St. George Island, FL Coastal Erosion Rate
What USGS measures 1.9 miles north of St. George Island, FL
The coast 1.9 miles north of St. George Island, FL shows no statistically significant trend either way. USGS's transects measured a rate here, but it's smaller than the survey's own margin of error for this stretch, so calling it "eroding" or "growing" would overstate what the data actually shows.
The grain of this number
Nothing here is parcel-level. USGS's raw transects run every few hundred feet along the shore; this page averages the ones nearest St. George Island, FL into one ~3.5-mile reading rather than picking a single arbitrary line to represent the area. Centered near 29.68°N, 84.88°W. Survey years: 2001, method LRR, from USGS's Gulf of Mexico shoreline-change assessment. That's how current the data is here, real, but not a live feed, since a shoreline survey is a major undertaking, not an annual check-in.
How solid is this number
Averaging 28 separate transects produced this segment's rate, with 4% individually reading as erosion, rather than relying on any single survey line. USGS's confidence interval here is ±0.21 ft/yr. Taken at face value, this segment's raw 0.14 ft/yr reading would land it 881 of 1211 nationally - a number worth ignoring, since it's statistical noise rather than a real trend. Source: USGS Open-File Report 2004-1089. Port St. Joe, FL sits at national rank 1067 for growth (0.73 ft/yr), one reference point among the 1211 scored segments, 22 miles from here. 1.8 miles away, St. George Island, FL is the nearest other measured stretch: also no significant trend.
Not this whole stretch, just St. George Island itself: the Coastal Change Hazards Portal is USGS's own live version of this data.