Average mortgage payment in Cobb County, GA (2026)
The average mortgage payment in Cobb County on a median-priced home (~$390,000) is roughly $3,053/month — assuming 10% down at a 6.85% 30-year fixed rate and Georgia's 0.92% effective property tax rate (full PITI).
To carry that payment under the standard 28% front-end DTI rule, you'd need an annual household income near $130,841. County population is roughly 766,149.
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How Cobb County compares to Georgia
The typical home in Cobb County is 22% above the statewide median of $320,000 in Georgia. Property tax is set at the state's effective rate of 0.92% — local millage and special assessments vary by county, but this is the right starting point.
The payment above bakes in principal, interest, property tax, and homeowners insurance — it does not include HOA dues or mortgage insurance (PMI). PMI kicks in automatically when down payment is below 20% on a conventional loan. For a full breakdown, run your own numbers in the main calculator.
Frequently asked questions
What is the average mortgage payment in Cobb County?+
On a median Cobb County home (~$390,000) at a 6.85% 30-year fixed rate with 10% down, all-in PITI runs about $3,053/month, including ~$299 in property tax.
What income do I need to buy a home in Cobb County?+
Using the 28% front-end DTI rule, you'd need roughly $130,841 in annual gross household income to comfortably carry the median Cobb County home.
How does Cobb County compare to the rest of Georgia?+
Cobb County's median home ($390,000) is 22% above the Georgia median of $320,000.
Does this include HOA fees or PMI?+
No. HOA dues vary too widely to assume a default — add them directly to the payment. PMI applies when you put less than 20% down on a conventional loan; the main calculator factors it in automatically.