| + |
Unorganized congregations |
| ARC |
Alliance of Reformed Churches |
| CRC |
Christian Reformed Church in North America |
| CRCI |
Christian Reformed Church (Independent) |
| ICRC |
Independent Christian Reformed Church |
| Indep. |
Independent |
| IRC |
Independent Reformed Church |
| MC |
Ministerial credentials (indicates church membership and ecclesiastical supervision of a pastor who is not serving a church, i.e., retired, missionary, without call, or in non-pastoral work.) |
| NAPARC |
North American Presbyterian And Reformed Council |
| OCRC |
Orthodox Christian Reformed Church |
| OPC |
Orthodox Presbyterian Church |
| ORC |
Orthodox Reformed Church |
| PRC |
Protestant Reformed Churches in America |
| RCA |
Reformed Church in America |
| URC |
United Reformed Churches (in North America) |
