Coverage analysis
What 15 minutes covers in Dallas.
DFW is a polycentric metroplex with two true downtowns (Dallas and Fort Worth) and several edge cities (Plano, Frisco, Las Colinas) that function as independent retail nodes. Drive-time analysis has to account for which node anchors the isochrone, because a Dallas-centric study will badly understate Tarrant County reach.
At 15 minutes, the Dallas isochrone captures the standard trade area — a zone where trips are planned but customers are willing to cross neighborhood boundaries. Unlike a 30–80 km² in typical US metros; the range varies 3× depending on road density and barriers circle, the real road-network polygon follows Dallas's actual highway corridors, accounts for bridge and interchange chokepoints, and respects the natural and built barriers that force drivers to detour.
Best-fit categories at 15 minutes: Casual dining, specialty retail, auto service, full-service salon, pet supply. The 15-minute isochrone is the standard input for franchise disclosure documents and protected-territory negotiations.
The city-level population of 1,343,573 and a median household income of $54,747 give a sense of Dallas's economic density, but the figure that matters for site selection is the population inside the polygon — not the city as a whole. That number shifts dramatically depending on whether you're drawing from a high-density urban core or a lower-density suburban corridor. Use the tool above to set your actual candidate location, then generate the isochrone to see the real catchment.