County · code 40055
Greer CountyOklahoma
Greer County is in the panhandle of Oklahoma with its seat at Mangum. The county was created in 1860 and named after John Alexander Greer.
- Founded1860
- County seatMangum
- Named forJohn Alexander Greer
- Land area639 sq mi + 4.3 sq mi water
- Population5,491 2020 Census
Where it is
Greer 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 1860
An old deed may name a county that no longer exists, or a boundary that has since moved.
Greer County was created by Texas in 1860 from Young Territory, though it was located entirely in present Oklahoma and was not fully organized. The county was attached to and detached from several Texas counties for judicial purposes over the following decades, and was fully organized by July 1886. In 1896, the U.S. Supreme Court ruled that Greer County was not within the boundaries of Texas but under U.S. jurisdiction, making it a county in Oklahoma Territory. Greer County became a county in the state of Oklahoma in 1907 after losing territory to the creation of Beckham and Jackson counties.
- 1860Greer County created Greer created by Texas from Young Territory (Texas); not fully organized. Greer was located entirely in present Oklahoma, but Texas claimed the area based on its contention that the North Fork of Red River was the main channel of that river. Greer overlapped portions of Indian Territory and, after 2 May 1890, part of Oklahoma Territory. · Texas Laws 1859, 8th leg., reg. sess., gen., ch. 90/p. 138
- 1896Eliminated Greer eliminated from Texas when U.S. Supreme Court ruled that Greer was not within the boundaries of Texas, but was under the jurisdiction of the United States.into U.s.· "United States v. Texas," in U.S. Rpts., 162:1-91; U.S. Stat., vol. 29, ch. 155[1896]/pp. 113-114
- 1896Became part of Oklahoma Greer became a county in Oklahoma Territory following the U.S. Supreme Court ruling of 16 March 1896 that determined Greer was not within the boundaries of the state of Texas, but was under the jurisdiction of the United States.from U.s.· U.S. Stat., vol. 29, ch. 155 [1896]/ p. 113; Van Zandt, 122, 140; Morris, 123-124
- 1907Lost territory Greer lost to creation of Beckham and Jackson. Greer became a county in the state of Oklahoma. · Okla. Constitution [1907], art. 17, sec. 8; Swindler, 8:146
- 1909Lost territory Greer lost to creation of Harmon by special election held 22 May 1909. · Morris, 133; Bureau of the Census 1920, vol. 1:145; Okla. Stats. Anno. 1988, title 19, p. 14
Show all 11 changes
- 1860Greer County created Greer created by Texas from Young Territory (Texas); not fully organized. Greer was located entirely in present Oklahoma, but Texas claimed the area based on its contention that the North Fork of Red River was the main channel of that river. Greer overlapped portions of Indian Territory and, after 2 May 1890, part of Oklahoma Territory. · Texas Laws 1859, 8th leg., reg. sess., gen., ch. 90/p. 138
- 1860Changed Greer attached to Montague (Texas) "for all judicial purposes." · Texas Laws 1859, 8th leg., reg. sess., gen., ch. 87, sec. 6/p. 120
- 1866Changed Greer detached from Montague (Texas), attached to Young (Texas) "for judicial purposes." · Texas Laws 1866, 11th leg., ch. 35, sec. 17/p. 27
- 1866Changed Greer detached from Young (Texas), attached to Montague (Texas) "for judicial and other purposes." · Texas Laws 1866, 11th leg., ch. 96, sec. 2/p. 94
- 1879Changed Greer detached from Montague (Texas), attached to Wheeler (Texas) "for judicial purposes." · Texas Laws 1879, 16th leg., spec. sess., ch. 30, sec. 3/p. 29
- c. 1886Changed Greer was fully organized in the state of Texas and detached from Wheeler (Texas). · "Greer County," New Handbook of Texas, 3:326
- 1896Eliminated Greer eliminated from Texas when U.S. Supreme Court ruled that Greer was not within the boundaries of Texas, but was under the jurisdiction of the United States.into U.s.· "United States v. Texas," in U.S. Rpts., 162:1-91; U.S. Stat., vol. 29, ch. 155[1896]/pp. 113-114
- 1896Became part of Oklahoma Greer became a county in Oklahoma Territory following the U.S. Supreme Court ruling of 16 March 1896 that determined Greer was not within the boundaries of the state of Texas, but was under the jurisdiction of the United States.from U.s.· U.S. Stat., vol. 29, ch. 155 [1896]/ p. 113; Van Zandt, 122, 140; Morris, 123-124
- 1907Lost territory Greer lost to creation of Beckham and Jackson. Greer became a county in the state of Oklahoma. · Okla. Constitution [1907], art. 17, sec. 8; Swindler, 8:146
- 1909Lost territory Greer lost to creation of Harmon by special election held 22 May 1909. · Morris, 133; Bureau of the Census 1920, vol. 1:145; Okla. Stats. Anno. 1988, title 19, p. 14
- 1910Gained territory In 1910, Greer gained from Beckham. · Bureau of the Census 1920, vol. 1:145
Land and parcels
What the maps cover in Greer
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 Greer County yet. Lot lines and owners of record are kept by the assessor's office.
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Address points Missing
No public address points layer found for Greer 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
Greer 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
Who to ask before you build, dig or sell
Official county pages only. We link to them; we do not copy them, because they change.
County government
- County government
The official website of Greer County.
See your own lot on these maps
Open Greer 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 Greer County
- When was Greer County founded?
- Greer County was founded in 1860, and named after John Alexander Greer.
- What is the county seat of Greer County?
- The county seat of Greer County is Mangum.
- Is there an online parcel map for Greer County?
- Not that we have found yet. Lot lines and owners of record are kept by the assessor's office. When a public parcel map appears, it shows here.
- Has Greer County's boundary or name changed?
- Greer County was created in 1860. Since then the Atlas of Historical County Boundaries records 10 later changes, chiefly involving Montague (Tex.) County, Beckham County and U.s. County.
- Is my lot in a flood zone?
- We do not have flood maps for Greer County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby