Alpharetta along Highway 9 north of Windward Parkway: ZIP codes 30009 and 30004, mostly zoned for Cambridge High, with North Park on Cogburn Road.
Last checked Oct. 4, 2026. Sources: the Windward Parkway and Highway 9 Strategic Master Plan (PDF) of the cities of Alpharetta and Milton, Fulton County Schools address map data, the state’s 2025 School Grades data, Zillow Research, MARTA and OpenStreetMap.
North of Windward Parkway, Alpharetta follows Highway 9 (North Main Street) and Cogburn Road up toward the Milton line. It is a mix of subdivisions, townhomes, apartments and the big retail stretch on Windward Parkway west of Georgia 400.
What this means for you
- Zoned high school: mostly Cambridge High, in Milton (65% of addresses), then Milton High and Alpharetta High. Check your address with the district’s Find Your School lookup.
- Home value: $759,646 in ZIP 30009 and $757,088 in ZIP 30004 in August 2026, according to the Zillow Home Value Index.
- Nearest Georgia 400 exit: exit 11, Windward Parkway.
Part of our Alpharetta neighborhoods guide.
Where it is
On this page the area is the part of Alpharetta west of Georgia 400 and north of about Windward Parkway, along Highway 9 and Cogburn Road to the city limit. The city line is irregular here, and some streets off Highway 9 are in Milton. OpenStreetMap marks Andover North as a named neighborhood in the area.
It falls inside the study area of the Windward Parkway and Highway 9 Strategic Master Plan, dated Feb. 23, 2024, which Alpharetta and Milton wrote with True North 400, the local community improvement district. The plan says:
- The whole study area, in both cities, covers 2,944 acres and holds just under 6,000 homes: 13% single-family detached, 28% townhomes and 59% apartments.
- Highway 9 carries about 20,000 vehicles a day through the district.
- Windward Parkway between Georgia 400 and Highway 9 is home to regional offices and hundreds of stores, including Costco, Walmart and Home Depot.
GDOT is widening Highway 9 between Upper Hembree Road and Windward Parkway; see our getting around guide and road closures page.
The district’s map data puts 54% of the area’s Alpharetta addresses in ZIP code 30009 and 46% in 30004. Addresses inside city limits get Alpharetta police, fire and trash service.
Schools
Of the Alpharetta addresses in this area in the district’s map data on Oct. 4, this is how they split. Scores are 2025 College and Career Ready Performance Index (CCRPI) figures from the state’s School Grades report.
| Level | School | Share of addresses | 2025 CCRPI |
|---|---|---|---|
| High | Cambridge High (report card) | 65% | 92.7 |
| High | Milton High (report card) | 28% | 92.8 |
| High | Alpharetta High (report card) | 7% | 93.0 |
| Middle | Hopewell Middle (report card) | 72% | 96.1 |
| Middle | Northwestern Middle (report card) | 28% | 87.0 |
| Elementary | Cogburn Woods Elementary (report card) | 46% | 97.0 |
| Elementary | Alpharetta Elementary (report card) | 40% | 90.4 |
| Elementary | Summit Hill Elementary (report card) | 8% | 92.5 |
| Elementary | Manning Oaks Elementary (report card) | 7% | 84.5 |
Hopewell Middle, Cogburn Woods Elementary and Summit Hill Elementary have Alpharetta mailing addresses but sit inside Milton, and Cambridge High is in Milton, the district’s school records show. Every school, with its zone map: Alpharetta public schools.
Home values
According to the Zillow Home Value Index, a modeled typical value for the middle third of homes and not a sale price:
| ZIP code | August 2026 | August 2025 | Change |
|---|---|---|---|
| 30009 | $759,646 | $742,804 | +2.27% |
| 30004 (Zillow files it under Milton) | $757,088 | $751,784 | +0.71% |
| Alpharetta, citywide | $716,629 | $718,009 | -0.19% |
Both ZIP codes reach well beyond this area. More in our home prices guide.
Parks and trails
From the city’s parks and facilities pages:
- North Park, 13450 Cogburn Road, a community park. The Alpharetta Adult Activity Center shares the address.
- Cogburn Road Park, 12825 Cogburn Road.
The Big Creek Greenway runs on the other side of Georgia 400; see our walking and biking trails guide.
Getting around
- Georgia 400: exit 11, Windward Parkway, by the exit numbers in OpenStreetMap.
- Downtown: about 1.7 miles from the middle of the area to City Hall by road.
- Airport: about 37 miles to Hartsfield-Jackson Atlanta International Airport. Both are distances measured on the OpenStreetMap road network with the OSRM routing engine, not drive times.
- MARTA: route 185 stops along North Main Street at Cogburn Road, Henderson Parkway and Windward Parkway, according to MARTA’s schedule data. It runs to North Springs Station. MARTA’s Windward park-and-ride lot is east of Georgia 400.
Groceries and everyday stores
From OpenStreetMap:
- Kroger, 12870 Highway 9 North, inside city limits
- Walmart Supercenter, 5200 Windward Parkway, just outside the city line
- Aldi, 12990 Highway 9 North, just outside the city line
How we drew this area
The area follows the Alpharetta part of the Windward Parkway and Highway 9 plan’s study area west of Georgia 400, with its southern edge at about Windward Parkway. School shares come from every Alpharetta address point inside it in the Fulton County Schools map service, checked Oct. 4, 2026. City limits are from OpenStreetMap’s boundary for Alpharetta. Neighborhood names and store locations are © OpenStreetMap contributors.
Frequently asked questions
What high school serves north Alpharetta along Highway 9?
Most addresses there, 65% in the district’s map data, are zoned for Cambridge High in Milton. Milton High takes 28% and Alpharetta High 7%. Check one address with the Fulton County Schools zone lookup.
Is the Highway 9 area north of Windward Parkway in Alpharetta or Milton?
Both. Alpharetta’s city limits run north along Highway 9 and Cogburn Road past Windward Parkway, and Milton begins beyond them. The Windward Parkway and Highway 9 plan of 2024 was written jointly by the two cities.
What parks are near Cogburn Road in Alpharetta?
North Park, at 13450 Cogburn Road, and Cogburn Road Park, at 12825 Cogburn Road, are city parks. The Alpharetta Adult Activity Center shares the North Park address.
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