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County · code 39063

Hancock CountyOhio

Hancock County is a county in Ohio with Findlay as its seat, founded in 1820.

  • Founded1820
  • County seatFindlay
  • Named forJohn Hancock
  • Land area531 sq mi + 2.3 sq mi water
  • Population74,920 2020 Census
  • Parcels mapped38,740 checked 16 October 2026
Open the free map Click any parcel in Hancock County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

HardinWoodWyandotPutnam Findlay Census outline · seat marked

Where it is

Hancock on the map of Ohio

Ohio has 88 counties and county equivalents, each with its own records office. Shapes with a page are links.

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Counties of Ohio · Hancock highlighted

History

Formed in 1820 from Logan County, Delaware County and Wood County

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

Hancock County was created in 1820 from parts of Logan, Delaware, and Wood counties. Initially not fully organized, it was attached to Wood County for administrative and judicial purposes until 1828, when it was fully organized and detached from Wood. In 1845, Hancock County lost territory to the creation of Wyandot County.

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

  1. 1820
    Hancock County created Hancock created from Non-County Area 9 attached to Logan and a small part of Non-County Area 5 attached to Delaware; Hancock not fully organized, attached to Wood for administrative and judicial purposes.
    from Loganfrom Delawarefrom Wood
    · Ohio Laws 1819, 18th assy., loc., ch. 37, secs. 1-2/pp. 90-91; Chase, 3:ch. 429/p. 2134-2135
  2. 1828
    Changed Hancock fully organized, detached from Wood.
    Wood
    · Ohio Laws 1827, 26th assy., gen., p. 5; Chase, 3:ch. 462/p. 2144
  3. 1845
    Lost territory Hancock lost to creation of Wyandot.
    to Wyandot
    · Ohio Laws 1844, 43d assy., loc., secs. 1-2, 4/pp. 61-62

Land and parcels

What the maps cover in Hancock

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

Hancock by the Census

Population
74,920 2020 Census count
Housing units
33,655 2020 Census count
Land area
531 square miles
Water area
2.3 square miles
People per sq mi
141 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 Hancock 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 Hancock County

When was Hancock County founded?
Hancock County was founded in 1820, formed from Logan County, Delaware County and Wood County, and named after John Hancock.
What is the county seat of Hancock County?
The county seat of Hancock County is Findlay.
Is there an online parcel map for Hancock County?
Yes. Hancock County publishes a parcel map of 38,740 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Hancock County's boundary or name changed?
Hancock County was created in 1820 from Logan County, Delaware County and Wood County. Since then the Atlas of Historical County Boundaries records 2 later changes, chiefly involving Wood County and Wyandot County.
Who issues building permits in Hancock County?
The county's page on building permits: Permits. Inside a city or town, ask that city first.
Who issues septic and well permits in Hancock 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 Hancock 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