Labor Force and
Unemployment Rate for Cities and Census Designated Places
These data are updated monthly and are provided here
for December 2009. Only not
seasonally–adjusted labor force (unemployment rates) data are
developed for cities and Census Designated Places (CDP). Estimates of employment by industry are not available. See the notes below about the
limitations of these data.
Data for All County Sub-Areas:
Cities and Census Designated Places by Individual County:
Data Limitations:
A Census Designated Place (CDP) is an unincorporated area designated by the US Census Bureau for the decennial census. The CDPs shown in these reports were designated for the 2000 census. As with the cities, no boundary or census ratio changes have been made for population expansion, annexation or incorporation. For more information, see the Census Bureau's Census 2000 Geographic Terms and Concepts
Only not seasonally-adjusted labor force (unemployment rates) data are
developed for cities and CDPs. Estimates of employment by
industry are not available.
Monthly sub–county data are derived by multiplying current estimates
of county–wide employment and unemployment by the respective
employment and unemployment shares (percentages) in each sub–county
area at the time of the 2000 Census. Sub–county labor force is
then obtained by summing employment and unemployment, and the result
is divided into unemployment to calculate the unemployment rate.
Based on Each Area's 2000 Census Share of County Employment
and Unemployment*
This method assumes that the rates of change in employment and
unemployment, since 2000, are exactly the same in each sub–county area
as at the county level (i.e., that the shares are still accurate).
If this assumption is not true for a specific sub–county area,
then the estimates for that area may not be representative of the
current economic conditions. Since this assumption is untested,
caution should be employed when using these data.
About These Data:
Each month the Employment Development Department, Labor Market
Information Division releases unemployment rates and employment by
industry data for California and sub–state areas. See the
complete
release schedule for exact dates.
For the state, we release two series of data –
seasonally–adjusted and not seasonally adjusted. The greatest
detail is provided for the not seasonally adjusted series. These
are the data you should use to compare the California statewide data
with other geographic areas in the state.
See the article, "
What Is a Seasonal Adjustment?" for more information.
See the article,
Methods for Labor Force Estimates, for the unemployment rates.
Calculating Sub-county Area Labor Force Data for Historical Time Periods
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