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Research dossier · Places & Architecture

San Dieguito Union High School District

school district in California

Architectural plans, a scale model, maps and brass measuring instruments
Places and architectureInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 10, 2026
Entity authorityQ7413776 ↗
Source-derived summary

San Dieguito Union High School District (SDUHSD) is a public school district based in northern San Diego County, California. Established in 1936, the district serves over 13,000 students in five middle schools, five comprehensive high schools, and one alternative high school.

History

Prior to 1936, students who lived in coastal North County attended high school in Oceanside. In January 1936, the communities of Encinitas, Cardiff, Solana Beach, Del Mar, Green Valley, and Olivenhain voted in favor to form a new high school district. San Dieguito Union High School, now San Dieguito High School Academy was the flagship school of the district, in which the first classes were held in September 1936. Architect Lillian J. Rice was hired by the district board to design the school.

The district now serves students from five elementary school districts in North County: the Encinitas, Rancho Santa Fe, Cardiff, Solana Beach, and Del Mar School Districts. Students from those school districts matriculate through the middle schools and high schools.

Boundary

The district includes Encinitas, Del Mar, Solana Beach, portions of Carlsbad and San Diego, the Fairbanks Ranch and Rancho Santa Fe census-designated places, and most of the Elfin Forest CDP.

Feeder elementary districts include: Cardiff Elementary School District, Del Mar Union Elementary School District, Encinitas Union Elementary School District, Rancho Santa Fe Elementary School District, and Solana Beach Elementary School District.

Board of trustees

The district is governed by a five-member school board, called the Board of Trustees.

Editorial summary

“San Dieguito Union High School District” enters the record as school district in California. Crown Archives preserves that source wording while asking what Dieguito, Union and High can confirm, complicate or overturn.

Editorial reviewMost useful as a place-based finding aid connecting the present description to earlier jurisdictions, maps and built evidence. The current lead gives the account dated anchors—1936—that can be checked directly. The selected authority fields contribute no independent date. Its strongest next move is a source search built around Dieguito, Union and High.
Editorial analysis

Why this record matters

“San Dieguito Union High School District” is worth following because a concise public description often conceals a longer documentary argument. Here, Dieguito, Union and High provides the most credible route into that argument.

Evidence profile

Maps, plans, fabric surveys and administrative records can establish how the site’s name, extent and function changed over time. The source revision retrieved here is dated Sep 10, 2026. The linked authority identifier is Q7413776. VIAF identifies the subject as 145697259. The Library of Congress control number is no90007806. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1936.

Critical limits

Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.

Best used for
  • Historic place names
  • Jurisdictional context
  • Routes into maps and plans
Verify next

Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.

Three-step research path

  1. Establish the record: confirm the title “San Dieguito Union High School District”, its source revision and the description used here.
  2. Expand the search: follow San Dieguito Union High School District primary sources, San Dieguito Union High School District archive and Dieguito research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “San Dieguito Union High School District”?
  2. Which authority defined the place, boundary or structure at the relevant date?
  3. Which earlier names or jurisdictions may reveal additional records?
Subject index

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Source & attribution

This entry incorporates text from “San Dieguito Union High School District” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.