County · code 40095
Marshall CountyOklahoma
Marshall County is a county in Oklahoma, with its seat in Madill. It was created in 1907 from former Indian Territory.
- Founded1907
- County seatMadill
- Named forMiss Marshall
- Land area371 sq mi + 55 sq mi water
- Population15,312 2020 Census
Where it is
Marshall 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 1907
An old deed may name a county that no longer exists, or a boundary that has since moved.
Marshall County was created on November 16, 1907 from former Indian Territory and named after Miss Marshall.
- 1907Marshall County created Marshall created from former Indian Territory. · Okla. Constitution [1907], art. 17, sec. 8; Swindler, 8:149
Land and parcels
What the maps cover in Marshall
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 Marshall 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 Marshall 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
Marshall 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 Marshall County.
See your own lot on these maps
Open Marshall 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 Marshall County
- When was Marshall County founded?
- Marshall County was founded in 1907, and named after Miss Marshall.
- What is the county seat of Marshall County?
- The county seat of Marshall County is Madill.
- Is there an online parcel map for Marshall 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 Marshall County's boundary or name changed?
- Marshall County was created in 1907. The Atlas of Historical County Boundaries records no boundary change since.
- Is my lot in a flood zone?
- We do not have flood maps for Marshall County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby