There were 172 households out of which 37.8% had children under the age of 18 living with them, 61.0% were married couples living together, 6.4% had a female householder with no husband present, and 27.9% were non-families. 20.9% of all households were made up of individuals and 7.0% had someone living alone who was 65 years of age or older. The average household size was 2.75 and the average family size was 3.23.
In the CDP the population was spread out with 29.6% under the age of 18, 6.8% from 18 to 24, 29.2% from 25 to 44, 24.5% from 45 to 64, and 9.9% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 97.9 males. For every 100 females age 18 and over, there were 99.4 males.
The median income for a household in the CDP was $37,875, and the median income for a family was $43,036. Males had a median income of $32,266 versus $27,768 for females. The per capita income for the CDP was $15,434. About 9.1% of families and 8.7% of the population were below the poverty line, including 9.5% of those under age 18 and none of those age 65 or over.
Much of Porter was destroyed by fire on January 31, 1924.
Porter Saloon was re-built later that same year. When it re-opened in 1933 following the repeal of Prohibition, it was one of the first establishments to receive a liquor license in the State of Washington.