For families moving to or within Grayson County, school district selection is often the single most consequential decision in the homebuying process. 

The county spans multiple independent school districts — each with its own academic profile, campus culture, extracurricular offerings, and growth trajectory. Understanding what each district offers, and how to match a district's strengths to your family's priorities, is the starting point for making a well-informed choice.

How Texas School Districts Are Evaluated

The Texas Education Agency (TEA) rates school districts and individual campuses annually through the A–F accountability system. Ratings reflect student achievement, academic growth, and closing performance gaps between student groups. 

One critical caveat: district-level ratings mask campus-level variation. Always look up the specific campus your child would attend — not just the district rating.

Sherman ISD

Sherman ISD is the largest school district in Grayson County, serving the city of Sherman and surrounding areas. With multiple elementary campuses, two middle schools, and Sherman High School, SISD offers the broadest range of academic programs and extracurricular options of any district in the county.

• Enrollment: Approximately 8,000 to 9,000 students

• TEA rating (2025): B — solid performance with ongoing improvement initiatives

• Notable programs: Dual-credit courses through Grayson College, CTE programs in healthcare, technology, and skilled trades, fine arts academies, and UIL athletics

• Best for: Families who want broad program variety and a full high school experience in a mid-sized campus setting

Denison ISD

Denison ISD serves the city of Denison and has been on an improving trajectory over the past several years under stable leadership and renewed community investment.

• Enrollment: Approximately 4,500 to 5,000 students

• TEA rating (2025): B — improved from prior years; positive trend

• Best for: Families who value a community-connected school experience and a district on a clear upward trajectory

Van Alstyne ISD

Van Alstyne ISD is the standout academic district in Grayson County and consistently earns the strongest TEA ratings in the county. The district has managed rapid enrollment growth while maintaining tight-knit community culture and strong parent engagement.

• Enrollment: Approximately 3,500 to 4,000 students and growing

• TEA rating (2025): A — among the highest-rated districts in North Texas

• Best for: Families prioritizing academic performance, community connection, and a smaller-district feel with quality programming

Pottsboro ISD

Pottsboro ISD serves the Pottsboro area and lake corridor communities. A smaller district with a strong community identity — smaller classes, well-known teachers, and a community where students and families connect across grade levels.

• Enrollment: Approximately 1,200 to 1,500 students | TEA rating (2025): B

• Best for: Families in the lake corridor who want a small-district experience and strong community connection

Whitesboro ISD and Gunter ISD

Whitesboro ISD serves western county communities with a proud rural Texas character and strong athletic traditions. Gunter ISD, in the county's southeastern corner near the Collin County line, has a dedicated following — its football program has achieved state-level recognition and the district's close-knit character appeals strongly to families choosing rural small-town life.

Other Grayson County Districts

Tom Bean ISD, Howe ISD, Bells ISD, and Collinsville ISD serve smaller rural communities throughout the county, each known for close community relationships and small class sizes.

Private School Options

• Grayson Christian School (Sherman): K-12 private Christian education with faith integration and small class sizes

• Sherman Christian School: Faith-based alternative in Sherman for families seeking private Christian education

• Homeschool co-ops: An active homeschool community operates in Grayson County with cooperative learning groups and social programming

Practical Enrollment Guidance

• Verify campus at your specific address: School district websites have address lookup tools. In rapidly growing areas like Van Alstyne and west Sherman, boundary lines shift regularly — always verify before purchasing.

• Required documents for enrollment: Proof of residency, birth certificate, immunization records, and prior school records

Frequently Asked Questions

What is the best school district in Grayson County?

Van Alstyne ISD consistently earns the highest TEA ratings in Grayson County and is widely regarded as the county's top-performing district for academic outcomes. For families who want broad program variety and a larger campus experience, Sherman ISD offers the most extensive course catalog.

Is Sherman ISD a good school district?

Sherman ISD is a solid, improving district with a TEA B rating, strong CTE programs, and the broadest extracurricular offerings in the county. Families who research individual campus ratings within SISD will find meaningful variation — some elementary campuses consistently outperform others.

Resources

• Texas Education Agency — District Search & Ratings

• Sherman ISD

• Denison ISD

• Van Alstyne ISD