County · code 40129
Roger Mills CountyOklahoma
Roger Mills County is a county in Oklahoma, on the border with Texas, founded in 1892, with its seat at Cheyenne.
- Founded1892
- County seatCheyenne
- Named forRoger Q. Mills
- Land area1,141 sq mi + 5.3 sq mi water
- Population3,442 2020 Census
- Parcels mapped6,865 checked 14 October 2026
Where it is
Roger Mills on the map of Oklahoma
Oklahoma has 77 counties and county equivalents, each with its own records office. Shapes with a page are links.
History
Founded in 1892
An old deed may name a county that no longer exists, or a boundary that has since moved.
Roger Mills County was formed in 1892, and named after Roger Q. Mills. Cheyenne is the county seat.
- 1891Roger Mills County created County F, which became Roger Mills, was created from non-county area in Oklahoma Territory by proclamation of the U. S. Asst. Secretary of the Interior.from U. S.· "Will Open," Weekly Oklahoma State Capital [newspaper], 25 July 1891; Morris, 119-120; Morris, Goins, and McReynolds, map 54
- 1901Gained territory Roger Mills gained a small non-county area in Oklahoma Territory (part of the Kiowa, Comanche, and Apache Indian Reservation). · "President's Proclamation, The Boundary Lines," The Daily Oklahoman [newspaper], 9 July 1901; Morris, 124
- 1907Gained territory Roger Mills gained part of Day (Okla. Terr., extinct), lost to creation of Beckham; Day eliminated. Roger Mills came a county in the state of Oklahoma.from Dayfrom Beckham· Okla. Constitution [1907], art. 17, sec. 8; Swindler, 8:153
Land and parcels
What the maps cover in Roger Mills
Who publishes each layer, how good it is, and when we last checked.
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Parcels Official
Lot lines and tax-map numbers for 6,865 parcels from Roger Mills County. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
checked 14 October 2026 -
Address points Missing
No public address points layer found for Roger Mills County yet.
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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
Roger Mills 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
Roger Mills 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 Roger Mills County.
See your own lot on these maps
Open Roger Mills 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 Roger Mills County
- When was Roger Mills County founded?
- Roger Mills County was founded in 1892, and named after Roger Q. Mills.
- What is the county seat of Roger Mills County?
- The county seat of Roger Mills County is Cheyenne.
- Is there an online parcel map for Roger Mills County?
- Yes. Roger Mills County publishes a parcel map of 6,865 parcels, rated official here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Roger Mills County's boundary or name changed?
- Roger Mills County was created in 1891. Since then the Atlas of Historical County Boundaries records 2 later changes, chiefly involving Beckham County and Day County.
- Is my lot in a flood zone?
- We do not have flood maps for Roger Mills County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby