City vs city
Portland vs St. Johns, MI
St. Johns currently scores 3 points higher overall than Portland, with the largest gap in hail.
Use this comparison for relocation decisions, insurance shopping, and hazard-prioritized mitigation planning.
Hazard breakdown
Scores describe each city’s reference grid tile, not every property. A missing model is unavailable, not zero risk. Air quality uses an ingested EPA AirNow snapshot and may not reflect current conditions; other factors describe baseline exposure. The overall score blends different hazards and is not a probability of damage. Read the scoring methodology and sources.
Overall
Portland: 25/100 · St. Johns: 28/100
St. Johns is 3 points higher.
Flood
Portland: 57/100 · St. Johns: 51/100
Portland is 6 points higher.
Portland: FEMA NFHL flood zones: 6 features intersect this tile.
St. Johns: FEMA NFHL flood zones: 2 features intersect this tile.
Wind
Portland: 15/100 · St. Johns: 15/100
No gap.
Portland: Wind exposure derived from ingested design wind / climatology tiles.
St. Johns: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Portland: 25/100 · St. Johns: 25/100
No gap.
Portland: Lightning exposure derived from ingested climatology tiles.
St. Johns: Lightning exposure derived from ingested climatology tiles.
Tornado
Portland: 19/100 · St. Johns: 23/100
St. Johns is 4 points higher.
Portland: Tornado risk derived from NOAA SPC historical reports.
St. Johns: Tornado risk derived from NOAA SPC historical reports.
Hail
Portland: 5/100 · St. Johns: 20/100
St. Johns is 15 points higher.
Portland: Hail risk derived from NOAA SPC historical reports.
St. Johns: Hail risk derived from NOAA SPC historical reports.
Storm surge
Portland: Unavailable · St. Johns: Unavailable
A score difference cannot be calculated without both sources.
Portland: Storm surge model is not available for this location yet.
St. Johns: Storm surge model is not available for this location yet.
Wildfire
Portland: 24/100 · St. Johns: 34/100
St. Johns is 10 points higher.
Portland: Wildfire exposure derived from ingested fire potential tiles.
St. Johns: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Portland: 30/100 · St. Johns: 30/100
No gap.
Portland: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
St. Johns: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.