National Association of Counties: Lyon County
- Elected county officials, links to demographic information and list of place names in the county.
- http://www.naco.org/Template.cfm?Section=Find_a_County&Template=/cffiles/counties/county.cfm&id=27083

National Weather Service: Lyon County, MN
- Zone forecast, statewide forecast, current conditions around the area. Statewide weather summary for past 24 hours, including precipitation, temperatures.
- http://weather.noaa.gov/cgi-bin/iwszone?Sites=:mnz072

Marshall-Lyon County Library
- Public library in Marshall, with branches in Balaton and Cottonwood. Location, phone numbers, hours.
- http://www.marshalllyonlibrary.org/

Lyon County Map
- Shows major highways, county line, some cities. Interactive.
- http://tiger.census.gov/cgi-bin/mapsurfer?infact=2&outfact=2&act=move&on=CITIES&on=majroads&on=places&on=interstate&on=statehwy&on=ushwy&tlevel=-&tvar=-&tmeth=i&mlat=44.41447&mlon=-95.84040&msym=grnp

Lyon County
- Official web site of county government. Officials, departments and services, county map.
- http://www.lyonco.org/

Lyon County MNGenWeb
- Genealogy and local history.
- http://www.rootsweb.com/~mnlyon/