Coverage analysis
What 45 minutes on foot covers in Austin.
Austin's drive-time map is shaped by the Colorado River, a single congested loop highway (MoPac/I-35), and explosive northward sprawl into Williamson County. A 15-minute radius from downtown looks tiny on paper but routinely fails to capture the actual catchment because of bridge bottlenecks.
At 45 minutes on foot, the Austin walk-time isochrone captures the urban mobility boundary — a wider pedestrian catchment used for destination walking, accessibility auditing, and urban mobility analysis. Unlike a simple ≈ 3.5 km radius circle, the real pedestrian-network polygon follows Austin's actual street grid, accounts for crossings, parks, and dedicated walk paths, and contracts sharply around freeways, rail corridors, and waterways that break pedestrian continuity.
Walk-shed area at 45 minutes: ≈ 7–15 km². The 45-minute isochrone is the standard input for urban accessibility auditing and transit-gap identification.
The city-level population of 974,447 and a median household income of $86,556 give a sense of Austin's density, but the figure that matters for walkable-retail siting is the population inside the pedestrian polygon — not the city as a whole. That number shifts dramatically depending on whether you're anchored in a high-density urban core or a lower-density neighbourhood where blocks are long and crossings are scarce. Use the tool above to set your actual candidate address, then generate the isochrone to see the real walk shed.