Marshalltown, Iowa - US Census Bureau
- Provides population, demographic, and housing information.
- http://quickfacts.census.gov/qfd/states/19/1949755.html

Topographic Map of Marshalltown
- 1:24,000 U.S.G.S. 1980. From the Perry-Castañeda Map Collection, The University of Texas at Austin. (.jpg, 1626x1644 pixels, 697K)
- http://www.lib.utexas.edu/maps/united_states/marshalltown_io_80.jpg

Marshalltown Municipal Airport - KMIW
- Aeronautical information, including location, operations, communications, runways, instrument procedures, radio frequencies and services, provided by AirNav.
- http://www.airnav.com/airport/KMIW

City of Marshalltown
- Includes application forms, business links, tourist information, links to local and area public schools, employment opportunities, on-line voter guide and maps.
- http://www.ci.marshalltown.ia.us/