When was Randolph County founded?

Randolph County was founded in 1818, formed from Wayne County, and named after Randolph County, North Carolina.

What is the county seat of Randolph County?

The county seat of Randolph County is Winchester.

Is there an online parcel map for Randolph County?

Yes. Indiana Geographic Information Office (IndianaMap) publishes a parcel map of 18,636 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.

Has Randolph County's boundary or name changed?

Randolph County was created in 1818 from Wayne County. Since then the Atlas of Historical County Boundaries records 11 later changes, chiefly involving Adams County, Delaware County and Jay County.

Is my lot in a flood zone?

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

County · code 18135

Randolph CountyIndiana

Randolph County is a county in Indiana, formed in 1818 from Wayne County, with its seat in Winchester. The county was named after Randolph County.

Founded1818
County seatWinchester
Named forRandolph County, North Carolina
Land area452 sq mi + 0.9 sq mi water
Population24,502 2020 Census
Parcels mapped18,636 checked 15 October 2026

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

Updated 19 October 2026

Census outline · seat marked

History

Formed in 1818 from Wayne County

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

Randolph County was created from Wayne County on August 10, 1818. From 1820 onward, the county gained and lost territory as new counties were organized from the Delaware New Purchase, which later became Adams County: Adams, Jay, and Wells counties were created from this territory and fully organized by 1837, after which they were detached from Randolph County.

Boundary changes from the Newberry Library, Atlas of Historical County Boundaries; the 5 that matter most are shown first.

1818
Randolph County created Randolph created from Wayne.
from Wayne
10 August 1818 · Ind. Acts 1817, 2d sess., spec., ch. 8, secs. 1-2/p. 18
1820
Gained territory Randolph gained from Non-County Area 4. Delaware New Purchase (later Adams New Purchase) created from Non-County Area 4; Delaware New Purchase not fully organized, concurrently attached to Randolph and six other counties for administrative and judicial purposes.
from Delaware from Adams
20 January 1820 · Ind. Acts 1819, 4th sess., ch. 54/p. 95
1820
Gained territory Randolph gained from Delaware New Purchase (later Adams New Purchase).
from Delaware from Adams
23 December 1820 · Ind. Acts 1820, 5th sess., ch. 50/p. 117
1824
Exchanged territory Randolph exchanged with Delaware New Purchase (later Adams New Purchase).
with Delaware with Adams
31 January 1824 · Ind. Rev. Laws 1824, ch. 17, secs. 8, 15, 17-19, 39, 48, 51/pp. 92-109 and ch. 21/p. 115
1827
Lost territory Randolph lost part of Delaware New Purchase (later Adams New Purchase) attachment to Madison.
to Delaware to Adams to Madison
26 January 1827 · Ind. Acts 1826, 11th sess., ch. 91/p. 84

Show all 13 changes (8 more)

1818
Randolph County created Randolph created from Wayne.
from Wayne
10 August 1818 · Ind. Acts 1817, 2d sess., spec., ch. 8, secs. 1-2/p. 18
1820
Gained territory Randolph gained from Non-County Area 4. Delaware New Purchase (later Adams New Purchase) created from Non-County Area 4; Delaware New Purchase not fully organized, concurrently attached to Randolph and six other counties for administrative and judicial purposes.
from Delaware from Adams
20 January 1820 · Ind. Acts 1819, 4th sess., ch. 54/p. 95
1820
Gained territory Randolph gained from Delaware New Purchase (later Adams New Purchase).
from Delaware from Adams
23 December 1820 · Ind. Acts 1820, 5th sess., ch. 50/p. 117
1821
Changed Delaware New Purchase (later Adams New Purchase) was detached from concurrent jurisdiction of Randolph and six other counties and then attached to Bartholomew for administrative and judicial purposes.
Delaware Adams Bartholomew
12 February 1821 · Ind. Acts 1820, 5th sess., ch. 31, secs. 1-2, 8/pp. 79-80, 82 and ch. 32/p. 83
1824
Exchanged territory Randolph exchanged with Delaware New Purchase (later Adams New Purchase).
with Delaware with Adams
31 January 1824 · Ind. Rev. Laws 1824, ch. 17, secs. 8, 15, 17-19, 39, 48, 51/pp. 92-109 and ch. 21/p. 115
1824
Changed Part of Delaware New Purchase (later Adams New Purchase) was attached to Randolph for administrative and judicial purposes.
Delaware Adams
1 April 1824 · Ind. Rev. Laws 1824, ch. 18, secs. 1, 8/pp. 109-110
1827
Lost territory Randolph lost part of Delaware New Purchase (later Adams New Purchase) attachment to Madison.
to Delaware to Adams to Madison
26 January 1827 · Ind. Acts 1826, 11th sess., ch. 91/p. 84
1827
Lost territory Randolph lost part of Delaware New Purchase attachment to creation of Delaware; Delaware New Purchase renamed Adams New Purchase.
to Delaware to Adams
1 April 1827 · Ind. Acts 1826, 11th sess., ch. 10, secs. 1-2, 7/pp. 12-13
1828
Changed Part of Adams New Purchase was detached from Randolph and attached to Delaware for administrative and judicial purposes.
Adams Delaware
24 January 1828 · Ind. Acts 1827, 12th sess., ch. 10/p. 13
1831
Boundary clarified Boundaries of that part of Adams New Purchase attached to Randolph were redefined (no change).
with Adamsno change
1 April 1831 · Ind. Acts 1830, 15th sess., spec., ch. 12, secs. 1-2, 7-8/pp. 16-18
1835
Lost territory Randolph lost Adams New Purchase attachment to creation of Adams, Jay, and Wells; Adams, Jay, and Wells not fully organized, parts attached to Randolph for administrative and judicial purposes.
to Adams to Jay to Wells
7 February 1835 · Ind. Acts 1834, 19th sess., gen., ch. 25, secs. 1-3/p. 44
1836
Changed Adams and Jay fully organized, detached from Randolph.
Adams Jay
1 March 1836 · Ind. Acts 1835, 20th sess., gen., ch. 14, 15/pp. 46, 47
1837
Changed Wells fully organized, detached from Randolph.
Wells
1 May 1837 · Ind. Acts 1836, 21st sess., gen., ch. 6/p. 59

Land and parcels

What the maps cover in Randolph

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

Parcels Good enough

Lot lines and tax-map numbers for 18,636 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, 12,918 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

Randolph by the Census

Population

24,502 2020 Census count

Housing units

11,394 2020 Census count

Land area

452 square miles

Water area

0.9 square miles

People per sq mi

54 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

Randolph 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 Randolph County.
in.gov

See your own lot on these maps

Open Randolph 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 Randolph County

When was Randolph County founded?: Randolph County was founded in 1818, formed from Wayne County, and named after Randolph County, North Carolina.
What is the county seat of Randolph County?: The county seat of Randolph County is Winchester.
Is there an online parcel map for Randolph County?: Yes. Indiana Geographic Information Office (IndianaMap) publishes a parcel map of 18,636 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Randolph County's boundary or name changed?: Randolph County was created in 1818 from Wayne County. Since then the Atlas of Historical County Boundaries records 11 later changes, chiefly involving Adams County, Delaware County and Jay County.
Is my lot in a flood zone?: We do not have flood maps for Randolph County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby