2020 census As of the
2020 census, Garnet had a population of 7,118 and a population density of . The median age was 33.1 years; 29.0% of residents were under the age of 18 and 11.1% were 65 years of age or older. The age distribution was 10.4% aged 18 to 24, 26.3% aged 25 to 44, and 23.2% aged 45 to 64. For every 100 females, there were 102.8 males, and for every 100 females age 18 and over there were 98.2 males age 18 and over. 93.9% of residents lived in urban areas, while 6.1% lived in rural areas. The census reported that 99.5% of the population lived in households, 1 person (0.0%) lived in non-institutionalized group quarters, and 32 people (0.4%) were institutionalized. There were 2,372 housing units at an average density of , of which 2,083 (87.8%) were occupied. Of these, 73.1% were owner-occupied, and 26.9% were occupied by renters. About 12.2% of housing units were vacant. The homeowner vacancy rate was 2.1% and the rental vacancy rate was 2.9%.
Income and poverty The median household income was $63,082, and the
per capita income was $22,985. About 14.8% of families and 16.3% of the population were below the poverty line. ==References==