Jamaica Plain, MA

Jamaica Plain (JP) is where Boston goes to touch grass—without leaving the city. You’ve got Jamaica Pond, the Arborway, and the Arnold Arboretum nearby, plus a main-street mix of local restaurants, cafés, and small shops that keeps things lively without feeling like downtown. JP’s total population is 30,434 and the median age is 34, so it lands in that sweet spot: young enough to feel active, old enough to feel settled.

JP is also denser than it looks when you’re staring at trees. The City of Boston’s planning profile lists 12,467 people per square mile (2010), which puts it in the High density bucket on the scale we’ve been using (12,000+ / sq mi). For average individual income, the clean public-data match is per capita income—about $60,458—but that figure comes from a larger Census area that includes JP plus nearby neighborhoods, so treat it as a strong area benchmark rather than JP-only down-to-the-block precision.