San Simeon, CA Coastal Erosion Rate
Shoreline change 14.4 miles northwest of San Simeon, CA
The coast 14.4 miles northwest of San Simeon, CA 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 San Simeon, CA into one ~3.5-mile reading rather than picking a single arbitrary line to represent the area. Centered near 35.76°N, 121.33°W. Survey years: 1852-2016, method LRR, from USGS's California 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.
Where this fits nationally
3 transects feed this segment's number; 100% of them individually measured retreat. The published margin on this reading runs ±0.61 ft/yr. Taken at face value, this segment's raw -0.46 ft/yr reading would land it 318 of 1211 nationally - a number worth ignoring, since it's statistical noise rather than a real trend. Source: USGS National Shoreline Change data release (ScienceBase, DOI 10.5066/P94J0K7Z), Kratzmann 2024 / Data Report 1187. For scale: Panacea, FL, 2170 miles away, ranks 1107 of 1211 nationally for growth, 1 ft/yr. 0.4 miles away, San Simeon, CA is the nearest other measured stretch: also no significant trend.
San Simeon, CA on the source map: try the Coastal Change Hazards Portal, zoomable well past this page's ~3.5-mile grain.