Layer Estimates:

Layer: Blocks (ID:0)
Count: 267071
Extent:

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YMin: 4544927.55224886
XMax: -9427455.95030367
YMax: 5128250.64202668
Spatial Reference: 102100 (3857)

Layer: Counties (ID:1)
Count: 92
Extent:

XMin: -9814082.0593353
YMin: 4544952.76195776
XMax: -9427547.87421923
YMax: 5128257.51117614
Spatial Reference: 102100 (3857)

Layer: ZCTA (ID:2)
Count: 881
Extent:

XMin: -9814000.00853793
YMin: 4544931.83701097
XMax: -9427447.97311101
YMax: 5128258.24374189
Spatial Reference: 102100 (3857)