Unaffiliated churches typically refrain from participating in Associations, Fellowships, and other intra-church organizations. Often, churches identifying as such will only support missionaries sent from their local churches, not through mission boards or clearinghouses. As with any independent church, however, the extent of what this identifier entails for each church varies from church to church.
Many Unaffiliated churches tend to also hold to Landmark doctrine, though not all do. Those churches that choose not to affiliate themselves with parachurch or intra-church organizations will often fellowship together and support each other’s missionaries.
If you’re interested in learning more about Unaffiliated churches, you can look through the various churches listed with that tag and contact them to inquire. One well-known church is Rodgers Baptist Church in Garland, Texas. If you contact them, please let them know that you learned about their church on KJV Churches. There are many other churches that you can investigate also.