But how did Cobb vote?
She also won Gwinnett County, a three-decades long Republican stronghold.
The Atlanta Journal-Constitution created an interactive map — the full version of which can be seen and used here — showing how each precinct in Cobb and metro Atlanta voted this presidential election. Users can type in an address to see which direction a neighborhood leaned.
At a glance, the northeast and northwest corners of Cobb went for Trump while the center and southern parts of the county voted Clinton.
Diving deeper, Clinton won over 79 percent of the county's majority-black precincts and 51 percent of majority-Hispanic precincts.
Clinton got 79 percent of the vote in precincts where the average household income is less than $50,000.
The top 5 Cobb neighborhoods for Clinton:
- Bryant 02 (Trinity United Methodist Church, 821 South Gordon Road SW in Austell): 94 percent
- Bryant 01 (Bryant Intermediate School, 6800 Factory Shoals Road SW in Austell): 94 percent
- Riverside 01 (Riverside Intermediate School, 285 South Gordon Road in Mableton): 91 percent
- Pebblebrook 01 (Pebblebrook High School, 991 Old Alabama Road in Mableton): 82 percent
- Marietta 7A (Cobb County Civic Center, 548 South Marietta Parkway in Marietta): 81 percent
Trump got 60 percent of the vote in precincts where the average household income is above $100,000.
And when it came to majority-white precincts, Trump won 57 percent.
A total of 59 percent of Cobb's registered voters are white.
The only precincts in the southern half of the county that Trump won were Vinings 04, Cochise Riverview Club, and Mableton 04, Floyd Middle School.
The top 5 Cobb neighborhoods for Trump:
- Mars Hill 01 (Northwest Christian Church, 3737 Dallas-Acworth Highway NW in Acworth): 77 percent
- Kemp 03 (Burnt Hickory Baptist Church, 5145 Due West Road in Powder Springs): 76 percent
- Pine Mountain 02 (Burnt Hickory Church of Christ, 2330 Burnt Hickory Road in Marietta): 76 percent
- Lost Mountain 02 (Lost Mountain Middle School, 700 Old Mountain Road in Kennesaw): 75 percent
- Harrison 01 (Harrison High School, 4500 Due West Road in Kennesaw): 74 percent
Compared to the 2012 election Barack Obama won 60 percent of metro Atlanta but only took 41 percent of Cobb.
Mitt Romney came up with 58 percent of Cobb that election.