Linn County Demographics

A map of Linn County's Population by Race

Linn County, Missouri has an estimated population of 11,852, a less than 1% change from the 11,874 recorded in the 2020 Census. The population is 93.7% White, 3.0% Hispanic, 1.8% Multiracial, 0.8% Black, 0.4% Asian, and 0.3% Native American/Other. This demographic dot map shows the population of Linn County, with one dot drawn for each person counted by the Census, color-coded by race.

Linn has become less racially diverse since the 2020 Census. It is considerably less diverse than Missouri overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Linn County, that probability was 13.6% in 2020 and 12.2% in the most recent ACS estimates.

Linn County is ranked the 77th most populous county in Missouri, out of 115 counties. Linn County was ranked the 76th most populous county in the 2020 Census.

Linn County's White Population

11,100 residents of Linn County, or 93.7% of the population, identify as White. The share of White residents in Linn County is significantly higher than in Missouri overall, where 76.3% of the population is White. Linn County ranks 23rd statewide in terms of White residents as a share of the population, out of 115 counties.

Since the 2020 Census, Linn County's White population has remained roughly the same. White residents' share of Linn County's population has increased from 92.9% to 93.7%.

Linn County is more White than neighboring Sullivan County (76.8% White), Chariton County (92.7% White), Livingston County (90.8% White), Grundy County (92.1% White), and Macon County (92% White).

Linn County's Black Population

97 residents of Linn County, or 0.8% of the population, identify as Black. The share of Black residents in Linn County is considerably lower than in Missouri overall, where 10.9% of the population is Black. Linn County ranks 72nd statewide in terms of Black residents as a share of the population, out of 115 counties.

Since the 2020 Census, Linn County's Black population has grown by an estimated 44.8%. Black residents' share of Linn County's population has remained roughly unchanged at 0.8%.

Linn County is more Black than neighboring Grundy County (0.4% Black). Linn County is less Black than neighboring Sullivan County (2.7% Black), Chariton County (1.9% Black), Livingston County (3% Black), and Macon County (1.8% Black).

Linn County's Asian Population

52 residents of Linn County, or 0.4% of the population, identify as Asian. The share of Asian residents in Linn County is comparable to the share in Missouri overall, where 2.1% of the population is Asian. Linn County ranks 93rd statewide in terms of Asian residents as a share of the population, out of 115 counties.

Since the 2020 Census, Linn County's Asian population has grown by an estimated 136.4%. Asian residents' share of Linn County's population has remained roughly unchanged at 0.4%.

Linn County is more Asian than neighboring Chariton County (0.2% Asian), and Livingston County (0.3% Asian). Linn County is less Asian than neighboring Sullivan County (1% Asian), Grundy County (0.7% Asian), and Macon County (0.6% Asian).

Linn County's Hispanic Population

352 residents of Linn County, or 3.0% of the population, identify as Hispanic. The share of Hispanic residents in Linn County is slightly lower than in Missouri overall, where 5.2% of the population is Hispanic. Linn County ranks 46th statewide in terms of Hispanic residents as a share of the population, out of 115 counties.

Since the 2020 Census, Linn County's Hispanic population has grown by an estimated 21.8%. Hispanic residents' share of Linn County's population has increased from 2.4% to 3.0%.

Linn County is more Hispanic than neighboring Chariton County (1.5% Hispanic), Livingston County (2.1% Hispanic), Grundy County (2.8% Hispanic), and Macon County (1.9% Hispanic). Linn County is less Hispanic than neighboring Sullivan County (18.1% Hispanic).

Linn County's Native American/Other Population

38 residents of Linn County, or 0.3% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Linn County is comparable to the share in Missouri overall, where 0.7% of the population is Native American/Other. Linn County ranks 80th statewide in terms of Native American/Other residents as a share of the population, out of 115 counties.

Since the 2020 Census, Linn County's Native American/Other population has declined by an estimated 38.7%. Native American/Other residents' share of Linn County's population has remained roughly unchanged at 0.3%.

Linn County is more Native American/Other than neighboring Sullivan County (0.2% Native American/Other). Linn County is less Native American/Other than neighboring Chariton County (0.8% Native American/Other), Livingston County (0.6% Native American/Other), and Grundy County (0.6% Native American/Other).

Linn County's Multiracial Population

213 residents of Linn County, or 1.8% of the population, identify as Multiracial. The share of Multiracial residents in Linn County is slightly lower than in Missouri overall, where 4.8% of the population is Multiracial. Linn County ranks 92nd statewide in terms of Multiracial residents as a share of the population, out of 115 counties.

Since the 2020 Census, Linn County's Multiracial population has declined by an estimated 47.7%. Multiracial residents' share of Linn County's population has decreased from 3.4% to 1.8%.

Linn County is more Multiracial than neighboring Sullivan County (1.2% Multiracial). Linn County is less Multiracial than neighboring Chariton County (3% Multiracial), Livingston County (3.2% Multiracial), Grundy County (3.4% Multiracial), and Macon County (3.3% 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.