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County · code 18009

Blackford CountyIndiana

Blackford County is a county in Indiana with its seat in Hartford City, formed in 1838.

  • Founded1838
  • County seatHartford City
  • Named forIsaac Blackford
  • Land area165 sq mi + 0.5 sq mi water
  • Population12,112 2020 Census
  • Parcels mapped8,697 checked 15 October 2026
Open the free map Click any parcel in Blackford County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

DelawareJay Hartford City Census outline · seat marked

Where it is

Blackford 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 CountyBoone CountyBrown CountyCarroll CountyCass CountyClark CountyClay CountyClinton CountyCrawford CountyDaviess CountyDearborn CountyDecatur CountyDeKalb CountyDelaware CountyDubois CountyElkhart CountyFayette CountyFloyd CountyFountain CountyFranklin 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 CountyBlackford County Blackford
Counties of Indiana · Blackford highlighted

History

Formed in 1838 from Jay County

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

Blackford County was created from Jay County on April 2, 1838, but was initially attached to Jay County for administrative and judicial purposes. The county was fully organized and detached from Jay County on January 29, 1839. Blackford County was named after Isaac Blackford.

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

  1. 1838
    Blackford County created Blackford created from Jay; Blackford not fully organized, attached to Jay for administrative and judicial purposes. Mistakes in description corrected 29 January 1839 and 5 December 1842.
    from Jay
    · Ind. Acts 1837, 22d sess., loc., ch. 97/p. 290
  2. 1839
    Changed Blackford fully organized, detached from Jay; mistake of 2 April 1838 corrected (no change).
    Jay
    · Ind. Acts 1838, 23d sess., gen., ch. 49/p. 64
  3. 1840
    Boundary clarified Blackford boundaries were redefined (no change).
    no change
    · Ind. Acts 1839, 24th sess., gen., ch. 60/p. 79
  4. 1842
    Boundary clarified Blackford boundaries were redefined, correcting mistake of 2 April 1838 (no change).
    no change
    · Ind. Rev. Stat. 1843, ch. 2, secs. 2, 26, 28-31, 36-37, 42-44, 61, 67, 77, 80-82, 85-86/pp. 68, 74-81, 84, 86, 88-89

Land and parcels

What the maps cover in Blackford

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

Blackford by the Census

Population
12,112 2020 Census count
Housing units
5,857 2020 Census count
Land area
165 square miles
Water area
0.5 square miles
People per sq mi
73 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.

Records

Permits

Zoning and code

County government

See your own lot on these maps

Open Blackford 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.

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Questions

Common questions about Blackford County

When was Blackford County founded?
Blackford County was founded in 1838, formed from Jay County, and named after Isaac Blackford.
What is the county seat of Blackford County?
The county seat of Blackford County is Hartford City.
Is there an online parcel map for Blackford County?
Yes. Indiana Geographic Information Office (IndianaMap) publishes a parcel map of 8,697 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Blackford County's boundary or name changed?
Blackford County was created in 1838 from Jay County. Its boundary has been clarified three times since, with no change on the ground.
Who issues septic and well permits in Blackford County?
The county's page on septic systems and wells: Health department: septic and well.
Is my lot in a flood zone?
We do not have flood maps for Blackford 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