The following table lists the largest earthquakes in the United States on record, according to rank, magnitude, date, and location. The largest earthquake to hit the U.S. was on March 28, 1964,? California Kern County, California People QuickFactsKern CountyCaliforniaPopulation, 2005 estimate 756,82536,132,147Population, percent change, April 1, 2000 to July 1, 2005 14.4%6.7%? Kern county california dp 4 profile of selected housing characteristics SubjectNumberPercent Total housing units231,564100.0UNITS IN STRUCTURE1-unit, detached156,35867.51-unit,? Kern county california dp 2 profile of selected social characteristics SubjectNumberPercent SCHOOL ENROLLMENTPopulation 3 years and over enrolled in school205,960100.0Nursery school,? Kern county california dp 3 profile of selected economic characteristics SubjectNumberPercent EMPLOYMENT STATUSPopulation 16 years and over473,552100.0In labor force267,60356.?