National Association of Counties - Profile of Nassau County
- Provides a list of elected officials, cities within the county, census details, and contact details for the county court house.
- http://www.naco.org/Template.cfm?Section=Find_a_County&Template=/cffiles/counties/county.cfm&id=36059

Nassau County
- The official home page of Nassau County.
- http://www.nassaucountyny.gov/

Nassau County Interim Finance Authority
- Provides financial oversight and help restore the county's fiscal health so that essential services can be delivered and debt obligations met. Includes chairman's message, reports, calendar of events and press releases.
- http://www.nifa.state.ny.us/

The League of Women Voters of Nassau County, New York
- An inter-league organization comprised of seven local Leagues in Nassau County. A resource for voter registration and information to assist citizens involvement in government.
- http://www.lwvofnassaucounty.org/