Clay County Sheriff's Department
- We are committed to increasing the public safety and enhancing the quality of life for all our citizens of Clay County.
- http://www.claycogov.com/text/sheriff/index.php

Clay County Economic Development Council
- Organization for business development. Includes statistical local information, news, contacts, and resources for the area.
- http://www.clayedc.com

Archaeology
- Archaeology in Northwest Missouri. An overview of the Pre-Historic occupation along the fishing river in Clay and Ray Counties. Examines various tools and site aspects..
- http://fishingriver.com

Missouri Census Records
- Clay County, Missouri
- http://www.oseda.missouri.edu/mscdc/census/mo/basictables/mo.text/county/CLAY