When was Gibson County founded?

Gibson County was founded in 1813, formed from Knox County, and named after John Gibson.

What is the county seat of Gibson County?

The county seat of Gibson County is Princeton.

Is there an online parcel map for Gibson County?

Yes. Indiana Geographic Information Office (IndianaMap) publishes a parcel map of 21,898 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.

Has Gibson County's boundary or name changed?

Gibson County was created in 1813 from Knox County. Since then the Atlas of Historical County Boundaries records 14 later changes, chiefly involving Warrick County, Posey County and Pike County.

Is my lot in a flood zone?

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

County · code 18051

Gibson CountyIndiana

Gibson County is a county in Indiana with its seat in Princeton. It was created in 1813 and named after John Gibson.

Founded1813
County seatPrinceton
Named forJohn Gibson
Land area487 sq mi + 12 sq mi water
Population33,011 2020 Census
Parcels mapped21,898 checked 15 October 2026

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

Updated 20 October 2026

Census outline · seat marked

History

Formed in 1813 from Knox County

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

Gibson County was formed in 1813 from Knox County, and named after John Gibson. Princeton is the county seat.

Deeds and plats from before 1813 for land now in Gibson County may have been recorded in Knox County.

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

1813
Gibson County created Gibson created by Indiana Territory from Knox.
from Knox
1 April 1813 · Ind. Terr. Laws, 1809-1816, ch. 23/pp. 348-350
1814
Lost territory Gibson lost to creation of Perry.
to Perry
1 November 1814 · Ind. Terr. Laws, 1809-1816, ch. 7/pp. 529-533
1816
Lost territory Gibson lost to creation of Orange.
to Orange
1 February 1816 · Ind. Terr. Laws, 1809-1816, ch. 12/pp. 643-645
1816
Became part of Indiana Gibson became a county in the state of Indiana when Indiana was created from Indiana Territory and small parts of Illinois and Michigan Territories. 11 December 1816 · U.S. Stat., vol. 3, ch. 57 [1816], secs. 1-2/p. 289 and res. 1 [1816]/p. 399; Van Zandt, 115
1817
Lost territory Gibson lost to Posey and Warrick, and lost to creation of Pike.
to Posey to Warrick to Pike
1 February 1817 · Ind. Acts 1816, 1st sess., ch. 48, sec. 1/p. 202

Show all 15 changes (10 more)

1813
Gibson County created Gibson created by Indiana Territory from Knox.
from Knox
1 April 1813 · Ind. Terr. Laws, 1809-1816, ch. 23/pp. 348-350
1814
Lost territory Gibson lost to creation of Perry.
to Perry
1 November 1814 · Ind. Terr. Laws, 1809-1816, ch. 7/pp. 529-533
1816
Lost territory Gibson lost to creation of Orange.
to Orange
1 February 1816 · Ind. Terr. Laws, 1809-1816, ch. 12/pp. 643-645
1816
Lost territory Gibson lost small area to Posey.
to Posey
1 March 1816 · Ind. Terr. Laws, 1809-1816, ch. 3/pp. 604-605
1816
Became part of Indiana Gibson became a county in the state of Indiana when Indiana was created from Indiana Territory and small parts of Illinois and Michigan Territories. 11 December 1816 · U.S. Stat., vol. 3, ch. 57 [1816], secs. 1-2/p. 289 and res. 1 [1816]/p. 399; Van Zandt, 115
1817
Lost territory Gibson lost to Posey and Warrick, and lost to creation of Pike.
to Posey to Warrick to Pike
1 February 1817 · Ind. Acts 1816, 1st sess., ch. 48, sec. 1/p. 202
1818
Lost territory Gibson lost to creation of Vanderburgh.
to Vanderburgh
1 February 1818 · Ind. Acts 1817, 2d sess., spec., ch. 10, sec. 1/p. 22
1822
Gained territory Gibson gained from Posey.
from Posey
1 February 1822 · Ind. Acts 1821, 6th sess., ch. 63/p. 120
1823
Lost territory Gibson lost to Posey.
to Posey
6 January 1823 · Ind. Acts 1822, 7th sess., ch. 61/p. 116
1824
Exchanged territory Gibson exchanged with Pike, lost to Warrick.
with Pike with Warrick
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
1825
Gained territory Gibson gained from Pike.
from Pike
3 February 1825 · Ind. Acts 1825, 9th sess., ch. 13/p. 15
1842
Gained territory Gibson gained from Warrick.
from Warrick
5 December 1842 · 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
1844
Lost territory Gibson lost to Warrick.
to Warrick
13 January 1844 · Ind. Acts 1843, 28th sess., gen., ch. 81/p. 87
1847
Gained territory Gibson gained from Warrick.
from Warrick
18 January 1847 · Ind. Acts 1846, 31st sess., loc., ch. 188/p. 272
1852
Lost territory Gibson lost to Warrick.
to Warrick
7 June 1852 · Ind. Rev. Stat. 1852, 1:ch. 14, secs. 23, 27, 31, 78, 86/pp. 174, 176-177, 192, 194

Land and parcels

What the maps cover in Gibson

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

Parcels Good enough

Lot lines and tax-map numbers for 21,898 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, 18,780 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

Gibson by the Census

Population

33,011 2020 Census count

Housing units

14,539 2020 Census count

Land area

487 square miles

Water area

12 square miles

People per sq mi

68 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

Gibson 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 Gibson County.
gibsoncountyin.org

See your own lot on these maps

Open Gibson 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 Gibson County

When was Gibson County founded?: Gibson County was founded in 1813, formed from Knox County, and named after John Gibson.
What is the county seat of Gibson County?: The county seat of Gibson County is Princeton.
Is there an online parcel map for Gibson County?: Yes. Indiana Geographic Information Office (IndianaMap) publishes a parcel map of 21,898 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Gibson County's boundary or name changed?: Gibson County was created in 1813 from Knox County. Since then the Atlas of Historical County Boundaries records 14 later changes, chiefly involving Warrick County, Posey County and Pike County.
Is my lot in a flood zone?: We do not have flood maps for Gibson County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby