The top reported proficiency rate is 14% in English language arts. The lowest is 4% in Math.
Original Research by School Decision on Joshua Elementary
Joshua Elementary sits on North Second Street East in Lancaster, a mid-sized charter city in the high-desert Antelope Valley of northern Los Angeles County. The school serves kindergarten through fifth grade as a regular public elementary school within the Lancaster Elementary school district.
The student body is racially and ethnically mixed, drawing roughly equal shares of Black and white students alongside a substantial Hispanic population and smaller numbers of other groups. The great majority of students qualify for free or reduced-price lunch, a reliable marker of concentrated economic need. Data on English learners and students with IEPs were not available in the materials reviewed.
State assessment results from the most recent testing year tell a candid story. On the California CAASPP exams, proficiency in English language arts was in the mid-teens across tested grades, and math proficiency was lower still, reaching only a few percentage points in fourth and fifth grade. Science results from the fifth-grade CAST exam were similarly very low. Against the full set of districts in Los Angeles County, the school's overall proficiency index places it in the bottom quartile. Trend data covering more than one year was not available, so it is not possible to say whether scores have been rising, falling, or holding steady. These numbers warrant a direct conversation with the school about what interventions are in place and how individual students are being supported.
Because the school serves only elementary grades, there is no graduation rate and no AP or dual-enrollment data; those measures simply do not apply here.
One relevant district development: voters approved a general obligation bond for Lancaster School District in late 2024, publicly reported as a measure to fund repairs and renovations at aging school buildings across the district, many of which were built more than a generation ago. The bond covers upgrades to classrooms, science labs, roofs, plumbing, electrical systems, and instructional technology, and it is structured to extend an existing tax rate rather than raise it. Families considering this school can expect physical improvements to come over the life of the bond, though timelines for specific campuses were not detailed in the available materials.
Lancaster itself offers more than the high-desert suburban surroundings might suggest. The downtown BLVD district is a publicly recognized state cultural district with a library, a performing arts center, and a museum of art and history concentrated within a few walkable blocks. The Metrolink Antelope Valley Line connects the city to Los Angeles Union Station, making a regional commute possible. Aerospace and defense employers anchor the local economy, with Lockheed Martin, Northrop Grumman, and Edwards Air Force Base among the region's largest. Healthcare, public education, and retail round out the employment base.
The housing market near the school runs well below the California statewide median home value, making it considerably more accessible for buyers than most of Los Angeles County, though the rent-to-income ratio still places a real burden on renter households. Home values have edged slightly downward year over year in the most recent data.
For a family weighing this school, the academic proficiency picture is the central fact to sit with. The numbers are low across every tested grade and subject, and a parent would be well served by asking the school directly about literacy and math supports, intervention programs, and how student progress is tracked year to year. The school does not offer the kind of selective or specialized pathway that would draw a family from outside the attendance area. What it is is a neighborhood elementary school in a community with genuine economic challenges, and anyone enrolling here should go in with clear eyes and active engagement with teachers and staff.
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