Here’s where the biggest share of US apartment demand is emerging

Article originally posted on CoStar on July 22, 2026

The apartment boom of the past decade has added millions of units across the country — and revealed the metropolitan areas where renter demand has been growing fastest.

A recent CoStar analysis examined how apartment construction reshaped the industry’s inventory hierarchy, with more markets crossing major size thresholds and moving into larger “weight classes.” This analysis focuses on a different question: which markets account for the largest share of renter demand today, and how that has changed over time.

For years, a relatively small group of U.S. metropolitan areas dominated apartment leasing activity. Cities such as New York, Los Angeles, Chicago and Washington, D.C., occupied outsized positions within the industry’s hierarchy, helping determine national demand trends largely through their own performance.

That era is fading. Major cities, including Washington D.C., Seattle, Chicago, Los Angeles and San Francisco, together lost roughly 6.7 percentage points of its share of national absorption, move-ins versus move-outs, share over the past decade as demand migrated to the Sun Belt and secondary markets. The shift represents one of the most significant realignments in the geography of apartment demand in modern history.

Phoenix captured more of that migration than any other market in the country. The Arizona capital gained nearly 3 percentage points of its share of national absorption share — the largest increase among all 394 U.S. markets tracked — rising from 2% of national demand in 2017 to nearly 5% today.

Others gaining outsized shares of national apartment absorption include Austin, Texas, which nearly doubled its share of national apartment demand, climbing from 2.4% in 2017 to 4.5% in 2026. Charlotte, North Carolina, increased its share from 1.9% to 3.2%. Orlando, Florida, rose from 1.5% to 2.4%.

Charlotte now accounts for more national apartment absorption than Seattle — a reversal that would have seemed improbable a decade ago.

The pattern extends well beyond individual market success stories. Among markets where developers responded to increased demand, most subsequently gained national demand share. The relationship was not universal — some rapidly expanding multifamily markets gained little ground, and a few lost national absorption share despite adding a significant number of units to their inventory. But the broader trend held: growth in apartment inventory often translated into a greater share of national absorption.

Boston proved to be an exception, losing national absorption share despite expanding its market total to more than 300,000 apartment units. It was one of only a handful of U.S. markets where inventory growth outpaced relative demand gains. The exception underscores that scale alone does not guarantee demand leadership; employment growth, migration patterns and affordability dynamics matter as well.

Apartment demand remains concentrated. The 10 markets that generated the most absorption accounted for nearly 40% of national apartment demand over the past year, up from about 32% two years earlier. But the composition of that group has changed.

Commanding meaningful shares of apartment demand today are Dallas-Fort Worth, Houston, Austin, Atlanta, Phoenix, Charlotte, Orlando and New York. Not all followed the same path — some already held dominant positions, while others climbed rapidly into the top tier. No single market exerts the type of influence that New York achieved at various points during the pandemic era. Instead, the industry’s upper tier has become more crowded.

Florida’s dominance is particularly striking. The state claimed 11 of the 25 largest share gains nationally, a concentration that underscores how demographic migration and job growth have shifted demand southward — and apartment developers have followed.

Many of the markets now helping to shape national demand spent the past decade growing at a pace rarely seen in previous cycles. Charlotte, Orlando and Columbus, Ohio, expanded into the ranks of major apartment markets. Huntsville, Alabama, Colorado Springs, Colorado, and Sarasota, Florida, emerged as increasingly important contributors despite starting from much smaller bases. Charleston, South Carolina, while still building toward major-market scale, more than doubled its apartment absorption and increased its share of national demand.

Several of these cities would have been viewed as lesser-secondary apartment destinations just a decade ago. Today, they play a much larger role in leasing and investment activity across the country.

The apartment industry’s hierarchy has not disappeared. New York, Dallas-Fort Worth, Houston and Atlanta remain among the country’s most important apartment markets. What has changed is where demand growth occurs. The apartment boom did not eliminate the industry’s heavyweights. It created more of them.