Layer Estimates:

Layer: County (ID:0)
Count: 3142
Extent:

XMin: -19942573.0553
YMin: 2144547.4811
XMax: -7452750.6526
YMax: 11536413.0347
Spatial Reference: 102100 (3857)

Layer: Tract (ID:1)
Count: 72745
Extent:

XMin: -19942589.5526
YMin: 2144547.4811
XMax: -7452854.3801
YMax: 11536823.1331
Spatial Reference: 102100 (3857)

Layer: Block Group (ID:2)
Count: 217178
Extent:

XMin: -19942589.5526
YMin: 2144545.1277
XMax: -7452854.3801
YMax: 11536823.1331
Spatial Reference: 102100 (3857)