Some useful gazetteers for Rheinland are:
Uetrecht, E., Meyers Orts und Verkehrs-Lexikon des Deutschen Reichs (Meyer’s gazetteer and directory of the German Empire). Leipzig: Bibliographisches Institut, 1912–. (FHL book 943.E5mo; film 496640–41; fiche 6000001– 29.) This gazetteer lists places alphabetically, gives their former German province, and states whether a place has its own parish or synagogue. It also indicates the location of the vital records office.
Gemeindelexikon für das Königreich Preussen (Gazetteer for the Kingdom of Prussia). 13 vols. Berlin: Verlag des Königlichen Statistischen Landesamts, 1907–09. (FHL book 943.E5kp; film 1186701, 0806633–35.) Volumes for each Prussian province are arranged by district with an index at the end. The gazetteer is in German Gothic print. Information is given in columns and includes population figures as well as civil and ecclesiastical jurisdictions.
The Gemeindelexikon für Rheinland will identify the Lutheran and Catholic parishes for your locality of interest in the former Prussian province of Rheinland. It will also show the civil registration office. The 1885 Gemeindelexikon for Rheinland is online. It can be accessed at the following website:
To access the Gemeindelexikon für Rheinland (and all other Prussian provinces) in the Family History Library in Salt Lake City use the following call number: FHL book 943 E5kp or FHL film number 491042 . Here is a diagram showing the column headings in German and their English translations: