Layer Estimates:

Layer: 2010 Block Groups (ID:0)
Count: 2351
Extent:

XMin: -11360353.3465704
YMin: 4438134.07738871
XMax: -10529531.8829553
YMax: 4866403.40136679
Spatial Reference: 102100 (3857)

Layer: 2020 Block Groups (ID:1)
Count: 2461
Extent:

XMin: -11360353.3465704
YMin: 4438134.07738871
XMax: -10529531.8829553
YMax: 4866403.40136679
Spatial Reference: 102100 (3857)