Boston Ranks Among the Nation’s Best Cities for Composting in 2026

When it comes to turning food scraps and yard waste into something useful, Boston is proving it knows how to get it done. The city just landed fourth place on LawnStarter’s 2026 list of the Top Cities for Composting, out of the 500 largest cities in the U.S.

The study looked at where cities are making the biggest push to recycle organic waste — things like grass clippings, leaves, and food scraps — and transform them into what composters affectionately call “black gold.” The rankings were released ahead of this year’s COMPOST2026 conference, which kicks off February 2 in Sacramento and brings together thousands of industry leaders who live and breathe this stuff.

Boston stood out nationally in several key areas. It ranked first in the nation for municipal composting access, meaning residents have more options through city programs than almost anywhere else. Massachusetts’ state policies also helped push Boston up the list; those policies came in at number one overall. And if you’ve ever noticed the number of community gardens tucked into Boston’s neighborhoods, that’s no coincidence either — the city placed fourth for community gardens per square mile.

Compared to its neighbors, Boston is leading the pack. Cambridge came in at 12th place, while Somerville landed at 95th. The rest of the field drops off quickly, with Newton ranked 134th, Worcester 135th, Springfield 140th, Brockton 155th, and Lowell 160th.

LawnStarter’s analysis considered 11 different factors, from public compost services and private haulers to average yard size and local compost‑related policies. The goal was to find which cities are truly embracing a zero‑waste mindset.

The company also points out why composting matters far beyond cleaner trash bins. Food and yard waste rotting in landfills creates methane, a greenhouse gas 84 times more potent than carbon dioxide in the short term, according to Marianne Krasny, a professor at Cornell University and director of the school’s Civic Ecology Lab. Composting that material instead helps cut methane emissions — and grows healthier soil in the process.

So while composting might still feel complicated to some residents, the numbers show that Boston is well ahead of the curve. With strong state support, accessible compost drop‑off programs, and a growing culture of community gardening, the city’s efforts are turning kitchen scraps into climate action.

Read more from LawnStarter’s full rankings here.