United States Census
- Data.census.govData.census.gov is the new platform to access data and digital content from the U.S. Census Bureau. It replaces the American FactFinder website, which was retired in 2020.
- ACS Data ToolsThere are many ways to access estimates and microdata from the American Community Survey (ACS). Learn more about available data tools, along with the product type, year(s) available & data set(s), and geographies included, to help you access the information you need from the ACS.
- ACS Table IDs ExplainedEver wonder what a table ID represents? The characters may look random at first glance, but each American Community Survey (ACS) table ID is purposefully numbered to describe its content and format.
- Historical Statistics of the United StatesStatistical tables covering population, work and welfare, economic structure and performance, economic sectors, and governance and international relations. Data from as early as 1600, and as late as 2002, with the majority falling between 1790 and 1990.
- Statistical Abstract of the United StatesThe Statistical Abstract of the United States is a one-volume, comprehensive summary of statistics on the social, political, and economic organization of the United States.
- Social ExplorerCreate a personal account, or use USF guest account information: email: firstname.lastname@example.org password: guest Social Explorer provides quick and easy access to current and historical census data and demographic information. The easy-to-use web interface lets users create maps and reports to illustrate, analyze, and understand demography and social change.
- PolicyMapThousands of U.S. data indicators for demographic and socioeconomic analysis. PolicyMap data can be presented as maps, tables, charts and pre-built reports that can be incorporated into papers, presentations, blogs and websites. In addition, students can upload unlimited amounts of their own address-based data, and can share these maps with others.
- Statistical Abstract of the United States - Historical EditionsScanned copies (PDFs) of the Statistical Abstract of the United States. Includes volumes from 1878 to 2011, with some gaps in coverage.
- Census ReporterCensus Reporter is a Knight News Challenge-funded project to make it easier for journalists to write stories using information from the U.S. Census bureau. Place profiles and comparison pages provide a friendly interface for navigating data, including visualizations for a more useful first look.
- Historical Census Reports (via the US Census Bureau website)PDFs of published volumes of the Census from 1790-present.
- Published Census Volumes (via the IPUMS USA website)The Census Bureau regularly releases publishes books of tables within a few years of the enumeration of each census. These books usually contain regular data series tabulated for the entire country and usually all states, counties, and major cities. The links below lead to scans (PDFs) of published census volumes from 1790-2010.
- Census HistoryLearn about the history of the U.S. Census Bureau and the Decennial Census.
- Index of Questions Asked(1790-2010)
- American Community SurveyThe American Community Survey (ACS) is an ongoing survey that provides information on a yearly basis about the United States population.
- ACS Questionnaire ArchiveBrowse archived sample American Community Survey questionnaires in English and Spanish with instruction guides from 1996 through present.
- Why Are You Asked Specific ACS Questions?Are you curious about why you are asked questions related to a specific topic on the American Community Survey (ACS)? Every question has a required purpose and many uses to help communities.
- Census InstructionsThe "Instructions to Enumerators" provided here include the congressional acts U.S. marshalls reviewed during the early census, specially-published instructions for door-to-door census, and lastly, guides used for the limited number of personal interviews conducted during nonresponse follow-up operations.
- County and City Data Books(see also print edition at USF)
- IPUMS USAIPUMS USA collects, preserves and harmonizes U.S. census microdata and provides easy access to this data with enhanced documentation. Data includes decennial censuses from 1790 to 2010 and American Community Surveys (ACS) from 2000 to the present. This is a free resource but you must register to use it.
- IPUMS USA Online Data Analysis SystemThe IPUMS online analysis system uses high-speed tabulation software developed at UC-Berkeley's Computer-assisted Survey Methods Program.
- IPUMS NHGIS(1790-2015) The National Historical Geographic Information System (NHGIS) provides population, housing, agricultural, and economic data, along with GIS-compatible boundary files, for geographic units in the United States from 1790 to the present. This is a free resource, but you need to register and create an account in order to access data.
- Census RecordsCensus records provide data at the individual and household level. Because of a 72-year restriction on access to Census records, the most recent year of records available is 1940. The 1950 Census records will be released in 2022.
Comparison of Decennial Census and the American Community Survey (ACS)
|American Community Survey||Decennial Census|
|Frequency||Conducted every month, every year||Conducted every ten years|
|Population Surveyed||Sent to a sample of addresses (about 3.5 million) in the 50 states, District of Columbia, and Puerto Rico||Counts every person living in the 50 states, District of Columbia, and the five U.S. territories|
|Topics Covered||Asks about topics not on the 2020 Census, such as education, employment, internet access, and transportation||Asks a shorter set of questions, such as age, sex, race, Hispanic origin, and owner/renter status|
|Purpose||Provides current demographic estimates to communities every year. It also provides local and national leaders with the information they need for programs, economic development, emergency management, and understanding local issues and conditions.||Provides an official count of the population, which determines congressional representation. Also provides critical data that lawmakers and many others use to provide daily services, products, and support for communities.|
2020 Census (United States)
- 2020 Census QuestionnaireSample Copy of the 2020 Census Questionnaire.
- 2020 Census Complete Count Committee GuideProvides basic outreach information for the 2020 Census.
- 2020 Census Hard to Count MapThe goal of this map is to highlight the areas of the country that are hardest to count. Organizations can utilize this information to make sure these hard-to-count areas & populations are fully counted and to help ensure a fair and accurate census.
- Response Outreach Area Mapper (ROAM)The Response Outreach Area Mapper (ROAM) application was developed to make it easier to identify hard-to-survey areas and to provide a socioeconomic and demographic characteristic profile of these areas using American Community Survey (ACS) estimates.