Rental numbers for ZIP 63120 (Saint Louis, MO)
Cash-flow positive at today's 7.78% investor rate with 25% down: about $583 a month on the typical home.
- Gross yield
- 35.8%
- rent x 12 / price
- Est. cap rate
- 24.6%
- NOI / price
- Cash flow
- +$583/mo
- at 7.78%, 25% down
- Typical price
- $38,000
- Zillow ZHVI, Aug 2026
- Typical rent
- $1,149/mo
- Zillow ZORI, Aug 2026
The pro forma
Typical home, default assumptions
| Operator | Line | Amount | Source |
|---|---|---|---|
| Gross rent | $13,788 | ||
| Vacancy | $689 | ||
| Management | $1,048 | ||
| Property tax | $264 | ||
| Insurance | $1,907 | ||
| Maintenance | $385 | ||
| Net operating income | $9,495 | ||
| Loan payments | $2,489 | ||
| Cash flow | $7,005 |
| Operator | Line | Amount | Source |
|---|---|---|---|
| Typical price | $38,498 | ||
| Down payment (25%) | $9,625 | ||
| Loan | $28,874 | ||
| Rate | 7.78% | ||
| Monthly payment | $207 | ||
| Cash in | $10,779 | ||
| Cash-on-cash return | 65.0% | ||
| DSCR | 3.81 | ||
| Break-even rate | above 30% |
Assumptions
Change them in the calculator- Down payment25%
- A common minimum for investment-property and DSCR loans.
- Interest rate7.78%
- Freddie Mac 30-year 7.03% (week of 2026-09-24) + 0.75 point investor premium.
- Loan term30 years
- Fixed, fully amortising.
- Closing costs3% of price
- Added to cash invested.
- Insurance$1,907 a year
- NAIC 2023 average homeowners (HO-3) premium for Missouri, $1,589, x 1.2 for a landlord policy.
- Maintenance1% of price a year
- The 1% rule of thumb; older homes run higher.
- Vacancy5% of rent
- About 18 days empty a year.
- Management8% of collected rent
- A typical full-service fee; zero if you self-manage.
Trends
Five years to August 2026
- Price, 12 months
- +2.5%
- Rent, 12 months
- n/a
- rent series under a year old
- Rent minus price growth
- n/a
- positive means yields are improving
Show the numbers
| Month | Typical value | Rent |
|---|---|---|
| Aug 2021 | $38,854 | n/a |
| Aug 2022 | $41,642 | n/a |
| Aug 2023 | $38,293 | n/a |
| Aug 2024 | $40,788 | n/a |
| Aug 2025 | $37,540 | n/a |
| Aug 2026 | $38,498 | $1,149 |
Rent references
Two sources, never blended
| Source | Studio | 1 bed | 2 bed | 3 bed | 4 bed |
|---|---|---|---|---|---|
| HUD Small Area FMR, FY2026 | $810 | $840 | $1,030 | $1,330 | $1,530 |
| Zillow observed rent, Aug 2026 | $1,149 typical, all home types | ||||
HUD's Fair Market Rent is the 40th percentile gross rent (rent plus utilities) for a standard unit, and it is what Section 8 vouchers pay against. Zillow's index tracks asking rents on listed homes. The two measure different things, so they are shown side by side and never averaged. HUD area: St. Louis, MO-IL HUD Metro FMR Area.
Property tax
- Effective rate
- 0.69%
- ZIP area, ACS
- At the typical price
- $264/yr
Median real estate taxes paid divided by median home value, Census ACS 2020 to 2024. St. Louis city: 1.03%. Actual bills depend on the assessment, exemptions and any non-homestead rate.
Supply
- Permits per 1,000 households
- 2.1
- St. Louis city, last 12 months
- National percentile
- 27th
- among US counties
300 new housing units permitted in 2025-09 to 2026-08, Census Building Permits Survey. A high figure means more new supply competing for tenants.
Nearby ZIP codes
| ZIP | Distance | Typical price | Rent | Gross yield | Cash flow /mo |
|---|---|---|---|---|---|
| 63115Saint Louis | 1.3 mi | $41,000 | $892 | 25.8% | +$343 |
| 63113Saint Louis | 2.4 mi | $52,000 | $877 | 20.2% | +$258 |
| 63121Normandy | 2.4 mi | $87,000 | $1,091 | 15.0% | +$115 |
| 63112Saint Louis | 2.4 mi | $147,000 | $1,284 | 10.5% | -$63 |
| 63133Pagedale | 2.5 mi | $75,000 | $1,160* | 18.6% | +$276 |
| 63147Saint Louis | 2.5 mi | $63,000 | $1,090* | 20.8% | +$362 |
| 63108Saint Louis | 3.2 mi | $313,000 | $1,566 | 6.0% | -$1,031 |
| 63107Saint Louis | 3.3 mi | $47,000 | $1,030* | 26.5% | +$429 |
* HUD Fair Market Rent, 2 bedroom (no Zillow rent index for that ZIP).
Run the numbers on a real listing
The calculator opens with this ZIP's figures. Swap in a listing's price and rent, your rate and your costs.
Open the calculator for 63120Questions
- Is 63120 good for rental property?
- On the typical home here, priced at $38,000 and renting for $1,149 a month (Zillow ZORI, Aug 2026), the gross yield is 35.8% and the estimated cap rate is 24.6%. At a 7.78% investor rate with 25% down, estimated cash flow is +$583 a month. The median gross yield across the 8,418 ZIP codes with full Zillow data is 5.6%. These are figures for a typical property, not a judgement on any particular one.
- What is the typical rent in 63120?
- Zillow's observed rent index for 63120 was $1,149 a month in August 2026, across all home types. HUD's FY2026 Small Area Fair Market Rent for a 2-bedroom here is $1,030, the 40th percentile of gross rents and the basis for Section 8 payment standards.
- What is the property tax rate in 63120?
- The effective property tax rate is about 0.69% of value (median taxes paid divided by median home value, Census ACS 2020 to 2024). On the typical $38,000 home that is about $264 a year. Your bill depends on the assessment and local exemptions.
- What interest rate makes a rental in 63120 break even?
- Cash flow stays positive at any rate up to 30% with the default assumptions.
- How fast are prices and rents changing in 63120?
- Over the 12 months to August 2026, the typical home value changed +2.5%.
Sources and method
- Zillow Home Value Index (ZHVI), mid tier, smoothed and seasonally adjusted
Zillow Research. Read: 2026-08.
Typical home value by ZIP, county, metro and state, and the price trend.
- Zillow Observed Rent Index (ZORI), all homes plus multifamily, smoothed
Zillow Research. Read: 2026-08.
Typical market rent by ZIP, county and metro, and the rent trend (tier A pages).
- HUD Small Area Fair Market Rents, FY2026
US Department of Housing and Urban Development. Read: FY2026.
Rent by bedroom count for every ZIP. The rent used on tier B pages, and a reference on all pages. It is the 40th percentile gross rent, so it runs below market.
- American Community Survey 5-year estimates, 2020 to 2024 (B25103 median real estate taxes paid, B25077 median home value, B11001 households)
US Census Bureau. Read: 2020 to 2024.
Effective property tax rate (median taxes paid divided by median value) by ZIP code tabulation area, county and state; households for the permits ratio.
- Freddie Mac Primary Mortgage Market Survey, 30-year fixed (FRED series MORTGAGE30US)
Freddie Mac via the Federal Reserve Bank of St. Louis. Read: 2026-09-24.
The weekly 30-year rate. The site adds a disclosed investor premium to it for the loan payment.
- Building Permits Survey, county monthly files
US Census Bureau. Read: 2025-09 to 2026-08.
New housing units permitted in the last 12 months per 1,000 households, a supply-pressure signal.
- NAIC Homeowners Insurance Report, data for 2023
National Association of Insurance Commissioners. Read: 2023.
Average HO-3 homeowners premium by state, multiplied by 1.2 as a landlord-policy assumption.
Data: Zillow Research (ZHVI, ZORI), HUD, US Census Bureau, Freddie Mac. Every formula is on the methodology page.
Estimates from public data for a typical property. Not investment, tax or legal advice. Your property, financing and costs will differ.