The American
Community Survey
(ACS) is an
ongoing,
nationwide,
monthly survey
covering
approximately
three-million
households each
year and is now
the source for
all of the
socioeconomic
data that was
formerly
obtained from
the decennial
census. ACS data
is available for
three types of
releases
depending on
population size:
annually,
three-year
periods and
five-year
periods.
Annual ACS
data are
available for
all geographies
(e.g., U.S.,
states,
counties,
municipalities,
places) with a
population of
65,000 or more.
Three-year
period ACS
estimates are
available for
all geographies
with a
population of
20,000 or more.
Five-year
period ACS
estimates are
available for
all geographies
down to census
tracts and block
groups.