Cobb County Property Tax Rates 2024: Complete Guide for Homeowners and Buyers
Understanding property tax rates in Cobb County, Georgia is crucial for homeowners and potential buyers looking to make informed real estate decisions. With a median home price of $425,000 and an effective property tax rate of 0.88%, Cobb County offers competitive rates while maintaining excellent schools and infrastructure that attract families throughout Metro Atlanta.
Current Cobb County Property Tax Rates and Assessment
Cobb County's property tax rate for 2024 stands at 8.8 mills (0.88%), which translates to $8.80 per $1,000 of assessed value. This rate is calculated on 40% of the property's fair market value, making the effective rate competitive compared to neighboring counties like Fulton (0.92%) and DeKalb (1.05%).
Property assessments in Cobb County are conducted annually by the Cobb County Board of Assessors, with values typically reflecting market conditions from the previous year. The county's strong population growth of 8.2% over the past five years has contributed to steady property value appreciation across communities like Marietta, Smyrna, and Kennesaw.
How Property Taxes are Calculated in Cobb County
Your annual property tax bill is determined by multiplying your home's assessed value by the millage rate. For example, a home valued at $400,000 would have an assessed value of $160,000 (40% of market value), resulting in an annual tax bill of approximately $1,408.
The millage rate includes funding for:
- Cobb County Schools (5.75 mills)
- County operations (2.25 mills)
- Municipal services (varies by city)
- Special districts and authorities (0.8 mills)
Property Tax Rates by City in Cobb County
Different municipalities within Cobb County have varying total tax rates due to additional city millage:
Marietta Property Taxes
Total millage rate: 11.45 mills (1.145%). Marietta's historic downtown and proximity to the Big Chicken make it a desirable location, with median home prices around $450,000. The city's excellent schools, including Marietta High School with its 8/10 rating, justify the slightly higher tax rate.
Smyrna Property Taxes
Total millage rate: 10.2 mills (1.02%). Known for its vibrant Market Village and strong community programs, Smyrna offers excellent value with median home prices of $380,000. The city's efficient services and highly-rated Campbell High School (9/10 rating) attract young families.
Kennesaw Property Taxes
Total millage rate: 9.8 mills (0.98%). Home to Kennesaw State University, this growing city combines college town energy with family-friendly neighborhoods. Median home prices of $395,000 reflect the area's popularity among professionals and families.
Acworth Property Taxes
Total millage rate: 10.1 mills (1.01%). This lakeside community offers scenic beauty around Lake Allatoona with median home prices of $365,000. The area's natural amenities and quality schools make it attractive for families seeking a suburban lifestyle.
Cobb County School District Impact on Property Values
The Cobb County School District significantly influences property values and tax considerations. With an overall district rating of 7/10, the system includes several top-performing schools:
- Walton High School (10/10 rating) in East Cobb
- Pope High School (9/10 rating) in East Cobb
- Lassiter High School (9/10 rating) in East Cobb
- Hillgrove High School (8/10 rating) in Powder
Active Homes in Cobb County
Browse current listings in and around Cobb County.

$5,995,000
2 bd7 ba1,986 sqft
4571 Columns Drive SE
Marietta, GA 30067

$5,495,000
3 bd7 ba2,008 sqft
4488 Doral Circle SE
Marietta, GA 30067

$4,995,000
4 bd7 ba2,007 sqft
271 Pine Valley Drive SE
Marietta, GA 30067

$4,495,000
8 bd7 ba2,003 sqft
4351 Paper Mill Road SE
Marietta, GA 30067

$3,995,000
9 bd6 ba2,026 sqft
101 Coronado Court
Marietta, GA 30067

$3,500,000
6 bd7 ba2,025 sqft
4232 Edgewood Court
Marietta, GA 30068
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