Facts about Marshalltown, Iowa
Marshalltown is a city in, and the county seat of, Marshall County, Iowa, United States. The population was 27,552 in the 2010 census, compared to 26,009 in 2000.
Geography
According to the United States Census Bureau, the city has a total area of 19.31 square miles (50.01 km²), of which 19.28 square miles (49.93 km²) is land and 0.03 square miles (0.08 km²) is water. Neighboring counties include Hardin and Grundy to the north, Tama County to the east, Jasper to the south, and Story County to the west.
Serving Marshalltown, Iowa

Bio-One services all types of trauma, distressed property, and biohazard scenes in communities throughout the Des Moines Area. We partner with local authorities, communities, emergency services personnel, victim services groups, hoarding task forces, apartment complexes, insurance companies and others to provide the most efficient and superior service possible.
We are your crime scene cleaners dedicated to assisting law enforcement, public service agencies and property owners/managers in restoring property that has been contaminated as a result of crime, disaster or misuse.
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- We are Licensed, Bonded, and Insured.
- We maintain strict adherence to OSHA rules and regulations to ensure the safety of our workers, the public, and of you and your family.
- We are proud to have a great working relationship with the Police, Fire, and most Insurance Agencies.