Bremer County was ranked the 26th most populous county in the 2020 Census.
Bremer County's White Population
23,256 residents of Bremer County, or 92.3% of the population, identify as White. The share of White residents in Bremer County is higher than in Iowa overall, where 82.3% of the population is White. Bremer County ranks 27th statewide in terms of White residents as a share of the population, out of 99 counties.
Since the 2020 Census, Bremer County's White population has remained roughly the same. White residents' share of Bremer County's population has decreased from 93.7% to 92.3%.
Bremer County is more White than neighboring Black Hawk County (78.1% White), Fayette County (91% White), and Floyd County (88.7% White). Bremer County is less White than neighboring Chickasaw County (92.6% White), and Butler County (94.6% White).
Bremer County's Black Population
281 residents of Bremer County, or 1.1% of the population, identify as Black. The share of Black residents in Bremer County is slightly lower than in Iowa overall, where 3.8% of the population is Black. Bremer County ranks 38th statewide in terms of Black residents as a share of the population, out of 99 counties.
Since the 2020 Census, Bremer County's Black population has grown by an estimated 17.6%. Black residents' share of Bremer County's population has remained roughly unchanged at 1.1%.
Bremer County is more Black than neighboring Chickasaw County (0.5% Black), Butler County (0.2% Black), and Fayette County (0.8% Black). Bremer County is less Black than neighboring Black Hawk County (9.1% Black), and Floyd County (1.4% Black).
Bremer County's Asian Population
226 residents of Bremer County, or 0.9% of the population, identify as Asian. The share of Asian residents in Bremer County is comparable to the share in Iowa overall, where 2.5% of the population is Asian. Bremer County ranks 30th statewide in terms of Asian residents as a share of the population, out of 99 counties.
Since the 2020 Census, Bremer County's Asian population has grown by an estimated 15.3%. Asian residents' share of Bremer County's population has remained roughly unchanged at 0.9%.
Bremer County is more Asian than neighboring Chickasaw County (0% Asian). Bremer County is less Asian than neighboring Black Hawk County (2.7% Asian), Butler County (1.3% Asian), and Floyd County (1.6% Asian).
Bremer County's Hispanic Population
528 residents of Bremer County, or 2.1% of the population, identify as Hispanic. The share of Hispanic residents in Bremer County is lower than in Iowa overall, where 7.3% of the population is Hispanic. Bremer County ranks 81st statewide in terms of Hispanic residents as a share of the population, out of 99 counties.
Since the 2020 Census, Bremer County's Hispanic population has grown by an estimated 3.3%. Hispanic residents' share of Bremer County's population has remained roughly unchanged at 2.1%.
Bremer County is more Hispanic than neighboring Butler County (1.7% Hispanic). Bremer County is less Hispanic than neighboring Chickasaw County (4.6% Hispanic), Black Hawk County (5.2% Hispanic), Fayette County (3.1% Hispanic), and Floyd County (3.9% Hispanic).
Bremer County's Native American/Other Population
268 residents of Bremer County, or 1.1% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Bremer County is comparable to the share in Iowa overall, where 0.6% of the population is Native American/Other. Bremer County ranks 85th statewide in terms of Native American/Other residents as a share of the population, out of 99 counties.
Since the 2020 Census, Bremer County's Native American/Other population has grown by an estimated 346.7%. Native American/Other residents' share of Bremer County's population has increased from 0.2% to 1.1%.
Bremer County is more Native American/Other than neighboring Chickasaw County (0.5% Native American/Other), Black Hawk County (1% Native American/Other), Butler County (0.7% Native American/Other), Fayette County (0.5% Native American/Other), and Floyd County (0.1% Native American/Other).
Bremer County's Multiracial Population
645 residents of Bremer County, or 2.6% of the population, identify as Multiracial. The share of Multiracial residents in Bremer County is comparable to the share in Iowa overall, where 3.5% of the population is Multiracial. Bremer County ranks 64th statewide in terms of Multiracial residents as a share of the population, out of 99 counties.
Since the 2020 Census, Bremer County's Multiracial population has grown by an estimated 11.4%. Multiracial residents' share of Bremer County's population has remained roughly unchanged at 2.6%.
Bremer County is more Multiracial than neighboring Chickasaw County (1.7% Multiracial), and Butler County (1.6% Multiracial). Bremer County is less Multiracial than neighboring Black Hawk County (3.9% Multiracial), Fayette County (3.7% Multiracial), and Floyd County (4.4% 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.