29 public K-12 schools in Alpharetta from NCES Common Core of Data: enrollment, grade span, demographics, and Civil Rights Data Collection statistics for every active campus.
29 public schools ranked by quality score. NCES CCD 2024-25 data.
The highest-ranked of Alpharetta's 29 public schools is Denmark High School, scoring 39/100, against a city average of 46.4/100. Computed live across every Alpharetta campus reporting to NCES.
How the Alpharetta Public-School Landscape Breaks Down
Alpharetta, GA enrolls 29,794 students across 29 public schools reporting to the National Center for Education Statistics. Of those, 1 are charter schools, giving families genuine alternatives to the traditional neighbourhood assignment model. The average student-teacher ratio across the city is 15.4:1, and the composite quality score, derived from student-teacher ratio, counselor access, gifted-program availability, and CRDC attendance data, averages 46.4/100. Schools must report at least five campuses in a city to appear in this listing, which is why very small towns may redirect to the broader county or state view.
The most-resourced campus in Alpharetta on this index is Denmark High School, at 39/100 on the Resource Investment Index with 2,527 enrolled students. What the index does and doesn't measure; click any school below for its full component breakdown.
Alpharetta spans 2 districts, each filing its own NCES F-33 return, per-pupil spending can vary between neighbouring campuses. Sort the table below by enrollment, level, or district; click any school for its full profile.
Alpharetta school enrollment varies 5.1× across entities
Alpharetta school enrollment ranges from 498 students (lowest) to 2,527 students (highest), a spread of 2,029 students. That relatively narrow ratio reflects an unusually homogeneous school portfolio for a city this size. Per-school staffing, programme depth, and capital-renovation cycles often diverge inside the same city based on enrollment shape, a 200-student magnet runs a different operational model than a 2,000-student comprehensive high school.
Alpharetta student-teacher ratio is 15.4:1 — near the typical range (US average ~15.7) — aligned with the U.S. average of approximately 15.7:1
student-teacher ratio is the simplest comparative metric but it does not capture the full picture: the ratio counts FTE classroom teachers against total enrollment, push-in specialists, English-language aides, special-education co-teachers, and counselors are not included in most reporting Variation between sub-units within Alpharetta is typically wider than the Alpharetta-aggregate figure suggests.
Most racially and ethnically mixed schools in Alpharetta
Ranked by the Simpson student-body diversity index (0-100) from NCES race and ethnicity data, where higher means a more evenly mixed student body. It measures mix, not quality.
The highest-ranked school in Alpharetta is Denmark High School with a quality score of 39/100. There are 29 public schools in Alpharetta with 29,794 total students.
How many schools are in Alpharetta, GA? ▼
Alpharetta has 29 public schools with a total enrollment of 29,794 students. 1 are charter schools. Average student-teacher ratio: 15.4:1.
Data from NCES Common Core of Data (CCD) 2024-25 and Civil Rights Data Collection (CRDC) 2021-22. Quality scores based on student-teacher ratio,
counselor access, gifted programs, and attendance. Schools must have 5+ in the city to be listed.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the NCES Common Core of Data (CCD). Consult a qualified professional before making decisions based on this data.
Read our methodology, which explains how this data is sourced, computed, and verified.
