Saint Louis City

MissouriPopulation: 298,018
69
/100
Buy
#169 of 1,000 counties
#31 in Missouri (113 counties)
Analysis by RentalCalcs ResearchIndependent data + algorithm-driven scoring
Updated October 20, 2026Sources: Zillow ZHVI, Zillow ZORI, US Census ACS, Tax Foundation

Market Snapshot

$176,514
Median Home Price
23% below national median
$1,287/mo
Median Rent
11% below national median
8.75%
Rent-to-Price Ratio
Top 5% nationally
-$89
Est. Monthly Cash Flow
With 20% down at 6.9% rate

Saint Louis City market analysis

Saint Louis City sits at a 0.875% gross rent-to-price ratio, which puts it firmly on the cash-flow side of the spectrum, at least on paper. The cap rate comes in at 5.69%, respectable for a city with a median home price of $176,514, and the affordability index of 92 signals that entry costs are genuinely low relative to most metros. The problem shows up when you layer in financing: at 6.85% on a 20% down payment, the monthly mortgage is $925, and after adding estimated expenses of $451, the model spits out negative $89 in monthly cash flow and a cash-on-cash return of -2.63%. The cap rate tells you the asset earns; the debt service tells you the current rate environment is eating that margin. Year-over-year home prices are down 0.43%, so this is not an appreciation play either, scoring only 48 on that dimension. Saint Louis City is a market caught between a genuinely attractive price-to-rent relationship and a rate environment that punishes leveraged buyers.

That profile points to a specific type of buyer: the all-cash or low-leverage operator who can actually capture the 5.69% cap rate without a mortgage compressing it into negative territory, or a value-add investor who can push rents above the current $1,287 median. At $176,514 median purchase price, the absolute dollar exposure is low enough that all-cash deals are feasible for buyers with meaningful capital, and the cash-flow score of 88 out of 100 reflects what the unlevered picture looks like. Appreciation buyers should look elsewhere; a 48 appreciation score and a slightly declining price trend indicate this is not a market pricing in growth expectations. The stability score of 50 is a flag worth taking seriously, suggesting the market carries meaningful volatility or demand fragility that a purely passive buy-and-hold investor needs to price in.

The monthly tax and insurance burden comes to $207 on a median-priced property, with an estimated annual property tax of $1,712 and annual insurance of $777. Missouri's state-average effective rate is estimated at 0.97%, which falls into the normal range and is not in itself a deal-killer, though the honest caveat here is that this is a state-average figure and actual city or township rates in Saint Louis City can differ materially. That $207 monthly carry cost is already baked into the $451 estimated expense figure, so it is not an additional surprise, but investors underwriting specific deals should pull the actual assessed value and millage rate for each parcel rather than relying on the state average.

The stability score of 50 and the slight population context of 298,018 in an independent city with no surrounding county structure are the most meaningful risk flags the data supports. Saint Louis City is an independent city in Missouri, which means its tax base, school funding, and municipal services are entirely self-contained without the suburban county cushion most cities carry. Concentration risk is real: if rental demand softens in the city, there is no suburban fringe absorbing overflow. Investors who require a vacancy buffer or who are underwriting to high occupancy assumptions should stress-test their models against the stability score. No vacancy or crime statistics are in the provided data, and none are being added here.

Comparing Saint Louis City to its neighbor set sharpens the picture. Buchanan County shows a rent-to-price ratio of only 0.579%, well below Saint Louis City's 0.875%, meaning Saint Louis City delivers meaningfully better gross yield on a relative basis despite Buchanan's similar median home price of $182,875. Butler County at $160,556 median and a 0.673% rent-to-price ratio is cheaper to enter but still trails Saint Louis City on the rent yield metric. Jefferson County carries a median price of $281,743, nearly $100,000 more than Saint Louis City, and a rent-to-price ratio of 0.623%, making it a harder pencil on cash flow at higher basis. Clinton and Maries counties have no rent data provided, so yield comparisons cannot be made. On overall score, Saint Louis City ties Buchanan at 69 and sits one point below Clinton, Butler, and Maries at 70, and two points above Jefferson at 67, meaning none of these neighbors offer a dramatic scoring advantage.

Choose Saint Louis City over its neighbors when you are an all-cash buyer or a value-add operator who wants the highest gross rent yield in the set at the lowest price point, and when you have the operational infrastructure to manage an urban, independent-city market. Pass on it if you need conventional leverage to cash-flow at current rates, or if your strategy depends on price appreciation to generate returns, because neither condition is met here.

Last analyzed October 20, 2026. Based on the latest available Zillow and Census data for Saint Louis City.

Scenario comparison

Same $1,287/mo rent assumption, 20% down, 6.85% rate. What changes is the acquisition price.
ScenarioPurchase priceMonthly cash flowCap rateCash-on-cash
75% of median
value-add or distressed
$132,385+$143/mo7.6%+5.6%
Median
typical MLS deal
$176,514-$89/mo5.7%-2.6%
125% of median
newer / premium
$220,642-$320/mo4.5%-7.6%

Price History

Median Home Price

Median Rent

Historical data from Zillow ZHVI/ZORI

Quick Investment Calculator

20%
5%50%100%

Purchase

Purchase Price$176,514
Down Payment (20%)$35,303
Loan Amount$141,211
Interest Rate6.85%

Monthly Cash Flow

Gross Rent+$1,287
Monthly P&I-$925
Est. Expenses (35%)-$451
Net Cash Flow-$89/mo
5.7%
Cap Rate (all cash)
-2.6%
Cash-on-Cash Return
8.75%
Rent-to-Price Ratio
Negative leverage: At 6.85% rates, borrowing costs exceed the 5.7% cap rate. All-cash buyers may see better returns.

* Based on county median values. 35% expenses include taxes, insurance, maintenance, vacancy, and property management. Actual results vary by property.

Score Breakdown

Overall Investment Score
69/100
69
Cash Flow(30%)
88/100

Based on 8.75% rent-to-price ratio. Higher ratios indicate stronger cash flow potential.

Appreciation(25%)
48/100

Based on -0.4% YoY price growth. Moderate growth (3-8%) scores highest.

Stability(25%)
50/100

Population data not available.

Affordability(20%)
92/100

Based on price relative to estimated local incomes.

Scores are calculated using real Zillow home value and rent data, Census population data, and economic indicators. The weighted average produces the overall investment score. Markets with missing rent data use estimated values based on regional averages.

Investment Outlook

Strengths

  • +Above-average rent-to-price ratio (8.75%)
  • +Affordable relative to local incomes
  • +Complete rent data available

Challenges

  • -Declining home values (-0.4% YoY)
  • -Negative leverage (cap rate 5.7% < mortgage rate 6.9%)

Economic Indicators

Population
298,018
Median Income
—
Data pending
Unemployment Rate
—
Data pending
Price-to-Income
—
Data pending

Who this market fits

Best for
  • +Value-add operators who can buy below median and force rent up
Skip if
  • −You can't tolerate negative leverage (cap rate below mortgage rate today)
  • −You expect appreciation to carry the deal, but prices have declined year over year

Compare to Nearby Counties

CountyVerdict
ClintonMO
70$275,256Est. pending—BuyView
ButlerMO
70$160,556$9006.73%BuyView
MariesMO
70$233,679Est. pending—BuyView
CurrentSaint Louis CityMO
69$176,514$1,2878.75%Buy
BuchananMO
69$182,875$8835.79%BuyView
JeffersonMO
67$281,743$1,4626.23%BuyView

Section 8 in Saint Louis City: payment standards by ZIP, PHA waitlist status, and voucher counts are on VoucherMatch, the same HUD dataset with the tenant demand side attached.

The Bottom Line

BuySaint Louis City offers solid investment potential with roughly break-even cash flow at typical financing.

Saint Louis City in Missouri scores 69/100, ranking #169 of 1,000 US counties (top 22%). At 20% down and current rates, a median-priced rental roughly breaks even on cash flow (8.75% gross rent-to-price ratio). The deal works on appreciation or with better terms, not on month-one cash flow.

Monthly Cash Flow
$-89/mo
Cap Rate
5.7%
Cash-on-Cash
-2.6%

Related markets

Average rent by city in Saint Louis City

Typical asking rent across each city's ZIP codes (Zillow Observed Rent Index). Open a city for rent by ZIP and bedroom count.

Frequently asked questions

The average cap rate in Saint Louis City is 5.69%, which reflects a solid cash-flow opportunity in this affordable market.

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