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DFW metro growth is widening, with outer county seats leading expansion
Decatur, a county seat near the Dallas Fort Worth area, is up 38.1% since 2020, reflecting faster housing demand beyond established suburbs.
HousingWire says Texas growth is moving past core suburbs around the Dallas Fort Worth metro and into an outer ring of county seats and surrounding towns.
The publication points to population change in the DFW-Arlington metro, citing 7,637,387 residents in the 2020 Census and an estimated 8,477,157 by July 2025, an increase of about 840,000 over five years. It also notes that between 2024 and 2025 alone, DFW added 123,557 residents, the second-largest numeric gain among U.S. metros behind Houston.
HousingWire links the shift to how the region developed historically as a network of towns around county seats, then argues the metro has grown large enough to reconnect those hubs. It adds that regional planners expect the broader area to approach nearly 9 million in early 2026.
For developers, the article says growth is increasingly happening at the edges, citing Census Bureau observations that outer-ring counties are fastest-growing in many large U.S. metros, with the pattern especially pronounced in Texas. It highlights McKinney as an example of a town that existed independently before Dallas expanded toward it, and it notes Decatur is up 38.1% since 2020.