Theatre Group was established in 1958. They perform in the Sandgate Town Hall. Now known as Sandgate Theatre Incorporated, this community theatre group hosts Brisbane's longest running community theatre festival, the Yarrageh Drama Festival, which is held in August and September each year at the town hall. Sandgate Infants State School was separated from Sandgate State School in 1955. It was amalgamated back into Sandgate State School in 1971. Sandgate District State High School opened on 26 January 1959. Due to delays in the construction of the first school building, the first classes were taught in the Sandgate Town Hall. Sandgate Opportunity School opened on 26 April 1960. It was later renamed Sandgate Special School. It closed on 15 December 1995. In June 1990 the Uniting Church in Australia congregations of Boondall, Brighton, Sandgate and Shorncliffe decided to amalgamate. Their new Sandgate Uniting Church in Deagon was opened in Sunday 20 November 1994. In the , the population of Sandgate was 4,626, 51.4% female and 48.6% male. The median age of the Sandgate population was 43 years, 6 years above the Australian median. 77.8% of people living in Sandgate were born in Australia, compared to the national average of 69.8%; the next most common countries of birth were England 5.9%, New Zealand 3.7%, Scotland 0.8%, Ireland 0.6%, Philippines 0.5%. 92.1% of people spoke only English at home; the next most common languages were 0.5% German, 0.5% Japanese, 0.4% French, 0.3% Filipino, 0.3% Italian. In the , Sandgate had a population of 4,909 people. Heritage listings Sandgate has a number of heritage-listed sites, including: 1 Bowser Parade (): former Sandgate Post Office 5 Brighton Road (): former Sandgate Town Hall 92 Brighton Road (): Sacred Heart Catholic Church Precinct 6–8 Flinders Parade (): former Sandgate Baptist Church 8 Seymour Street (): Sandgate War Memorial Park 138 Flinders Parade (): Broadhurst, Sandgate Education Sandgate State School is a government primary (Prep-6) school for boys and girls at 54 Rainbow Street (). In 2018, the school had an enrolment of 479 students with 34 teachers (30 full-time equivalent) and 20 non-teaching staff (15 full-time equivalent). It includes a special education program. Sacred Heart Primary School is a Catholic primary (Prep-6) school for boys and girls at 92 Brighton Road (). In 2018, the school had an enrolment of 215 students with 21 teachers (17 full-time equivalent) and 11 non-teaching staff (6 full-time equivalent).