Marshall County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 40,105, and was estimated to be 39,890 in 2025. The county seat and largest city is Marshalltown. The county was formed on January 13, 1846, and named after John Marshall, Chief Justice of the United States Supreme Court. Marshall County comprises the Marshalltown, Iowa Micropolitan Statistical Area. In 2010, the center of population of Iowa was located in Marshall County, near Melbourne. Collected from Wikipedia.
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Areas Located Within , 
Charts for Marshall County, IA
   Poverty Universe, Age 5-17 related for Marshall County, IA2024-01-01
   Estimate of Related Children Age 5-17 in Families in Poverty for Marshall County, IA2024-01-01
   Unemployment Rate in Marshall County, IA2025-01-01
   Net County-to-County Migration Flow (5-year estimate) for Marshall County, IA (DISCONTINUED)2020-01-01
   All-Transactions House Price Index for Marshall County, IA2025-01-01
   Population Estimate, Total, Not Hispanic or Latino, Two or More Races, Two Races Including Some Other Race (5-year estimate) in Marshall County, IA2024-01-01
   Income Inequality in Marshall County, IA2024-01-01
   90% Confidence Interval Upper Bound of Estimate of Percent of People Age 0-17 in Poverty for Marshall County, IA2024-01-01
   Rate of Preventable Hospital Admissions (5-year estimate) in Marshall County, IA (DISCONTINUED)2015-01-01
   Homeownership Rate (5-year estimate) for Marshall County, IA2024-01-01
   Equifax Subprime Credit Population for Marshall County, IA2025-10-01
   Bachelor's Degree or Higher (5-year estimate) in Marshall County, IA2024-01-01
   Combined Violent and Property Crime Offenses Known to Law Enforcement in Marshall County, IA (DISCONTINUED)2020-01-01
   Premature Death Rate for Marshall County, IA2020-01-01
   Age-Adjusted Premature Death Rate for Marshall County, IA2020-01-01
   SNAP Benefits Recipients in Marshall County, IA2023-01-01
   New Private Housing Structures Authorized by Building Permits for Marshall County, IA2024-01-01
   Number of Private Establishments for All Industries in Marshall County, IA2025-10-01
   Resident Population in Marshall County, IA2025-01-01
   Estimate of People Age 0-17 in Poverty in Marshall County, IA2024-01-01
   90% Confidence Interval Upper Bound of Estimate of People Age 0-17 in Poverty for Marshall County, IA2024-01-01
   90% Confidence Interval Lower Bound of Estimate of Related Children Age 5-17 in Families in Poverty for Marshall County, IA2024-01-01
   90% Confidence Interval Lower Bound of Estimate of Median Household Income for Marshall County, IA2024-01-01
   People 25 Years and Over Who Have Completed an Associate's Degree or Higher (5-year estimate) in Marshall County, IA2024-01-01
   Percent of Population Below the Poverty Level (5-year estimate) in Marshall County, IA2024-01-01
   90% Confidence Interval Lower Bound of Estimate of Percent of People Age 0-17 in Poverty for Marshall County, IA2024-01-01
   90% Confidence Interval Lower Bound of Estimate of Percent of Related Children Age 5-17 in Families in Poverty for Marshall County, IA2024-01-01
   Estimated Percent of People Age 0-17 in Poverty for Marshall County, IA2024-01-01
   High School Graduate or Higher (5-year estimate) in Marshall County, IA2024-01-01
   Estimated Percent of People of All Ages in Poverty for Marshall County, IA2024-01-01
   90% Confidence Interval Lower Bound of Estimate of People of All Ages in Poverty for Marshall County, IA2024-01-01
   90% Confidence Interval Upper Bound of Estimate of Median Household Income for Marshall County, IA2024-01-01
   New Patent Assignments in Marshall County, IA2022-06-01
   90% Confidence Interval Upper Bound of Estimate of People of All Ages in Poverty for Marshall County, IA2024-01-01
   Burdened Households (5-year estimate) in Marshall County, IA2024-01-01
   Poverty Universe, Age 0-17 for Marshall County, IA2024-01-01
   Poverty Universe, All Ages for Marshall County, IA2024-01-01
   White to Non-White Racial Dissimilarity (5-year estimate) Index for Marshall County, IA2024-01-01
   90% Confidence Interval Upper Bound of Estimate of Percent of People of All Ages in Poverty for Marshall County, IA2024-01-01
   90% Confidence Interval Upper Bound of Estimate of Percent of Related Children Age 5-17 in Families in Poverty for Marshall County, IA2024-01-01
News and research for Marshall County, IA
US Bureau of Labor Statistics (60) US Congressional Budget Office (16) US Census Bureau (14) Board of Governors of the Federal Reserve System (3) Federal Reserve Bank of New York (17) Federal Reserve Bank of Philadelphia (8) US Employment and Training Administration (11) The World Bank (71)
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