What it means
SUSD is said letter by letter and means Scottsdale Unified School District, the public school system for most of the city. In conversation it does more work than that. “We’re in SUSD” is a statement about where you live, what your tax bill includes and which high school your kids feed into. Up north you will hear PVSchools (Paradise Valley Unified) and CCUSD (Cave Creek Unified) used the same way, and a house listing that names the district is telling you something the street address does not.
The reason it matters is that school districts in Arizona are separate governments. Each has an elected board, a superintendent it hires, a budget and its own questions on the ballot. The City of Scottsdale runs no schools and has no say over any of it, which surprises newcomers from places where the city and the schools share a name and a payroll.
The site’s school districts guide covers funding, overrides, charters and ESAs in full. This page decodes the acronyms and the map.
Where you’ll meet it
On real estate listings, on the school portion of your property tax bill, on the even-year November ballot, and in every neighborhood conversation about enrollment, closures and new boundaries.
Where the word came from
SUSD is older than the city. The district dates to 1896, when the farm settlement opened a one-room school; the district counts Winfield Scott as its founder. The brick schoolhouse it built in 1909 is now the Little Red Schoolhouse museum. When the town incorporated in 1951 the district carried on as its own government with its own lines, and the two grew on separate tracks.
That is why the map looks the way it does. SUSD, District No. 48, spreads well beyond the city into Phoenix, Tempe, Fountain Hills and most of the town of Paradise Valley, but stops at Pinnacle Peak Road. The far north of Scottsdale, annexed later, landed in districts headquartered elsewhere: Paradise Valley Unified, District No. 69, run from northeast Phoenix, whose territory reaches east to Pima Road and north to Jomax Road and takes in neighborhoods such as Grayhawk; and Cave Creek Unified, District No. 93, which serves Cave Creek, Carefree and the northern reaches of the city from a district office with a Scottsdale address.
What it is not
The biggest confusion is in a name. Paradise Valley Unified is named for the Paradise Valley area of Phoenix, where it formed when its elementary and high school districts unified in 1976. The separate town of Paradise Valley, the wealthy enclave between Scottsdale and Phoenix, is almost entirely in Scottsdale Unified. And none of these districts is the city: a closure, a boundary change or a bond is decided by a school board and district voters, not by the council at the Kiva.
The fine print
By its own count SUSD runs 28 campuses, 14 elementary schools, two K-8s, six middle schools and five high schools, for nearly 20,000 students, with about 3,000 employees, roughly half of them teachers. Paradise Valley Unified is larger, around 32,000 students in northeast Phoenix and north Scottsdale. Cave Creek Unified is the smallest of the three, with about 4,800 students, one high school, Cactus Shadows, one middle school and a handful of elementary schools.
The numbers that matter in local politics are the trends. SUSD’s enrollment has fallen over the past decade as families moved to charter schools such as Great Hearts and BASIS and to private options funded by the state’s universal Empowerment Scholarship Accounts. In fall 2026 the SUSD board was weighing closures and mergers among seven campuses whose combined capacity was more than double their enrollment, and the county found the board had broken the open meeting law in the run-up to the vote. On the same November 2026 ballot, SUSD asked voters for a $375 million bond.
The practical rule for anyone buying or renting is simple. The city name, the ZIP code and the mailing address do not determine the district; the boundary map does. Arizona’s open enrollment law lets students attend a school outside their home district when there is space, but the home district is what your property taxes fund. The north Scottsdale guide explains how the annexations of the 1980s drew those lines.