What is the county seat of Morgan County?

The county seat of Morgan County is Martinsville.

Is there an online parcel map for Morgan County?

Yes. Indiana Geographic Information Office (IndianaMap) publishes a parcel map of 43,627 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.

Has Morgan County's boundary or name changed?

Morgan County was created in 1822 from Delaware County, Adams County, Wabash County and Monroe County. Since then the Atlas of Historical County Boundaries records 2 later changes, chiefly involving Hendricks County and Putnam County.

Who issues building permits in Morgan County?

The county's page on building permits: Permits / Morgan County, Indiana. Inside a city or town, ask that city first.

Is my lot in a flood zone?

We do not have flood maps for Morgan County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

County · code 18109

Morgan CountyIndiana

Morgan County is located in Indiana and has its county seat in Martinsville. It was formed on February 15, 1822.

Founded1822
County seatMartinsville
Named forDaniel Morgan
Land area404 sq mi + 5.6 sq mi water
Population71,780 2020 Census
Parcels mapped43,627 checked 15 October 2026

Open the free map Click any parcel in Morgan County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated 19 October 2026

Census outline · seat marked

History

Formed in 1822 from Delaware County, Adams County, Wabash County and Monroe County

An old deed may name a county that no longer exists, or a boundary that has since moved.

Morgan County was created from parts of the Delaware New Purchase (later the Adams New Purchase) and from the Wabash New Purchase attached to Monroe County. The county was named after Daniel Morgan. On March 11, 1861, Morgan County lost territory to Putnam County, and on June 6, 1868, it lost additional territory to Hendricks County.

Boundary changes from the Newberry Library, Atlas of Historical County Boundaries.

1822
Morgan County created Morgan created from part of Delaware New Purchase (later Adams New Purchase) and from part of Wabash New Purchase attached to Monroe.
from Delaware from Adams from Wabash from Monroe
15 February 1822 · Ind. Acts 1821, 6th sess., ch. 24, sec. 1/p. 35
1861
Lost territory Morgan lost to Putnam.
to Putnam
11 March 1861 · Ind. Acts 1861, 41st sess., reg., ch. 43/p. 98
1868
Lost territory Morgan lost to Hendricks.
to Hendricks
6 June 1868 · Pence and Armstrong, 432, 618

Land and parcels

What the maps cover in Morgan

Who publishes each layer, how good it is, and when we last checked.

Parcels Good enough

Lot lines and tax-map numbers for 43,627 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, 45,933 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

Morgan by the Census

Population

71,780 2020 Census count

Housing units

29,351 2020 Census count

Land area

404 square miles

Water area

5.6 square miles

People per sq mi

178 population ÷ land area

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.

Permits

Permits / Morgan County, Indianafrom morgancounty.in.gov
Online Building Permitfrom permitting.schneidergis.com
Installing a septic systemfrom in.gov

Zoning and code

County Ordinancesfrom library.amlegal.com

County government

County government
The official website of Morgan County.
morgancounty.in.gov

See your own lot on these maps

Open Morgan 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.

Open the free map no sign-in Pro early access

Questions

Common questions about Morgan County

When was Morgan County founded?: Morgan County was founded in 1822, formed from Delaware County, Adams County, Wabash County and Monroe County, and named after Daniel Morgan.
What is the county seat of Morgan County?: The county seat of Morgan County is Martinsville.
Is there an online parcel map for Morgan County?: Yes. Indiana Geographic Information Office (IndianaMap) publishes a parcel map of 43,627 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Morgan County's boundary or name changed?: Morgan County was created in 1822 from Delaware County, Adams County, Wabash County and Monroe County. Since then the Atlas of Historical County Boundaries records 2 later changes, chiefly involving Hendricks County and Putnam County.
Who issues building permits in Morgan County?: The county's page on building permits: Permits / Morgan County, Indiana. Inside a city or town, ask that city first.
Is my lot in a flood zone?: We do not have flood maps for Morgan County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby