The 2020 Census is right around the corner. As mandated by the U.S. Constitution, America gets just one chance each decade to count its population. The next Census in 2020 will require counting an increasingly diverse and growing population of around 330 million people in more than 140 million housing units. To get an accurate count, the Census Bureau must build an accurate address list of every housing unit, maximize self-response to the census, and efficiently follow up with those who do not respond. Census information affects everything from federal, state, and local legislative districts to the amount of grant funds available to local governments. The data is used to help determine how billions of dollars of federal funding each year is spent on infrastructure and services.
The decennial census is the largest mobilization and operation conducted in the United States and requires years of research, planning and development of methods and infrastructure to ensure an accurate and complete count. For more information, see the recently released 2020 Plan and the 2020 Census Management Review.
In preparation to the 2020 Census, the Census Bureau conducts geographic partnership programs to make the address list as up-to-date as possible and ensure complete coverage of all housing units. The Partnership Programs also help define statistical geographic area boundaries that will provide meaningful data from the 2020 Census. The following are the 2020 Census Geographic Partnership Programs:
The Boundary and Annexation Program (BAS): An ongoing survey for collecting and maintaining information about the inventory of the legal boundaries for, and the legal actions affecting the boundaries of counties and equivalent governments, incorporated places, Minor Civil Divisions, Consolidated Cities, Urban Growth Areas, Census Areas of Alaska, Hawaiian Homelands, and federally recognized legal American Indian and Alaska Native areas (including the Alaska Native Regional Corporations). This information provides an accurate identification and depiction of geographic areas for the Census Bureau to use in conducting the decennial and economic censuses and ongoing surveys such as the ACS.
The Local Update of Census Addresses (LUCA): The Local Update of Census Addresses operation provides an opportunity for tribal, federal, state, and local governments to review and improve the address lists and maps used to conduct the 2020 Census. Within this program, the Census Bureau provides address lists and maps to governmental entities for review and update.
Participant Statistical Areas Program Areas Program (PSAP): Programs that allow designated participants, following Census Bureau guidelines, to review and suggest modifications to the boundaries of block groups, census tracts, Census County Divisions, and Census Designated Places. Participants can also propose new Census Designated Places based on specific criteria. The 2020 Census PSAP includes all tribal statistical boundaries, which were administered through the TSAP in the 2010 Census, combining the two programs.
As a U.S. Census partner and an affiliate of the Alabama State Data Center (ASDC), the RPCGB can provide assistance to local governments regarding these Census partnerships and programs.
Intercensal Population Estimates: 2000 – 2015 — A series of annual estimates covering the 2000-2015 period, produced by modifying the estimates prepared previously for this period to reflect 2010 Census results. Reference date is July 1 for each year, plus a set of estimates with an April 1 date for 2000 and 2010. This information is available for several demographic characteristics and levels of geography.
- 2010-2015 estimates AL cities
- 2010-2015 estimates county
- 2000-2010 estimates county
- 2000-2010 estimates AL by race
- 2000-2010 estimates AL by age group
- 1990-2000 estimates county
- 1990-2000 estimates all states
American Community Survey Data — To access current data from multiple geographies within the state, such as census blocks, tracts, voting districts, cities, counties and school districts, please visit American Factfinder.