Everything you need before you move in. Demographics, public and private schools, FBI / state crime stats, air quality, climate, and top-rated restaurants for Chevy Chase 20815. Live data from public APIs - no signup, no email required.
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Public schools: NCES Common Core of Data 2024-25. Private schools: NCES Private School Survey 2021-22 (newest released, biennial).
Air Quality
Clean Air
EPA US AQI
37
The EPA's overall Air Quality Index. 0-50 good, 51-100 moderate, 101+ starts being unhealthy for sensitive groups.
Nat'l avg: 50
Clean
PM2.5
6 µg/m³
Tiny particles from car exhaust, fires, and dust that get deep into your lungs. Lower is healthier. EPA's safe limit is 9.
Nat'l avg: 9 µg/m³
Clean
PM10
6 µg/m³
Coarser airborne particles like dust and pollen. WHO considers under 15 µg/m³ healthy.
Nat'l avg: 15 µg/m³
Elevated
Ozone
134 µg/m³
Ground-level ozone, the main ingredient in smog. Spikes on hot, sunny days.
Nat'l avg: 100 µg/m³
Low NO2
NO₂
2.1 µg/m³
Nitrogen dioxide, mostly from car exhaust. Higher near busy roads and highways.
Nat'l avg: 10 µg/m³
Low CO
Carbon Monoxide
176 µg/m³
Carbon monoxide from cars, gas heaters, and fires. Outdoor levels in residential areas usually run well below safety limits.
Nat'l avg: 4000 µg/m³
Climate (3-yr avg)
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Data sources: ZIP geocoding via Zippopotam, demographics from the U.S. Census Bureau's ACS 5-year survey (2022), air quality and climate from Open-Meteo, restaurants from Google Places (powered by Google). National averages from ACS 2022. Census numbers reflect a rolling 5-year average. Air quality reflects the most recent hourly observation. Climate averages cover the 3 most recent calendar years. Restaurant data filtered to 1,000+ reviews within 5 miles. Verify with local sources before making relocation decisions.
