2020 census As of the
2020 census, Loomis had a population of 6,836 and a population density of . The median age was 42.3 years. 23.9% of residents were under the age of 18, 8.1% were aged 18 to 24, 21.0% were aged 25 to 44, 28.8% were aged 45 to 64, and 18.2% were 65 years of age or older. For every 100 females, there were 97.2 males, and for every 100 females age 18 and over there were 94.0 males age 18 and over. The census reported that 99.3% of the population lived in households, 3 people (0.0%) lived in non-institutionalized group quarters, and 43 people (0.6%) were institutionalized. There were 2,459 households in Loomis, of which 35.9% had children under the age of 18 living in them. Of all households, 57.3% were married-couple households, 5.4% were
cohabiting-couple households, 14.3% were households with a male householder and no spouse or partner present, and 23.0% were households with a female householder and no spouse or partner present. About 18.4% of all households were made up of individuals, and 9.6% had someone living alone who was 65 years of age or older. The average household size was 2.76, and there were 1,875
families (76.3% of all households).
Demographic estimates In 2023, the US Census Bureau estimated that 1.5% of the population were foreign-born. Of all people aged 5 or older, 94.8% spoke only English at home, 3.5% spoke
Spanish, 1.0% spoke other
Indo-European languages, 0.0% spoke Asian or Pacific Islander languages, and 0.7% spoke other languages. Of those aged 25 or older, 94.8% were high school graduates and 41.2% had a bachelor's degree.
Income and poverty The median household income in 2023 was $103,435, and the
per capita income was $66,049. About 5.0% of families and 10.8% of the population were below the poverty line.
2010 census At the
2010 census Loomis had a population of 6,430. The population density was . The racial makeup of Loomis was 5,733 (89.2%) White, 33 (0.5%) African American, 74 (1.2%) Native American, 169 (2.6%) Asian, 12 (0.2%) Pacific Islander, 149 (2.3%) from
other races, and 260 (4.0%) from two or more races. Hispanic or Latino of any race were 568 people (8.8%). The census reported that 6,409 people (99.7% of the population) lived in households, 5 (0.1%) lived in non-institutionalized group quarters, and 16 (0.2%) were institutionalized. There were 2,356 households, 832 (35.3%) had children under the age of 18 living in them, 1,361 (57.8%) were
opposite-sex married couples living together, 266 (11.3%) had a female householder with no husband present, 138 (5.9%) had a male householder with no wife present. There were 142 (6.0%)
unmarried opposite-sex partnerships, and 16 (0.7%)
same-sex married couples or partnerships. 453 households (19.2%) were one person and 194 (8.2%) had someone living alone who was 65 or older. The average household size was 2.72. There were 1,765 families (74.9% of households); the average family size was 3.10. The age distribution was 1,588 people (24.7%) under the age of 18, 510 people (7.9%) aged 18 to 24, 1,377 people (21.4%) aged 25 to 44, 2,121 people (33.0%) aged 45 to 64, and 834 people (13.0%) who were 65 or older. The median age was 42.1 years. For every 100 females, there were 97.8 males. For every 100 females age 18 and over, there were 92.8 males. There were 2,465 housing units at an average density of 339.2 per square mile, of the occupied units 1,830 (77.7%) were owner-occupied and 526 (22.3%) were rented. The homeowner vacancy rate was 1.2%; the rental vacancy rate was 4.9%. 4,911 people (76.4% of the population) lived in owner-occupied housing units and 1,498 people (23.3%) lived in rental housing units. ==Culture==