This dataset provides civilian employed population estimates for individuals 16 years or older by by sex and class of worker for State of Iowa, individual Iowa counties, incorporated places (i.e., cities) and census tracts within Iowa. Population estimates are used to track demographic changes, inform resource allocation, and plan for future needs. Data is from the U.S. Census Bureau, American Community Survey, Five Year Estimates, Table B24080. The five year data are collected over a period of 60 months for all geographic areas. Estimates are more reliable for smaller areas (under 20,000 population). Values should not be aggregated across multiple variables, geographies, and years. Also, comparisons should not be made between overlapping data collection periods (e.g. 2012-2016 and 2013-2017).