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County · code 29081

Harrison CountyMissouri

Harrison County is a county in Missouri with its seat in Bethany. It was formed on February 22, 1843.

  • Founded1843
  • County seatBethany
  • Named forAlbert Galliton Harrison
  • Land area723 sq mi + 3.9 sq mi water
  • Population8,157 2020 Census
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Updated

DaviessMercerDecatur, IAGentryWorthRinggold, IAGrundy Bethany Census outline · seat marked

Where it is

Harrison on the map of Missouri

Missouri has 115 counties and county equivalents, each with its own records office. Shapes with a page are links.

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Counties of Missouri · Harrison highlighted

History

Formed in 1843 from Daviess County

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

Harrison was created from unorganized territory and initially attached to Daviess County for civil and military purposes. In 1845, Harrison was fully organized and detached from Daviess County. Harrison was named after Albert Galliton Harrison.

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

  1. 1843
    Harrison County created Harrison created from Non-County Area 7; Harrison not fully organized, attached to Daviess "for civil and military purposes." Non-County Area 7 eliminated.
    from Daviess
    · Mo. Laws 1842-1843, pub., p. 37
  2. 1845
    Lost territory Harrison fully organized, detached from Daviess. Harrison lost to creation of Non-County Area 35; Non-County Area 35 attached to Harrison "for all civil and military purposes."
    to Daviess
    · Mo. Laws 1844-1845, secs. 10-11, 46/pp. 33, 46
  3. 1851
    Gained territory Harrison gained all of Non-County Area 35; Non-County Area 35 eliminated. · Mo. Laws 1850-1851, pub., p. 63

Land and parcels

What the maps cover in Harrison

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

Harrison by the Census

Population
8,157 2020 Census count
Housing units
4,019 2020 Census count
Land area
723 square miles
Water area
3.9 square miles
People per sq mi
11 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

Harrison 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 Harrison 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 Harrison County

When was Harrison County founded?
Harrison County was founded in 1843, formed from Daviess County, and named after Albert Galliton Harrison.
What is the county seat of Harrison County?
The county seat of Harrison County is Bethany.
Is there an online parcel map for Harrison County?
Not that we have found yet. Lot lines and owners of record are kept by the county assessor's office. When a public parcel map appears, it shows here.
Has Harrison County's boundary or name changed?
Harrison County was created in 1843 from Daviess County. Since then the Atlas of Historical County Boundaries records 2 later changes, chiefly involving Daviess County.
Is my lot in a flood zone?
We do not have flood maps for Harrison 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