From the Census Bureau: U.S. Census Bureau Announces the Start of First Major Field Operation for 2020 Census
Today, the U.S. Census Bureau briefed the media on the launch of address canvassing, the first major field operation of the 2020 Census. Address canvassing improves and refines the Census Bureau’s address list of households nationwide, which is necessary to deliver invitations to respond to the census. The address list plays a vital role in ensuring a complete and accurate count of everyone living in the United States.
“The Census Bureau is dedicated to ensuring that we are on track, and ready to accomplish the mission of the 2020 Census,” said Census Bureau Director Steven Dillingham. “We have made many improvements and innovations over the past decade, including better technologies for canvassing neighborhoods and developing complete and updated address listings and maps.”
The Census Bureau created new software called the Block Assessment, Research and Classification Application (BARCA). It compares satellite images of the United States over time, allowing Census Bureau employees to spot new housing developments, changes in existing homes and other housing units that did not previously exist. Reviewers also use BARCA to compare the number of housing units in current imagery with the number of addresses on file for each block.
“We were able to verify 65% of addresses using satellite imagery — a massive accomplishment for us,” said Census Bureau Geography Division Chief Deirdre Bishop during the briefing. “In 2010 we had to hire 150,000 people to verify 100% of the addresses in the field, this decade we will only have to hire about 40,000 employees around the nation to verify the remaining 35% of addresses.”