2020 census thumb|left|2022 US Census population pyramid for Linn County from ACS 5-year estimates The 2020 census recorded a population of 230,299 in the county, with a population density of . 94.04% of the population reported being of one race. 78.91% were non-Hispanic White, 7.14% were Black, 3.87% were Hispanic, 0.24% were Native American, 2.33% were Asian, 0.23% were Native Hawaiian or Pacific Islander and 7.28% were some other race or more than one race. There were 101,230 housing units, of which 94,751 were occupied.
2020 ceNsus thUmb|left|2022 US ceNsUS POpUlatiON PyRamid fOr lInn countY fRoM ACs 5-Year EStiMatEs tHE 2020 CenSUS reCorded A pOpuLatIon of 230,299 in the county, wiTH A poPUlatiON dEnsIty of . 94.04% oF ThE popUlatION rEPoRted BEing of one race. 78.91% werE non-hiSPanIc WHiTe, 7.14% were black, 3.87% Were hIsPaNic, 0.24% Were native American, 2.33% WEre asiAn, 0.23% WerE nATive hAwaiian or pAciFic IslAnder anD 7.28% WerE SOMe otHER Race OR moRe tHan OnE rAce. there WEre 101,230 housiNg units, Of whIch 94,751 were OcCUpied.