Overview The Inner Sunset Flea Market takes over two blocks of the Irving Street shopping corridor, between 9th and 11th Avenues, on the second Sunday of each month from April to November, and fills them with vintage and secondhand sellers, artists and makers, community organizations, live music and a large kids' zone. Every market takes its own theme, and Sunset Mercantile says it has been voted one of the Top Ten Flea Markets in the Bay Area. The 2026 season opened with a Spring Fling in April and ran through Pride in June, Dog Days of Summer in August and A Taste of Comedy Day in September to the Big Lunch and the annual pie contest in November. Sunset Mercantile runs it. Neighbors Angie Petitt and Laura Peschke-Zingler started the company in 2014 as a pop-up where local parents could test their business ideas; it also runs the Outer Sunset Farmers Market and Mercantile, the Sunset Night Market, Secondhand Saturdays and the Cole Valley Fair, and says its events draw more than 200,000 people a year. In 2024, on the company's 10th anniversary, Mayor London Breed declared December 7 Sunset Holiday Mercantile Day in San Francisco. On site The market runs from 10 to 4. Stalls line both blocks, jewelry and clothing sellers among them, and the family activities in the kids' zone are free. Leashed dogs are welcome, and the whole street is smoke-free under the city health code. The N line and the 6, 7, 43, 44 and 66 buses all stop nearby, and street parking is free on Sundays. Audience The crowd is local. Across Sunset Mercantile's events, 51% of attendees come from the Sunset District itself, 35% from elsewhere in San Francisco and 12% from other Bay Area counties. Brand presence Sunset Mercantile sells the market in pieces: a sponsor can take the fun activity space and bring its own games, brand the food court or the music stage, put up a step-and-repeat photo wall, or attach to one of the themed days. It will also build custom add-ons, from extra booth space and a hands-on activity to draw people in, to an electric vehicle on display. Six sponsors ran on the 2026 market page, UCSF and Renewal by Andersen among them, next to Crossroads Trading, Good Wolf, ParkSmile and Luke's Local.