Historical population
| Census | Pop. | Note | %± |
| 2010 | 161 | | — |
|---|
| 2020 | 181 | | 12.4% |
|---|
Mabie first appeared as a census designated place in the 2010 U.S. census.[6]
The 2020 United States census reported that Mabie had a population of 181. The population density was 49.7 inhabitants per square mile (19.2/km2). The racial makeup of Mabie was 160 (88.4%) White, 0 (0.0%) African American, 3 (1.7%) Native American, 0 (0.0%) Asian, 0 (0.0%) Pacific Islander, 1 (0.6%) from other races, and 17 (9.4%) from two or more races. Hispanic or Latino of any race were 8 persons (4.4%).[7]
The whole population lived in households. There were 98 households, out of which 26 (26.5%) had children under the age of 18 living in them, 50 (51.0%) were married-couple households, 7 (7.1%) were cohabiting couple households, 22 (22.4%) had a female householder with no partner present, and 19 (19.4%) had a male householder with no partner present. 27 households (27.6%) were one person, and 15 (15.3%) were one person aged 65 or older. The average household size was 1.85.[7] There were 64 families (65.3% of all households).[8]
The age distribution was 18 people (9.9%) under the age of 18, 4 people (2.2%) aged 18 to 24, 30 people (16.6%) aged 25 to 44, 63 people (34.8%) aged 45 to 64, and 66 people (36.5%) who were 65 years of age or older. The median age was 59.7 years. There were 89 males and 92 females.[7]
There were 115 housing units at an average density of 31.6 units per square mile (12.2 units/km2), of which 98 (85.2%) were occupied. Of these, 89 (90.8%) were owner-occupied, and 9 (9.2%) were occupied by renters.[7]
In the state legislature, Mabie is in the 1st senatorial district, represented by Republican Megan Dahle,[9] and the 1st Assembly district, represented by Republican Heather Hadwick.[10]
Federally, Mabie is in California's 3rd congressional district, represented by Independent Kevin Kiley.[11]