|
Choose between the following options:
Annual American Community Survey (ACS) Data
The ACS replaces the "long form" of the decennial census. The ACS survey is similar to the decennial census, but is completed every year;
thus, provides annual data rather than data every 10 years. Rather than a point-in-time survey (i.e., April 1, 2000), ACS accumulates
12 months of surveys for a calendar year figure. Full implementation of ACS began in 2005; however, in order to have samples large enough
for accuracy purposes, some geographies require three or five years of monthly data collection. Thus, depending on a geography's population
size, data will represent 1) a 1-year aggregate figure, 2) a 3-year aggregate figure, and/or 3) a 5-year aggregate figure.
-
1-Year Aggregate data released for areas with at least 65,000 people (2001 to 2008).
-
3-Year Aggregate data released for areas with at least 20,000 people (2007 - 2008).
-
5-Year Aggregate data released for all geographies, including areas with fewer than 20,000 people.
2005-2009 aggregate data will be released in summer 2010 and reflect a 2009 ACS number. These data
will cover all geographies with fewer than 20,000 people (e.g., Communities, Counties, Census Tracts and Block Groups).
Important Note:
This means that by 2010, there will be two or three numbers representing a single ACS year. For example,
there will be three population figures for Cass County in 2009: a 1-year aggregate 2009 figure, a 3-year
aggregate 2009 figure (2007-2009), and a 5-year aggregate 2009 figure (2005-2009). Further information
on ACS, its methodology, and how to interpret ACS data can be accessed here.
|
