| Name | Location |
| Alton Presbyterian Church | Alton |
| Alton Reformed Church | Alton |
| American Lutheran Church | Hawarden South |
| American Reformed Church | Orange City |
| American Reformed Church | Hull |
| Bethel Christian Reformed Church | Sioux Center |
| Calvary Christian Reformed Church | Orange City |
| Calvin Christian Reformed Church | Rock Valley |
| Carmel Church | Hull |
| Central Reformed Church | Sioux Center |
| Christ Community Church | Sioux Center |
| Christian Reformed Church | Ireton |
| Christian Reformed Church | Hospers |
| Covenant Christian Reformed Church | Sioux Center |
| Dover Avenue Alliance Church | Orange City |
| Faith Christian Reformed Church | Sioux Center |
| Faith Lutheran Church | Alton |
| Faith Reformed Church | Rock Valley |
| First Baptist Church | Sioux Center |
| First Christian Reformed Church | Sioux Center |
| First Christian Reformed Church | Rock Valley |
| First Christian Reformed Church | Orange City |
| First Christian Reformed Church | Hull |
| First Reformed Church | Sioux Center |
| First Reformed Church | Rock Valley |
| First Reformed Church | Orange City |
| First Reformed Church | Maurice |
| First Reformed Church | Ireton |
| First Reformed Church | Hull |
| First Reformed Church | Hospers |
| First Reformed Church | Boyden |
| Grace Community Church | Rock Valley |
| Hawarden Community Church | Hawarden North |
| Hawarden United Methodist Church | Hawarden North |
| Heritage Netherlands Reformed Church | Hull |
| Hope Christian Reformed Church | Hull |
| Hope Lutheran Church | Sioux Center |
| Immanuel Christian Reformed Church | Orange City |
| Lebanon Church | Lebanon |
| Methodist Church | Ireton |
| Middleburg Free Grace Reformed Church | Orange City |
| Netherland Reformed Christian Church | Rock Valley |
| Netherland Reformed Church | Rock Valley |
| Netherlands Reformed Church | Sioux Center |
| New Hope Evangelical Free Church | Orange City |
| New Life Reformed Church | Sioux Center |
| Newkirk Reformed Church | Hospers |
| Our Saviors Lutheran Church | Rock Valley |
| Peace Church | Lebanon |
| Pioneer United Methodist Church | Rock Valley |
| Presbyterian Church | Hospers |
| Protestant Reformed Church | Hull |
| Redeemer Alliance Reformed Church | Alton |
| Reformed Church in America | Alton |
| Saint Anthonys Church | Hospers |
| Saint Johns Church | Ireton |
| Saint Johns Lutheran Church | Ireton |
| Saint Johns Lutheran Church | Boyden |
| Saint Joseph Church | Granville East |
| Saint Marys Catholic Church | Rock Valley |
| Saint Marys Catholic Church | Hawarden South |
| Saint Marys Church | Alton |
| Saint Paul Church | Boyden |
| Saint Pauls Lutheran Church | Ireton |
| Sheldon Church of the Brethren | Matlock |
| Trinity Christian Reformed Church | Rock Valley |
| Trinity Lutheran Church | Hawarden South |
| Trinity Reformed Church | Orange City |
| United Presbyterian Church | Boyden |
