Parcel Chartplaces Open the free map

County · code 39069

Henry CountyOhio

Henry County is a county in Ohio, formed in 1820 and seated in Napoleon.

  • Founded1820
  • County seatNapoleon
  • Named forPatrick Henry
  • Land area416 sq mi + 3.7 sq mi water
  • Population27,662 2020 Census
  • Parcels mapped19,795 checked 15 October 2026
Open the free map Click any parcel in Henry County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

FultonDefianceWoodWilliamsLucas Napoleon Census outline · seat marked

Where it is

Henry on the map of Ohio

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

Adams CountyAllen CountyAshland CountyAshtabula CountyAthens CountyAuglaize CountyBelmont CountyBrown CountyButler CountyCarroll CountyChampaign CountyClark CountyClermont CountyClinton CountyColumbiana CountyCoshocton CountyCrawford CountyCuyahoga CountyDarke CountyDefiance CountyDelaware CountyErie CountyFairfield CountyFayette CountyFranklin CountyFulton CountyGallia CountyGeauga CountyGreene CountyGuernsey CountyHamilton CountyHancock CountyHardin CountyHarrison CountyHighland CountyHocking CountyHolmes CountyHuron CountyJackson CountyJefferson CountyKnox CountyLake CountyLawrence CountyLicking CountyLogan CountyLorain CountyLucas CountyMadison CountyMahoning CountyMarion CountyMedina CountyMeigs CountyMercer CountyMiami CountyMonroe CountyMontgomery CountyMorgan CountyMorrow CountyMuskingum CountyNoble CountyOttawa CountyPaulding CountyPerry CountyPickaway CountyPike CountyPortage CountyPreble CountyPutnam CountyRichland CountyRoss CountySandusky CountyScioto CountySeneca CountyShelby CountyStark CountySummit CountyTrumbull CountyTuscarawas CountyUnion CountyVan Wert CountyVinton CountyWarren CountyWashington CountyWayne CountyWilliams CountyWood CountyWyandot CountyHenry County Henry
Counties of Ohio · Henry highlighted

History

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

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

Henry County was created in 1820 from parts of Logan and Shelby counties, though it was not fully organized until 1834. The county was named after Patrick Henry. Between 1835 and 1850, Henry County lost territory to the creation of Lucas, Defiance, and Fulton counties.

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

  1. 1820
    Henry County created Henry created from Non-County Area 9 attached to Logan and Non-County Area 7 attached to Shelby. Henry overlapped part of the area disputed with Michigan Territory since 1805 that was actually under Michigan control. Henry not fully organized, attached to Wood for administrative and judicial purposes.
    from Loganfrom Shelbyfrom Wood
    · Ohio Laws 1819, 18th assy., loc., ch. 37, secs. 1-2/p. 91; Chase, 3:ch. 429/pp. 2134-2135
  2. 1824
    Changed Henry detached from Wood, attached to Williams "for judicial purposes."
    WoodWilliams
    · Ohio Laws 1823, 22d assy., loc., ch. 16/p. 19; Chase, 3:ch. 440/p. 2137
  3. 1834
    Changed Henry fully organized, detached from Williams.
    Williams
    · Ohio Laws 1834, 33d assy., loc., p. 11
  4. 1835
    Changed Ohio legislature authorized Henry to gain control of the area disputed with Michigan Territory. · Ohio Laws 1834, 33d assy., loc., secs. 1, 3-5/pp. 92-93
  5. 1835
    Lost territory Henry lost to creation of Lucas.
    to Lucas
    · Ohio Laws 1835, 33d assy., 2d sess., sec. 1/p. 5
  6. 1845
    Lost territory Henry lost to creation of Defiance.
    to Defiance
    · Ohio Laws 1844, 43d assy., loc., sec. 1/p. 191
  7. 1850
    Lost territory Henry lost to creation of Fulton.
    to Fulton
    · Ohio Laws 1849, 48th assy., loc., p. 682

Land and parcels

What the maps cover in Henry

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

Henry by the Census

Population
27,662 2020 Census count
Housing units
12,036 2020 Census count
Land area
416 square miles
Water area
3.7 square miles
People per sq mi
66 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

Henry 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

Open Henry 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 Henry County

When was Henry County founded?
Henry County was founded in 1820, formed from Logan County, Shelby County and Wood County, and named after Patrick Henry.
What is the county seat of Henry County?
The county seat of Henry County is Napoleon.
Is there an online parcel map for Henry County?
Yes. Henry County publishes a parcel map of 19,795 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Henry County's boundary or name changed?
Henry County was created in 1820 from Logan County, Shelby County and Wood County. Since then the Atlas of Historical County Boundaries records 6 later changes, chiefly involving Williams County, Defiance County and Fulton County.
Is my lot in a flood zone?
We do not have flood maps for Henry 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