Employment across Spokane County fell by 2,280 jobs in February and, despite a surprising decline in the number of job seekers, the unemployment rate remained at levels the county has not experienced since the mid-1980s. County-wide employment, at 212,490, was about 10,000 positions lower than it was in February 2009, according to figures released Tuesday by the Washington Employment Security Department. Between January and February, the county’s retail sector alone lost 700 positions.