| Monitor, Oregon | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | USA Oregon#USA |
| Pushpin Map Caption: | Location within the state of Oregon |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Oregon |
| Subdivision Type2: | County |
| Subdivision Name2: | Marion |
| Unit Pref: | Imperial |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Timezone: | Pacific (PST) |
| Utc Offset: | -8 |
| Timezone Dst: | PDT |
| Utc Offset Dst: | -7 |
| Elevation Ft: | 177 |
| Coordinates: | 45.1017°N -122.7506°W |
| Postal Code Type: | ZIP codes |
| Postal Code: | 97071 and 97362 |
| Area Code: | 503 and 971 |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1163155 |
Monitor, Oregon is an unincorporated community in Marion County, Oregon, United States It is about 3miles northeast of the city of Mt. Angel, on Butte Creek in the Willamette Valley. It is part of the Salem Metropolitan Statistical Area.Oregon Geographic Names (OGN) states that a local story about the possible origin of the name "Monitor" is that it is derived from a type of flour mill, the Monitor mill, in use in the early days of the community. In 1990, however, a descendant of one of the owners of the mill told OGNs compiler that the mill was named after the Civil War ironclad warship the USS Monitor. Furthermore, the community of Monitor did not exist until 1869, when the post office was established, and this was apparently the first use of the name for the locality. Thus, it is more likely the community was named after the ship.
Monitor is surrounded by farmland. Each spring, a tulip festival is held at the Wooden Shoe Tulip Farm about one mile north of the town center, across Butte Creek in Clackamas County.
Monitor shares its ZIP codes with the nearby cities of Woodburn (97071) and Mt. Angel (97362).