Parish · code 22031
De Soto ParishLouisiana
De Soto Parish is a parish in Louisiana with its seat in Mansfield. It was established on April 1, 1843, and covers 876.4 square miles.
- Founded1843
- County seatMansfield
- Named forMarcel DeSoto
- Land area876 sq mi + 18 sq mi water
- Population26,812 2020 Census
- Parcels mapped34,413 checked 15 October 2026
Where it is
De Soto on the map of Louisiana
Louisiana has 64 counties and county equivalents, each with its own records office. Shapes with a page are links.
History
Formed in 1843 from Caddo Parish, Natchitoches Parish and Sabine Parish
An old deed may name a county that no longer exists, or a boundary that has since moved.
De Soto Parish was created on April 1, 1843, from Caddo, Natchitoches, and Sabine parishes. In 1845, De Soto Parish gained territory from Caddo Parish. In 1871, De Soto Parish lost territory to the creation of Red River Parish.
- 1843De Soto Parish created Desoto created from Caddo, Natchitoches and Sabine. · La. Acts 1843, 16th Leg., 1st sess., pp. 52-54
- 1845Gained territory Desoto gained from Caddo. · La. Acts 1845, 17th Leg., 1st sess., pp. 77-78
- 1871Lost territory Desoto lost to creation of Red River. · La. Acts 1871, 2nd Leg., 1st sess., pp. 86-88
Land and parcels
What the maps cover in De Soto
Who publishes each layer, how good it is, and when we last checked.
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Parcels Fallback
Lot lines and tax-map numbers for 34,413 parcels from De Soto Parish. Drawn for tax purposes: usually within a few feet of a survey, but not a survey. This copy is a fallback, not the county's own: use it as a guide and check the official record.
edited 17 May 2022 · checked 15 October 2026 -
Address points Missing
No public address points layer found for De Soto Parish 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
De Soto 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.
Inside a city or town, permits usually come from that city rather than the county.
Zoning and code
County government
- County government
The official website of De Soto Parish.
See your own lot on these maps
Open De Soto Parish 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 De Soto Parish
- When was De Soto Parish founded?
- De Soto Parish was founded in 1843, formed from Caddo Parish, Natchitoches Parish and Sabine Parish, and named after Marcel DeSoto.
- What is the county seat of De Soto Parish?
- The county seat of De Soto Parish is Mansfield.
- Is there an online parcel map for De Soto Parish?
- Yes. De Soto Parish publishes a parcel map of 34,413 parcels, rated fallback here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has De Soto Parish's boundary or name changed?
- De Soto Parish was created in 1843 from Caddo Parish, Natchitoches Parish and Sabine Parish. Since then the Atlas of Historical County Boundaries records 2 later changes, chiefly involving Caddo Parish and Red River Parish.
- Who issues building permits in De Soto Parish?
- The county's page on building permits: Online Permits. Inside a city or town, ask that city first.
- Is my lot in a flood zone?
- We do not have flood maps for De Soto Parish yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby