Vacancy is the silent killer of rental returns. Every month a unit sits empty, you lose income while still paying the mortgage, taxes, and insurance. These 25 cities have the lowest vacancy rates in the country, signaling strong tenant demand and reliable income streams.
These 25 cities represent the lowest markets based on vacancy. Meridian, ID leads the ranking with 3.5% vacancy at a $485K median price. Even Naperville, IL at #25 shows 4.2% — a solid metric.
Across this ranking, the average cap rate is 2.73% (vs 3.81% nationally), average prices are $483K (vs $333K nationally), and average rents are $1,868/mo.
Geographic distribution: the West (11 cities), the Midwest (6 cities), the Northeast (6 cities), the South (2 cities). The ranking is geographically diversified, giving investors multiple regional options.
Cap rate gets all the attention because it appears on every spreadsheet. Vacancy hides in the assumptions and quietly determines whether a deal actually performs. A 5.5% cap rate at 4% vacancy can outperform an 8% cap rate at 12% vacancy in any year where the high-cap property loses a tenant — because vacancy doesn't just cost rent, it triggers turnover expenses (paint, cleaning, marketing, screening) that compound the gap. The cities on this list have effective rent-collection rates that hold up to lender stress tests and tenant turnover cycles. That's a more durable foundation than headline cap rate alone.
Consider a $250,000 property renting for $1,800/mo over a 5-year hold:
That gap is the price of soft tenant demand. It shows up as compressed cap rate, weaker DSCR for refinancing, and a more fragile deal during any rate or local-economy shock.
The cities on this list rank low not by accident. Three structural sources tend to produce sustained sub-5% vacancy:
The cities that combine all three are where low vacancy is structural rather than cyclical — meaning the underwriting advantage holds across market cycles, not just during the current expansion.
A low-vacancy market lets you underwrite with a 4% vacancy assumption rather than the 7–8% standard. On the same $250,000 property at $1,800/mo, that's about $864/yr more NOI (3 percentage points of $28,800 annual rent), which directly increases the calculated cap rate by 0.35 percentage points. Lenders also notice — DSCR loans on properties in low-vacancy markets often qualify for slightly better terms because the underwritten income is more credible.
Use the vacancy loss calculator to model the bottom-line impact of different vacancy assumptions on a specific deal before relying on this list as an underwriting input.
These 25 cities rank highest on vacancy across our dataset of 775+ markets. Use this ranking as a screening tool — identify 3-5 markets that match your investment criteria, then dig deeper into each city's page for interactive calculators, detailed analysis, and deal criteria specific to that market.
Next steps: Click any city above to see its full analysis page with interactive cap rate and cash-on-cash calculators pre-filled with local data. Browse our full markets index, or explore the interactive cap rate map to visualize these markets geographically.
For a comprehensive market selection framework, read our guide on how to analyze a rental property in 15 minutes.