County · code 18021
Clay CountyIndiana
Clay County is a county in Indiana with its seat in Brazil, formed on April 1, 1825.
- Founded1825
- County seatBrazil
- Named forHenry Clay
- Land area358 sq mi + 2.7 sq mi water
- Population26,466 2020 Census
- Parcels mapped23,406 checked 15 October 2026
Where it is
Clay on the map of Indiana
Indiana has 92 counties and county equivalents, each with its own records office. Shapes with a page are links.
History
Formed in 1825 from Owen County, Putnam County, Sullivan County and Vigo County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Clay County was created from parts of Owen, Putnam, Sullivan, and Vigo Counties. The county was named after Henry Clay.
- 1825Clay County created Clay created from Owen, Putnam, Sullivan, and Vigo. · Ind. Acts 1825, 9th sess., ch. 15/p. 17
Land and parcels
What the maps cover in Clay
Who publishes each layer, how good it is, and when we last checked.
-
Parcels Good enough
Lot lines and tax-map numbers for 23,406 parcels from Indiana Geographic Information Office (IndianaMap). Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
edited 6 October 2026 · checked 15 October 2026 -
Address points Official
One point per address, 13,941 in all from Indiana Geographic Information Office (IGIO).
edited 8 March 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
Clay 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 Clay County.
See your own lot on these maps
Open Clay 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 Clay County
- When was Clay County founded?
- Clay County was founded in 1825, formed from Owen County, Putnam County, Sullivan County and Vigo County, and named after Henry Clay.
- What is the county seat of Clay County?
- The county seat of Clay County is Brazil.
- Is there an online parcel map for Clay County?
- Yes. Indiana Geographic Information Office (IndianaMap) publishes a parcel map of 23,406 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Clay County's boundary or name changed?
- Clay County was created in 1825 from Owen County, Putnam County, Sullivan County and Vigo County. 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 Clay County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby