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County · code 18047

Franklin CountyIndiana

Franklin County is located in Indiana with its county seat in Brookville. The county was established in 1811 from parts of Clark and Dearborn counties and is named after Benjamin Franklin.

  • Founded1811
  • County seatBrookville
  • Named forBenjamin Franklin
  • Land area384 sq mi + 6.6 sq mi water
  • Population22,785 2020 Census
  • Parcels mapped18,071 checked 15 October 2026
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Updated

UnionFayetteDearbornRipleyDecaturRushButler, OH Brookville Census outline · seat marked

Where it is

Franklin on the map of Indiana

Indiana has 92 counties and county equivalents, each with its own records office. Shapes with a page are links.

Adams CountyAllen CountyBartholomew CountyBenton CountyBlackford CountyBoone CountyBrown CountyCarroll CountyCass CountyClark CountyClay CountyClinton CountyCrawford CountyDaviess CountyDearborn CountyDecatur CountyDeKalb CountyDelaware CountyDubois CountyElkhart CountyFayette CountyFloyd CountyFountain CountyFulton CountyGibson CountyGrant CountyGreene CountyHamilton CountyHancock CountyHarrison CountyHendricks CountyHenry CountyHoward CountyHuntington CountyJackson CountyJasper CountyJay CountyJefferson CountyJennings CountyJohnson CountyKnox CountyKosciusko CountyLaGrange CountyLake CountyLaPorte CountyLawrence CountyMadison CountyMarion CountyMarshall CountyMartin CountyMiami CountyMonroe CountyMontgomery CountyMorgan CountyNewton CountyNoble CountyOhio CountyOrange CountyOwen CountyParke CountyPerry CountyPike CountyPorter CountyPosey CountyPulaski CountyPutnam CountyRandolph CountyRipley CountyRush CountySt. Joseph CountyScott CountyShelby CountySpencer CountyStarke CountySteuben CountySullivan CountySwitzerland CountyTippecanoe CountyTipton CountyUnion CountyVanderburgh CountyVermillion CountyVigo CountyWabash CountyWarren CountyWarrick CountyWashington CountyWayne CountyWells CountyWhite CountyWhitley CountyFranklin County Franklin
Counties of Indiana · Franklin highlighted

History

Formed in 1811 from Clark County and Dearborn County

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

Franklin County was created by the Indiana Territory in 1811 from Clark and Dearborn counties. When Indiana became a state in 1816, Franklin became a county in the new state of Indiana. The county experienced several boundary changes in its early years, losing land to the creation of Fayette County in 1819 and Union County in 1821.

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

  1. 1811
    Franklin County created Franklin created by Indiana Territory from Clark and Dearborn.
    from Clarkfrom Dearborn
    · Ind. Terr. Laws, 1809-1816, chs. 6, 60/pp. 108-111, 190
  2. 1816
    Became part of Indiana Franklin became a county in Indiana when the state of Indiana was created from Indiana Territory and small parts of Illinois and Michigan Territories. · U.S. Stat., vol. 3, ch. 57 [1816], secs. 1-2/p. 289 and res. 1 [1816]/p. 399; Van Zandt, 115
  3. 1819
    Lost territory Franklin lost to creation of Fayette.
    to Fayette
    · Ind. Acts 1818, 3d sess., ch. 28, secs. 1, 9/pp. 103, 106
  4. 1820
    Gained territory Franklin 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 Franklin and six other counties for administrative and judicial purposes.
    from Delawarefrom Adams
    · Ind. Acts 1819, 4th sess., ch. 54/p. 95
  5. 1821
    Lost territory Franklin lost to creation of Union.
    to Union
    · Ind. Acts 1820, 5th sess., ch. 58, secs. 1, 8/pp. 126, 129
  6. 1821
    Changed Delaware New Purchase (later Adams New Purchase) was detached from concurrent jurisdiction of Franklin and six other counties and attached to Bartholomew for administrative and judicial purposes.
    DelawareAdamsBartholomew
    · Ind. Acts 1820, 5th sess., ch. 31, secs. 1-2, 8/pp. 79-80, 82 and ch. 32/p. 83
  7. 1826
    Lost territory Franklin lost to Fayette and Union.
    to Fayetteto Union
    · Ind. Acts 1825, 10th sess., ch. 7/p. 11

Land and parcels

What the maps cover in Franklin

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

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

Franklin by the Census

Population
22,785 2020 Census count
Housing units
9,639 2020 Census count
Land area
384 square miles
Water area
6.6 square miles
People per sq mi
59 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

Franklin County's official site

We have found the county's site but not its offices yet; start there.

County government

See your own lot on these maps

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Questions

Common questions about Franklin County

When was Franklin County founded?
Franklin County was founded in 1811, formed from Clark County and Dearborn County, and named after Benjamin Franklin.
What is the county seat of Franklin County?
The county seat of Franklin County is Brookville.
Is there an online parcel map for Franklin County?
Yes. Indiana Geographic Information Office (IndianaMap) publishes a parcel map of 18,071 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Franklin County's boundary or name changed?
Franklin County was created in 1811 from Clark County and Dearborn County. Since then the Atlas of Historical County Boundaries records 6 later changes, chiefly involving Adams County, Delaware County and Fayette County.
Is my lot in a flood zone?
We do not have flood maps for Franklin County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby

Counties next door