Wikipedia: Marshall County, Iowa
- Encyclopedia article covers geography, demographics and links to localities. With maps.
- http://en.wikipedia.org/wiki/Marshall_County,_Iowa

Marshall County Landfill
- Serving residents and businesses. Includes information about disposal services, rates, bans, calendar contest, hours and directions.
- http://www.marshallcountylandfill.org/

City-Data.com: Marshall County, Iowa
- Profiles population demographics, jobs, housing, agriculture and crime statistics. Contains a list of recreational areas, churches, cemeteries, post offices, charts, graphs and maps.
- http://www.city-data.com/county/Marshall_County-IA.html

Marshall County, Iowa - US Census Bureau
- Provides population, demographic, and housing information.
- http://quickfacts.census.gov/qfd/states/19/19127.html

Iowa State University Extension - Marshall County
- Offers agricultural, business, family and 4-H programs and resources. Includes staff directory, news, events, hours and directions. Located in Marshalltown.
- http://www.extension.iastate.edu/marshall/

Marshall County Arts and Culture Alliance
- Connects individuals to arts and culture by supporting, promoting and enriching existing opportunities and seeking new possibilities. Includes FAQs, current events, sponsors, artists' profiles and county offerings.
- http://www.artsandculturealliance.org/

Marshall County
- Official county government site.
- http://www.co.marshall.ia.us/