County · code 18105
Monroe CountyIndiana
Monroe County is located in Indiana and was created on April 10, 1818, from Orange County, with its county seat in Bloomington.
- Founded1818
- County seatBloomington
- Named forJames Monroe
- Land area395 sq mi + 17 sq mi water
- Population139,718 2020 Census
- Parcels mapped24,851 checked 15 October 2026
Where it is
Monroe 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 1818 from Orange County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Monroe County was named after James Monroe. Early boundary changes involved the attachment and detachment of the Wabash New Purchase territory for administrative purposes, with parts transferred to the creation of Parke, Morgan, and Putnam counties between 1821 and 1822. In 1836, Monroe County lost territory to the creation of Brown County.
- 1818Monroe County created Monroe created from Orange. · Ind. Acts 1817, 2d sess., spec., ch. 6, sec. 1/p. 14
- 1820Monroe County created Wabash New Purchase created from Non-County Area 4; Wabash New Purchase not fully organized, concurrently attached to Monroe, Owen, and Vigo for administrative and judicial purposes. · Ind. Acts 1819, 4th sess., ch. 54/p. 95
- 1821
- 1821Gained territory Monroe gained from part of Delaware New Purchase (later Adams New Purchase) attached to Bartholomew and from part of Wabash New Purchase attached to Monroe. Monroe lost to Owen and lost to creation of Non-County Area 6. Monroe lost part of Wabash New Purchase attachment to Owen. Wabash New Purchase remained attached to Monroe for administrative and judicial purposes. · Ind. Acts 1821, 6th sess., ch. 41/p. 79
- 1822
Show all 13 changes
- 1818Monroe County created Monroe created from Orange. · Ind. Acts 1817, 2d sess., spec., ch. 6, sec. 1/p. 14
- 1820Monroe County created Wabash New Purchase created from Non-County Area 4; Wabash New Purchase not fully organized, concurrently attached to Monroe, Owen, and Vigo for administrative and judicial purposes. · Ind. Acts 1819, 4th sess., ch. 54/p. 95
- 1821
- 1821
- 1821Gained territory Monroe gained from part of Delaware New Purchase (later Adams New Purchase) attached to Bartholomew and from part of Wabash New Purchase attached to Monroe. Monroe lost to Owen and lost to creation of Non-County Area 6. Monroe lost part of Wabash New Purchase attachment to Owen. Wabash New Purchase remained attached to Monroe for administrative and judicial purposes. · Ind. Acts 1821, 6th sess., ch. 41/p. 79
- 1822
- 1822
- 1822Lost territory Monroe lost part of Wabash New Purchase attachment to creation of Putnam; remaining part of Wabash New Purchase was detached from Monroe and attached to Putnam for administrative and judicial purposes. · Ind. Acts 1821, 6th sess., ch. 36, secs. 1-2/p. 65 and ch. 61/p. 118
- 1828Gained territory Monroe gained from Adams New Purchase; mistake in description corrected 23 December 1828. · Ind. Acts 1827, 12th sess., ch. 11/p. 15
- 1828Boundary clarified Monroe boundaries were redefined, correcting mistake of 16 January 1828 (no change).no change· Ind. Acts 1828, 13th sess., ch. 8/p. 15
- 1831Gained territory Monroe gained all of Non-County Area 6; Non-County Area 6 eliminated. · Ind. Rev. Laws 1831, ch. 19, secs. 17, 39, 57, 61-62/pp. 115, 121, 126-128
- 1836Lost territory Monroe lost to creation of Brown. · Ind. Acts 1835, 20th sess., gen., ch. 19, secs. 1-2/p. 52
- 1838Changed Legislature authorized Monroe to gain from Greene, dependent on local referendum that failed (no change). · Ind. Acts 1837, 22d sess., loc., ch. 261/p. 432; Pence and Armstrong, 406
Land and parcels
What the maps cover in Monroe
Who publishes each layer, how good it is, and when we last checked.
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Parcels Good enough
Lot lines and tax-map numbers for 24,851 parcels. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
edited 22 July 2026 · checked 15 October 2026 -
Address points Official
One point per address, 74,637 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
Monroe 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
Monroe County's official site
We have found the county's site but not its offices yet; start there.
County government
- County government
The official website of Monroe County.
See your own lot on these maps
Open Monroe 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 Monroe County
- When was Monroe County founded?
- Monroe County was founded in 1818, formed from Orange County, and named after James Monroe.
- What is the county seat of Monroe County?
- The county seat of Monroe County is Bloomington.
- Is there an online parcel map for Monroe County?
- Yes. A public source publishes a parcel map of 24,851 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Monroe County's boundary or name changed?
- Monroe County was created in 1818 from Orange County. Since then the Atlas of Historical County Boundaries records 10 later changes, chiefly involving Wabash County, Owen County and Adams County.
- Is my lot in a flood zone?
- We do not have flood maps for Monroe County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby