Coverage analysis
What 5 minutes on foot covers in San Francisco.
San Francisco occupies a 49-square-mile peninsula tip with water on three sides and steep hills throughout. Drive-time analysis here is dominated by bridge dependencies (Bay Bridge, Golden Gate, San Mateo, Dumbarton) and the BART/Caltrain transit network that often outperforms driving for cross-bay reach.
At 5 minutes on foot, the San Francisco walk-time isochrone captures the immediate pedestrian footprint — the area where pedestrian customers make routine, repeat visits without any deliberate trip planning — the true walkshed of impulse and convenience. Unlike a simple ≈ 400 m radius circle, the real pedestrian-network polygon follows San Francisco'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 5 minutes: ≈ 0.2–0.4 km² in a standard urban grid. The 5-minute isochrone is the standard input for pedestrian trade-area analysis, walkability scoring, and proximity-retail siting.
The city-level population of 873,965 and a median household income of $130,696 give a sense of San Francisco'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.