The newest monthly unemployment rate announced today – rose from 7.6% in January to 8.1% in February.
California announced 10.1% unemployment last week.
Unemployment rates are very high — certain industries are seeing unemployment rates of up to 20% –
Information on Great Depression unemployment is in this blog. It looks like the US is edging into the range of depression-level unemployment in some industry sectors.
Wikipedia has a good section that talks about unemployment and unemployment rates in general.