Elizabeth Rasmussen Martin Memorial Library
- Contains mission statement, director's profile, reading lists, information about Friends of the Library, story time, library card application and hours.
- http://www.newhartford.lib.ia.us/

J&J Metal Spinning
- Provides in-house engineering and tooling capabilities. Includes brief company profile and production details.
- http://www.jjmetalspinning.com/

New Hartford Racing Club
- Offers motocross short track racing. Includes schedule, results, sponsors and photographs.
- http://www.newhartfordracing.com/

City-Data.com: New Hartford, Iowa
- Profiles housing, population demographics, jobs, weather and climate tables. Contains a list of area hospitals, schools, airports, radio and TV broadcast stations, charts and maps.
- http://www.city-data.com/city/New-Hartford-Iowa.html

New Hartford Elementary
- Features principal's profile, staff directory and calendar of events.
- http://jmartinek.dikenh.iowapages.org/

Wikipedia: New Hartford, Iowa
- Encyclopedia article features geography and demographics of this community in Butler County.
- http://en.wikipedia.org/wiki/New_Hartford,_Iowa