Summary:
ZIP code 23112 in Midlothian, Virginia is home to three public high schools serving grades 9-12, all part of Chesterfield County Public Schools, a district ranked 73 out of 131 in Virginia. Cosby High is the clear academic leader of the three, ranking 70th in the state with a 4-star rating. It posts a 97.3% graduation rate, a 2.6% dropout rate, and chronic absenteeism of just 7.3% — roughly half the state average. Only 16% of Cosby students qualify for free or reduced-price lunch, the lowest in the area. Cosby has slipped from rank 40 in 2023-24 to 70 in 2025-26, but it remains the only top-quintile school in the ZIP code, with multiple 100% proficiency scores on SOL tests.
Manchester High faces the greatest challenges. With nearly 74% of students eligible for free or reduced-price lunch, it ranks 239th in Virginia with a 1-star rating, a 90% graduation rate, and an 8.4% dropout rate. Interestingly, Manchester receives the most funding per student ($8,735) and has the smallest class sizes (13.5 students per teacher), yet its test scores lag well behind the other schools. Clover Hill High sits in the middle, ranking 162nd with a 3-star rating, a 92.4% graduation rate, and moderate poverty levels at 32.4% free/reduced lunch.
A stark socioeconomic divide exists within this single ZIP code — nearly 58 percentage points separate Cosby's and Manchester's poverty rates, and that gap tracks closely with every major outcome. Across all three schools, freshmen outperform upperclassmen on SOL tests, and history is the weakest subject area. For example, 11th-grade VA/US History proficiency ranges from 55.9% at Cosby down to 27% at Manchester and 23.4% at Clover Hill. Even the area's strongest school shows history scores barely above half. In short, poverty — not school spending — is the strongest predictor of academic outcomes in 23112.
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