River Ridge High, Woodstock: zone, report card and calendar

Last checked Oct. 6, 2026. Sources: the River Ridge High website, the Cherokee County School District’s boundary maps, geographic assignment chart (PDF), start and end times and 2026-27 calendar, the Governor’s Office of Student Achievement’s 2025 School Grades data, the Georgia High School Association and the federal NCES school directory.

River Ridge High School is a Cherokee County School District high school for ninth through 12th grade. Its mailing address says Woodstock, but the campus sits outside the city limits, in unincorporated Cherokee County, according to the Census Bureau’s geocoder.

The school’s Who We Are page says it serves more than 1,900 students and takes its name from the Little River, which borders the campus, and a high ridge on the property near the river.

• Address: 400 Arnold Mill Road, Woodstock, GA 30188
• Phone: 770-721-6500
• Grades: 9 to 12
• Website: rrhs.cherokeek12.net
• School day: 8:15 a.m. to 3:15 p.m.

Who to call

• River Ridge High front office: 770-721-6500
• Which school serves my address: the district, 770-479-1871, or its boundary maps
• Enroll a student: the district’s online registration; help at enrollment.support@cherokee.incidentiq.com
• Buses: the district’s River Ridge zone transportation line, 770-721-5576, listed on its transportation contacts page, and the bus stop look-up

Principal

Principal Justin Sanderson, according to the school’s website.

Enrollment and teachers

The state counted 1,963 students at River Ridge High in its 2025 School Grades data, covering the 2024-25 school year, against 2,007 a year earlier. The most recent federal figure, from the NCES directory for the 2023-24 school year, is 1,956 students and 114 full-time-equivalent teachers, about 17.2 students per teacher.

State report card

River Ridge High’s 2025 CCRPI single score was 90.9, according to the state’s School Grades data. The Georgia average for high schools was 76.9 and the Cherokee County School District’s was 89.8. The school scored 89.0 in 2023 and 91.0 in 2024. Scores can move a lot from one year to the next at a single school. The full report card, with subgroups and the parts of the score, is on the state’s River Ridge High report card.

The state’s 2025 data put the four-year graduation rate at 95.7% for the Class of 2025, against 87.2% for Georgia and 91.8% for the district. For the Class of 2026, the district reported Sept. 28 a rate of 98.5%, against 93.8% districtwide and 88.5% statewide.

CCRPI is the Georgia Department of Education’s “comprehensive school improvement, accountability, and communication platform,” according to GaDOE. The single score runs from 0 to 100 and is built from content mastery, progress, closing gaps and readiness, plus graduation rate for high schools. Georgia does not publish an A-to-F letter grade for schools in its 2025 data.

Georgia Milestones end-of-course tests, 2025, share of tested students scoring Proficient and Distinguished, the two upper achievement levels:

Attendance zone

Zones are set by the district and do not follow city limits or ZIP codes. Open the district’s River Ridge High zone map (PDF) from its boundary maps page, or call 770-479-1871 to confirm the school for an address, as the district’s enrollment page advises.

The district’s geographic assignment chart (PDF) sends Mill Creek Middle to River Ridge High, with these elementary schools feeding that middle school: Arnold Mill Elementary, Johnston Elementary and Little River Elementary.

Inside the city limits, about 53% of buildings are zoned for Woodstock High and 47% for River Ridge High, according to our Woodstock neighborhoods guide, which matched city buildings to the district’s maps.

Our neighborhood guides with homes in this zone: Arnold Mill Road, Neese Road, South Main, Trickum Road and The Woodlands.

We found no boundary change approved by the school board that affects River Ridge High for 2026-27. The district says the superintendent recommends school boundaries and the board approves them each year, with focus-group hearings when new schools open or growth requires changes.

Sports and activities

River Ridge High plays in Region 6-AAAAAA of the Georgia High School Association for 2026-27, according to the GHSA region alignment. The other region schools are Creekview, Kell, Lassiter, Pope, Rome, Sequoyah and Woodstock. The teams are the Knights, according to its athletics site. Schedules and results: our Friday night football page and the scoreboard.

The school’s athletics site carries schedules and rosters; its current listings include football, flag football, softball, volleyball and girls lacrosse.

Programs, as the school names them: Advanced Placement, dual enrollment, career pathways and fine arts, the programs the school’s Who We Are page names.

Calendar and bell times

The district’s start and end times page has River Ridge High starting at 8:15 a.m. and dismissing at 3:15 p.m. for 2026-27 (every Cherokee County high school keeps 8:15 a.m. to 3:15 p.m. except Cherokee and Creekview).

From the district’s 2026-27 calendar:

• Monday, Oct. 12: student holiday, teacher planning
• Tuesday, Nov. 3: Election Day, remote learning day for students
• Nov. 23-27: Thanksgiving break, schools and district closed
• Friday, Dec. 18: last day of the first semester
• Dec. 21 to Jan. 1: holiday break; Monday, Jan. 4, is a student holiday and classes resume Tuesday, Jan. 5
• Jan. 28-29: conference days, early release for all grades
• Feb. 15-19 and April 5-9: weeklong breaks
• Tuesday, May 25, 2027: last day of school

More

• The school’s website and athletics
• The state’s report card for River Ridge High
• The district’s boundary maps
• Every public school in Woodstock, with zones and scores: our Woodstock public schools guide
• District calendar, registration and the school board: our Woodstock schools guide

Frequently asked questions

What grades does River Ridge High serve?

Ninth through 12th grade. The state counted 1,963 students in the 2024-25 school year.

What is River Ridge High’s CCRPI score?

90.9 in 2025, according to the state’s School Grades data, against a Georgia high school average of 76.9 and a Cherokee County School District average of 89.8.

What is River Ridge High’s graduation rate?

98.5% for the Class of 2026, the district said Sept. 28, 2026. The state’s 2025 data put it at 95.7% for the Class of 2025.

What region is River Ridge High in?

Region 6-AAAAAA of the Georgia High School Association for 2026-27.

What time does River Ridge High start?

The district’s 2026-27 schedule has River Ridge High starting at 8:15 a.m. and dismissing at 3:15 p.m.