Finding an affiliate record.
Select CiviCRM from the left menu.
Simple Contact Search
Enter the affiliate county or region. Select the appropriate type. Click Search.
Select the Contact type in the Basic section. In Custom Fields>Local Affiliates, select the status of the affiliate. Click Search. You will get a list of all affiliates with the selected status. If you do not select an affiliate status, you will get all affiliates. Find the record you want to change, and click “Edit” on the right side.
See also the Volunteers article.
County Web Pages
The guidelines are here.