477 2010/2020 Census Block Converter

Easily convert 2010 to 2020 census blocks

Click here to upload your 2010 Block IDs
Instructions:
  • Download the csv template here
  • Be sure BlockCode and TechCode columns are populated
  • BlockCode should be formatted as a number (no scientific notation)
  • Save as CSV
  • Upload your list
  • Complete payment
  • You’ll receive an email with 2 KMZ files for each tech code:
    • 2020 blocks that intersect with your 2010 blocks
    • Adjacent blocks so you can identify additional blocks you may need to report
  • You will need to manually verify all perimeter blocks to ensure the new block list does not over state or understate your serving area
  • Pricing shown after list is uploaded