Pima County Geographic Information Systems logo

GIS Library Contents - Metadata

Census Blocks - 2020

Layer Thumbnail Map

This metadata information is subject to our disclaimer. Metadata information presented here is maintained manually. Therefore, date-sensitive fields such as date of last update may not be up-to-date. All metadata is subject to errors inherent in a manual process.

Descriptive nameCensus Blocks - 2020
File namecen2020b
Spatial domainPima County
Abstract2020 Census Block boundaries as supplied by the U.S. Census Bureau, and acquired from the Maricopa Association of Governments (MAG). Census Blocks are the smallest unit used by the Census Bureau for demographic tabulation. See more information.
Known errors/qualificationsThis is the P.L. 94-171 Redistricting Data release of this layer/data by the Census Bureau. Population and ethnicity data for selected categories has been populated by MAG.
Feature typepolygon
Feature count 16,635
Thumbnail Map cen2020b.pdf PDF file format   (3,715,431 bytes, PDF created 07/19/2022 )
ProjectionNAD83 HPGN (Parameters)
Field/value metadata Field metadata
Source organizationUS Census Bureau
Source contact
Source document or file name2020 PL94-171 data release
Source date2020
Source scale
Source formatUnknown
Second source nameMaricopa Association of Governments
Second source contact
Second source document or file name
Second source date2020
Second source scale
Second source formatGeodatabase
Date of last data update
(This date may not be current.)
Last data update bySteve Whitney
Date/time last touched - Meaning? 2022-02-15  03:44 PM - Enterprise GDB - Library input format
  2022-06-06  01:43 AM - Shapefile
  See coverage files, if any, for date.
Lineage20211221 - MAG data selected for Pima County.
On maintenance?Not required
Maintenance organizationPC ITD GIS
Maintenance description
Original conversion bySteve Whitney
Pima County ITD GIS contactSteve Whitney
Alternate Pima County ITD GIS contacte-mail address
On  Pima County Geospatial Data Portal? Yes

See Metadata Field Descriptions.
Back button GIS Library Data Layer Metadata search page.