County · code 41055
Sherman CountyOregon
Sherman County is in Oregon and was formed in 1889 from Wasco County, with its county seat at Moro.
- Founded1889
- County seatMoro
- Named forWilliam Tecumseh Sherman
- Land area824 sq mi + 7.6 sq mi water
- Population1,870 2020 Census
Where it is
Sherman on the map of Oregon
Oregon has 36 counties and county equivalents, each with its own records office. Shapes with a page are links.
History
Formed in 1889 from Wasco County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Sherman County was created from Wasco County on February 25, 1889. The county was named after William Tecumseh Sherman.
- 1889Sherman County created Sherman created from Wasco. · Ore. Laws 1889, gen., 15th reg. sess., p. 82
- 1891Gained territory Sherman gained from Wasco. · Ore. Laws 1891, gen., 16th reg. sess., pp. 68-69
- 1927Boundary clarified Sherman redefined (no change).no change· Ore. Laws 1927, gen., 34th reg. sess., ch. 53/pp. 60-61
- 1967Boundary clarified Sherman redefined to substitute "boundary of the state" for middle of the main channel of the Columbia River. Approved by the Governor 19 June 1967, became effective 13 Sep 1967 (no change).no change· Ore. Laws 1967, 54th reg. sess., ch. 421/pp. 928-929
Land and parcels
What the maps cover in Sherman
Who publishes each layer, how good it is, and when we last checked.
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Parcels Missing
No public parcel map found for Sherman County yet. Lot lines and owners of record are kept by the county (sherman-county.com).
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Address points Official
One point per address, 1,300 in all from State of Oregon — Department of Administrative Services Geospatial Enterprise Office (GEOHub) with Oregon Department of Emergency Management 9-1-1 program.
edited 16 January 2026 · checked 13 October 2026 -
Buildings Reference
Roof outlines traced from aerial imagery from FEMA Response Geospatial Office with Oak Ridge National Laboratory (ORNL). Good for seeing what is on a lot; not accurate enough to set a fence from.
checked 18 October 2026
- Official
- from the office that keeps the record
- Good enough
- a reliable statewide or national copy
- Fallback
- a guide only; check the official record
- Missing
- nothing public found yet
People and land
Sherman by the Census
Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.
Rules and offices
Sherman County's official site
We have found the county's site but not its offices yet; start there.
County government
- County government
The official website of Sherman County.
See your own lot on these maps
Open Sherman County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.
Questions
Common questions about Sherman County
- When was Sherman County founded?
- Sherman County was founded in 1889, formed from Wasco County, and named after William Tecumseh Sherman.
- What is the county seat of Sherman County?
- The county seat of Sherman County is Moro.
- Is there an online parcel map for Sherman County?
- Not that we have found yet. Lot lines and owners of record are kept by the county assessor's office. When a public parcel map appears, it shows here.
- Has Sherman County's boundary or name changed?
- Sherman County was created in 1889 from Wasco County. Since then the Atlas of Historical County Boundaries records 1 later change, chiefly involving Wasco County.
- Is my lot in a flood zone?
- We do not have flood maps for Sherman County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby