ZIP CODE 30066 // ATLANTA-SANDY SPRINGS-ALPHARETTA, GA // DATA AS OF 2026-09-30
Marietta, GA (30066) Rental Property Cap Rate & Cash Flow Report
Located in Cobb County (Marietta, GA), Zip Code 30066 ranks #258 of 500 within this selected sample (49th percentile) with a Zillow ZHVI typical home-value index of $441,506 (-1.9% YoY) and a ZORI observed market rent of $1,865/mo (+2.8% YoY). Requires at least 59.4% down payment at 6.5% interest to reach $0/mo break-even cash flow. This model combines different housing populations; it is not an observed average property return. Costs assume state-average tax, 0.5% annual insurance, 13% reserves and no HOA or management. Figures below follow your edits; this headline describes the original benchmark.
Net Monthly Cash Flow
-$1,099/mo
Annual: -$13,192/yr
Modeled Cap Rate
3.08%
NOI: $13,598/yr
Cash-on-Cash Return
-12.99%
Cash Needed: $101,546
1% Rule Ratio
0.42%
Gross Yield: 5.07%
Break-Even Rent
$3,129/mo
State Tax: 0.83%/yr
INTERACTIVE PRO-FORMA STATEMENT (ZIP 30066 BENCHMARK)
Edit any value
Purchase Price (ZHVI proxy)
Monthly Gross Rent (ZORI proxy)
Down Payment (%)
Interest Rate (30Y Fixed %)
Annual Property Tax (GA Avg 0.83%)
Annual Home Insurance ($)
Monthly HOA Fee ($)
Monthly Debt Service (P&I)
-$2,232/mo
Monthly Operating Expenses (Tax + Ins + 13% Reserves)
-$732/mo
HISTORICAL ZHVI PRICE VS. ZORI RENT TRAJECTORY (30066)
| Year | ZHVI Value | ZORI Rent | Gross Yield |
|---|---|---|---|
| 2021 | $368,903 | $1,580/mo | 5.14% |
| 2022 | $434,082 | $1,730/mo | 4.78% |
| 2023 | $444,489 | $1,759/mo | 4.75% |
| 2024 | $458,604 | $1,815/mo | 4.75% |
| 2025 | $450,041 | $1,814/mo | 4.84% |
| 2026 | $441,506 | $1,865/mo | 5.07% |
COMPARABLE U.S. RENTAL MARKETS
| Zip / City | Price | Rent | Cap Rate | Cash Flow |
|---|---|---|---|---|
| 30096 Duluth, GA | $403,704 | $1,616/mo | 2.85% | -$1,083/mo |
| 30040 Cumming, GA | $581,701 | $2,299/mo | 2.80% | -$1,586/mo |
| 30114 Canton, GA | $467,647 | $1,841/mo | 2.78% | -$1,281/mo |
| 30144 Kennesaw, GA | $381,197 | $1,766/mo | 3.51% | -$814/mo |
| 30188 Woodstock, GA | $462,199 | $2,164/mo | 3.56% | -$967/mo |
| 30043 Lawrenceville, GA | $399,072 | $1,916/mo | 3.68% | -$793/mo |