Mi-Wuk Village is located at 38°3′40″N 120°11′15″W (38.061053, -120.187524).
According to the United States Census Bureau, the CDP has a total area of 2.8 square miles (7.2 km²), of which 99.80% is land and 0.20% is water.
This region experiences warm (but not hot) and dry summers, with no average monthly temperatures above 71.6 °F. According to the Köppen Climate Classification system, Mi-Wuk Village has a warm-summer Mediterranean climate, abbreviated "Csb" on climate maps.
The 2010 United States Census reported that Mi-Wuk Village had a population of 941. The population density was 338.0 people per square mile (130.5/km²). The racial makeup of Mi-Wuk Village was 871 (92.6%) White, 5 (0.5%) African American, 17 (1.8%) Native American, 3 (0.3%) Asian, 0 (0.0%) Pacific Islander, 11 (1.2%) from other races, and 34 (3.6%) from two or more races. Hispanic or Latino of any race were 71 persons (7.5%).
The Census reported that 941 people (100% of the population) lived in households, 0 (0%) lived in non-institutionalized group quarters, and 0 (0%) were institutionalized.
There were 417 households, out of which 96 (23.0%) had children under the age of 18 living in them, 221 (53.0%) were opposite-sex married couples living together, 38 (9.1%) had a female householder with no husband present, 20 (4.8%) had a male householder with no wife present. There were 26 (6.2%) unmarried opposite-sex partnerships, and 6 (1.4%) same-sex married couples or partnerships. 100 households (24.0%) were made up of individuals and 47 (11.3%) had someone living alone who was 65 years of age or older. The average household size was 2.26. There were 279 families (66.9% of all households); the average family size was 2.68.
The population was spread out with 160 people (17.0%) under the age of 18, 61 people (6.5%) aged 18 to 24, 175 people (18.6%) aged 25 to 44, 343 people (36.5%) aged 45 to 64, and 202 people (21.5%) who were 65 years of age or older. The median age was 50.9 years. For every 100 females there were 104.1 males. For every 100 females age 18 and over, there were 97.2 males.
There were 1,159 housing units at an average density of 416.3 per square mile (160.7/km²), of which 321 (77.0%) were owner-occupied, and 96 (23.0%) were occupied by renters. The homeowner vacancy rate was 4.7%; the rental vacancy rate was 11.5%. 706 people (75.0% of the population) lived in owner-occupied housing units and 235 people (25.0%) lived in rental housing units.
As of the census of 2000, there were 1,485 people, 601 households, and 430 families residing in the CDP. The population density was 441.5 people per square mile (170.6/km²). There were 1,268 housing units at an average density of 377.0 per square mile (145.7/km²). The racial makeup of the CDP was 92.53% White, 0.13% African American, 0.94% Native American, 0.40% Asian, 0.13% Pacific Islander, 1.55% from other races, and 4.31% from two or more races. Hispanic or Latino of any race were 6.33% of the population.
There were 601 households out of which 28.8% had children under the age of 18 living with them, 61.2% were married couples living together, 6.3% had a female householder with no husband present, and 28.3% were non-families. 22.5% of all households were made up of individuals and 8.0% had someone living alone who was 65 years of age or older. The average household size was 2.47 and the average family size was 2.86.
In the CDP the population was spread out with 23.9% under the age of 18, 6.3% from 18 to 24, 20.7% from 25 to 44, 31.5% from 45 to 64, and 17.6% who were 65 years of age or older. The median age was 44 years. For every 100 females there were 100.4 males. For every 100 females age 18 and over, there were 99.6 males.
The median income for a household in the CDP was $51,925, and the median income for a family was $52,019. Males had a median income of $43,750 versus $26,071 for females. The per capita income for the CDP was $26,209. About 5.9% of families and 8.8% of the population were below the poverty line, including 9.9% of those under age 18 and none of those age 65 or over.
In the California State Legislature, Mi-Wuk Village is in the 8th Senate District, represented by Republican Tom Berryhill, and the 5th Assembly District, represented by Republican Frank Bigelow.
In the United States House of Representatives, Mi-Wuk Village is in California's 4th congressional district, represented by Republican Tom McClintock.