Related Research Guides
- Last Updated Oct 29, 2013
Every 10 years, the United States government is required to count all of its citizens. This is called the Decenniel Census. The government not only tries to count all of us, but also gather different types of data about all of us.
2,854 views this year
- Last Updated Aug 26, 2013
A Guide to Resources at the Dartmouth College Library
2,088 views this year
School District Data
American Community Survey - Quick Links
American Community Survey (ACS) - FAQs
What is the difference between the 1-year, 3-year, and 5-year estimates?
- Mostly the available geography.
- 1-year estimate = Data for areas with populations of 65,000+
- 3-year estiimate = Data for areas with populations of 20,000+ (most counties)
- 5-year estimate = Data for all areas
Does Social Explorer contain ACS 5-year estimate data for tracts, block groups, and blocks?
- tracts = YES
- block groups = YES
- blocks = NO
What does "owner occupied" mean? What is a tract?
- Definitions of "owner occupied" and other variable and geographic terms can be found in the American FactFinder glossary.
What is the difference between ACS and Census 2000/2010 (the Decennial Census)?
- In previous Decennial Censuses, a short list of questions was sent to 100% of the population (short form questionnaire). In addition, a longer set of questions was sent to a sample of the population (long form questionnaire). This long form questionnaire contained detailed questions on such things as educational attainment. In order to provide data on the population between censuses, the American Community Survey was developed. Beginning in 2010, the American Community Survey also takes the place of the long form questionnaire. Many of the detailed variables formerly in the Decennial Censuses will now only be found in the American Community Survey data.