Total monthly cost of ownership
Cost to Own a Home in Marietta, Georgia
A $401,000 home here costs
$2,987per month, all in — with 20% down at today's 6.66% 30-year fixed rate.
A standard mortgage calculator would have told you $2,062. The real number is $925 higher every month — 45% more than the payment most buyers budget for.
Where every dollar goes
Only the first line is a mortgage payment. Change any assumption above and every figure below recalculates.
Marietta against Cobb County and Georgia
| Measure | Marietta | Cobb County |
|---|---|---|
| Median home value | $401,100 | $373,700 |
| Median property tax | $2,477 | $2,560 |
| Effective tax rate | 0.618% | 0.685% |
| Median gross rent | $1,491 | $1,640 |
| Population | 61,773 | 769,152 |
The weather behind that power bill
Marietta sits in Cobb County, which averages a high of 90.0°F in its hottest month and a low of 33.5°F in its coldest, with 48.13" of precipitation a year and 27% of it in a single three-month stretch. That climate drives 1,826 cooling and 2,775 heating degree days, which is what sets the $142 electricity line above.
See the full climate breakdown for Cobb County — month by month temperatures, rainy season timing, snowfall and heating and cooling costs.
Other cities in Cobb County
Common questions
How much does it cost to own a home in Marietta?
A $401,000 home in Marietta, Georgia costs approximately $2,987 per month with 20% down at 6.66%. That is $2,062 principal and interest, $207 property tax, $174 homeowners insurance, $210 utilities and $334 set aside for maintenance.
What is the property tax rate in Marietta?
Marietta has an effective property tax rate of 0.618%, based on a median home value of $401,100 and median real estate taxes of $2,477. That is lower than the Cobb County average of 0.685%.
What is the average home price in Marietta?
The median owner-occupied home value in Marietta, Georgia is $401,100, against $373,700 across Cobb County.
Is it cheaper to rent or buy in Marietta?
Median gross rent in Marietta is $1,491 a month, against $2,987 to own the median home all in. Renting costs less month to month here, though renting builds no equity.
Sources & methodology
- Median home value, real estate taxes, gross rent and population for Marietta — US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
- Homeowners insurance — NAIC average premium for Georgia.
- Electricity price — EIA Electric Power Monthly Table 5.6.A.
- Mortgage rate — Freddie Mac PMMS, refreshed weekly.
- Maintenance (1%/yr) and water and sewer ($68/mo) are national estimates. Every assumption above is editable.