San Juan, PR
317,995 people · 7,987 per sq mi · 39.8 sq mi
Measured at the center point marked on the map, with the data a report uses. A report for an address adds the flood zone, elevation, nearby schools, noise sources, your commute, and what to verify.
Facts
Natural hazard risk
Insufficient Dataoverall, census tract at the city center
FEMA National Risk Index, December 2025
Storms and earthquakes
- Tornado tracks within 9 mi3 since 2000 · strongest EF1 · latest September 2019
- 5
- Tropical storm tracks within 50 mi7 at hurricane strength · strongest Category 4 · latest Maria (2017)
- 24
- Recorded earthquakes within 31 mi2 of magnitude 5 or more · largest M5.1
- 62
NOAA Storm Prediction Center, NOAA IBTrACS, USGS
Reported crime
No FBI figures for a San Juan police department. A report matches the nearest reporting agency instead.
Typical rent
No HUD Fair Market Rent loaded for this county.
Outdoor air
No modeled air values for this tract.
Disasters, Superfund, radon
- Federal disaster declarations for the county, last 20 yearsmostly hurricane (9), biological (2), severe storm (2) · latest Tropical Storm Ernesto, August 2024
- 15
- Superfund sites within 10 mi
- 1
OpenFEMA, EPA National Priorities List, EPA radon zones
Sources
- US Census Bureau American Community Survey and Gazetteer Files · December 2024
- FEMA National Risk Index · December 2025
- NOAA Storm Prediction Center · December 2025
- NOAA NCEI IBTrACS v04r01 · October 2026
- USGS ComCat · October 2026
- US EPA (SEMS via FRS)
- OpenFEMA · October 2026
- US EPA Map of Radon Zones
- CDC National Environmental Public Health Tracking Network · December 2022
- HUD USER
- FBI Crime Data Explorer · December 2025
Public data only, with no overall score, no demographic data, and no grade of the community. See the methodology. Informational, not professional, legal, insurance, or inspection advice.