By the data, Seattle, WA is healing you — its Neighborhood Health Index ranks healthier than 95% of US ZIP codes. Strongest: walkability (100th pct); weakest: food & retail mix (59th pct). Whole Foods Market and other spots shape the local food landscape. See the full score below — then unlock the complete wellness dossier for the deeper health picture.
For your ZIP, we count every healthy option (grocery stores, health-food shops, farmers markets, parks, gyms, and healthy fast-casual spots like CAVA or Sweetgreen) and every unhealthy option (fast food, convenience stores, dollar stores, liquor and vape shops) within walking-and-driving distance — then weight them (a full grocery store counts more than a single drive-thru; a bodega counts less than a McDonald's because it also sells real food).
Then we blend four forces that pull on your health every day, each graded against every other US ZIP: your food and retail mix (45%), your neighborhood's walkability (25%, EPA National Walkability Index), your air quality (20%, CDC fine-particle PM2.5 modeling) and your drinking water (10%, the EPA health-based violation record of the water system that actually serves your address). When a factor isn't available for your ZIP — say you're on a private well — the others rebalance, so you're never penalized for a data gap. Your result is your national percentile against ~18,000 US ZIP codes.
Built from a proprietary index of 1,000,000+ verified locations (2026), the EPA National Walkability Index, CDC air-quality modeling (2021), and EPA SDWIS drinking-water violations — tap water matched to your area through your utility's mapped service-area boundary, not just your ZIP.