Knights of Columbus Council No. 06234
- The Clear Lake Council of St. Paul's Catholic Church. Information on membership and activities.
- http://www.ghg.net/kofc6234/

Clear Lake United Methodist Church
- Information on worship service times and styles, community outreach, Sunday school, and evangelism.
- http://www.clearlakemethodist.org/

Clear Lake Presbyterian Church
- Presbyterian Church USA. Located on El Dorado Blvd in Clear Lake City. Includes worship schedule, Alpha Course information, ministries, and map.
- http://www.clpc.org/

Clear Lake Amateur Radio Club
- Offers classes, test sessions, repeaters, public services, and a monthly newsletter.
- http://www.clarc.org/