Census Tract Data 2025. Census 2020 Data Access & Use The Census Tract boundaries are according to the 2020 Decennial Census. 18-04 on September 14, 2018 and data from the 2020 Decennial Census and three sets of 5-year tabulations of the American Community Survey (2016-2020; 2017-2021; and 2018-2022)
Geospatial Indicator Maps from www.cdph.ca.gov
The 2025 metro DDAs use ZIP Code Tabulation Area (ZCTA) boundaries from the 2020 Decennial census Explore census data with visualizations and view tutorials.
Geospatial Indicator Maps
2025 QCT data for all of the census tracts in the United States and Puerto Rico (qct_data_2025.xlsx) Data Statutorily Mandated Designation of Difficult Development Areas and Qualified Census Tracts for Section 42 of the Internal Revenue Code of 1986 (Notice, Publication Date September 21, 2023, QCTDDA2024_Notice.pdf). 2025 QCT data for all of the census tracts in the United States and Puerto Rico (qct_data_2025.xlsx) Data Statutorily Mandated Designation of Difficult Development Areas and Qualified Census Tracts for Section 42 of the Internal Revenue Code of 1986 (Notice, Publication Date September 21, 2023, QCTDDA2024_Notice.pdf). 18-04 on September 14, 2018 and data from the 2020 Decennial Census and three sets of 5-year tabulations of the American Community Survey (2016-2020; 2017-2021; and 2018-2022)
Census Geography Finding & Using U.S. Census Data Research Guides. Total number of addresses in the entity count list identified as housing units or transitory units by data in the Master Address File (MAF). Census tracts generally have a population size between 1,200 and 8,000 people, with an optimum size of 4,000 people.
Slides from Amy Glasmeier G. P. Patil ppt download. 2025 QCT data for all of the census tracts in the United States and Puerto Rico (qct_data_2025.xlsx) Data Statutorily Mandated Designation of Difficult Development Areas and Qualified Census Tracts for Section 42 of the Internal Revenue Code of 1986 (Notice, Publication Date September 21, 2023, QCTDDA2024_Notice.pdf). February 3, 2025: Metadata Updated Date: February 3, 2025: Publisher: Centers.