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Best Public Schools in Zip Code 21821


At a glance
1
School
117
Students
Top rankedDeal Island School344th of 865 Maryland elementary schools
Biggest riser
Deal Island School up 77 spots statewide this year
Summary:

Zip code 21821, located in Deal Island, Maryland, is home to a single elementary school, Deal Island School, which serves 117 students from Pre-Kindergarten through 5th grade within the Somerset County Public Schools district.

Deal Island School stands out as a clear academic bright spot in a district that ranks near the bottom of Maryland (8th percentile). The school consistently performs in the top half of all Maryland elementary schools, earning a 3-star rating and ranking 344th out of 864 schools for the 2025-2026 school year. Its Math proficiency rate of 34.6% is nearly three times the district average of 12.1%, and its English Language Arts proficiency of 55.8% significantly exceeds the district's 34.0%. The school benefits from a very low student-teacher ratio of 14.6:1 and high per-student spending of $23,361, though this high investment does not translate into top-tier state performance. A notable challenge is a dramatic drop in Math proficiency between 3rd grade (50% proficient) and 4th grade (25% proficient), suggesting a difficult curriculum transition or a need for targeted support. Additionally, chronic absenteeism is a major concern, with 28.4% of students missing 10% or more of the school year, though this is lower than the district average of 33.7%.

While the school excels in Math and ELA relative to its district, its 5th-grade Science proficiency of 31.3% is essentially at the state average of 32.4%, indicating a potential area for growth. With 52.14% of students receiving free or reduced lunch, the school serves a moderately economically disadvantaged population. Overall, Deal Island School offers a strong academic environment compared to its surrounding district, but faces challenges with grade-level performance dips and high absenteeism that families should consider.

Ranking:
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Cities Near Zip Code 21821

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SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Maryland State Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.

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