- National Association of Counties: Rock County, NE
- Information about the county elected officials, population, demographic data, and census facts.
- NRHP: Rock County
- Listing of historic places and buildings found in the county.
- Rock County
- Official site with information regarding county offices, officials, services, policies, events, local history, and election results.
- Rock County Genealogy Trails
- Includes genealogy and history research data about the county.
- Rock County Nebraska Genealogy
- Directory of genealogy lists for the county, with additional resource offered.
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