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County · code 29009

Barry CountyMissouri

Barry County is a county in Missouri, with its county seat in Cassville. It was created on January 5, 1835, from Greene County and named after William T. Barry.

  • Founded1835
  • County seatCassville
  • Named forWilliam T. Barry
  • Land area778 sq mi + 13 sq mi water
  • Population34,534 2020 Census
  • Parcels mapped27,175 checked 14 October 2026
Open the free map Click any parcel in Barry County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

StoneLawrenceMcDonaldNewton Cassville Census outline · seat marked

Where it is

Barry on the map of Missouri

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

Adair CountyAndrew CountyAtchison CountyAudrain CountyBarton CountyBates CountyBenton CountyBollinger CountyBoone CountyBuchanan CountyButler CountyCaldwell CountyCallaway CountyCamden CountyCape Girardeau CountyCarroll CountyCarter CountyCass CountyCedar CountyChariton CountyChristian CountyClark CountyClay CountyClinton CountyCole CountyCooper CountyCrawford CountyDade CountyDallas CountyDaviess CountyDeKalb CountyDent CountyDouglas CountyDunklin CountyFranklin CountyGasconade CountyGentry CountyGreene CountyGrundy CountyHarrison CountyHenry CountyHickory CountyHolt CountyHoward CountyHowell CountyIron CountyJackson CountyJasper CountyJefferson CountyJohnson CountyKnox CountyLaclede CountyLafayette CountyLawrence CountyLewis CountyLincoln CountyLinn CountyLivingston CountyMcDonald CountyMacon CountyMadison CountyMaries CountyMarion CountyMercer CountyMiller CountyMississippi CountyMoniteau CountyMonroe CountyMontgomery CountyMorgan CountyNew Madrid CountyNewton CountyNodaway CountyOregon CountyOsage CountyOzark CountyPemiscot CountyPerry CountyPettis CountyPhelps CountyPike CountyPlatte CountyPolk CountyPulaski CountyPutnam CountyRalls CountyRandolph CountyRay CountyReynolds CountyRipley CountySt. Charles CountySt. Clair CountySte. Genevieve CountySt. Francois CountySt. Louis CountySaline CountySchuyler CountyScotland CountyScott CountyShannon CountyShelby CountyStoddard CountyStone CountySullivan CountyTaney CountyTexas CountyVernon CountyWarren CountyWashington CountyWayne CountyWebster CountyWorth CountyWright CountySt. Louis cityBarry County Barry
Counties of Missouri · Barry highlighted

History

Formed in 1835 from Greene County

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

Barry County was created from Greene County on January 5, 1835. Within months, on March 14, 1835, it lost territory to the creation of Polk County. Over the following years, the county lost additional areas to the creation of Newton, Dade, and Lawrence counties, though parts of these new counties were temporarily attached to Barry for civil and military purposes until they were fully organized.

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

  1. 1835
    Barry County created Barry created from Greene.
    from Greene
    · Mo. Laws 1834-1835, priv. and loc., pp. 42-43
  2. 1835
    Lost territory Barry lost to Polk.
    to Polk
    · Mo. Laws 1834-1835, priv. and loc., p. 44
  3. 1838
    Lost territory Barry lost to creation of Newton, Non-County Area 29, and Non-County Area 30; Non-County Area 29 attached to Barry "for civil and military purposes." Portion of Barry and Newton overlapped until 28 March 1845.
    to Newton
    · Mo. Laws 1838-1839, pub., pp. 19-20
  4. 1841
    Lost territory Barry lost attached Non-County Area 29 to creation of Dade; Non-County Area 29 eliminated.
    to Dade
    · Mo. Laws 1840–1841, pub., sec. 10/pp. 33–34
  5. 1843
    Lost territory Barry lost to creation of Lawrence; Lawrence not fully organized, parts of Lawrence attached to Barry and Dade "for civil and military purposes."
    to Lawrenceto Dade
    · Mo. Laws 1842-1843, pub., p. 39
Show all 9 changes (4 more, mostly small adjustments)
  1. 1835
    Barry County created Barry created from Greene.
    from Greene
    · Mo. Laws 1834-1835, priv. and loc., pp. 42-43
  2. 1835
    Lost territory Barry lost to Polk.
    to Polk
    · Mo. Laws 1834-1835, priv. and loc., p. 44
  3. 1838
    Lost territory Barry lost to creation of Newton, Non-County Area 29, and Non-County Area 30; Non-County Area 29 attached to Barry "for civil and military purposes." Portion of Barry and Newton overlapped until 28 March 1845.
    to Newton
    · Mo. Laws 1838-1839, pub., pp. 19-20
  4. 1841
    Lost territory Barry lost attached Non-County Area 29 to creation of Dade; Non-County Area 29 eliminated.
    to Dade
    · Mo. Laws 1840–1841, pub., sec. 10/pp. 33–34
  5. 1843
    Lost territory Barry lost to creation of Lawrence; Lawrence not fully organized, parts of Lawrence attached to Barry and Dade "for civil and military purposes."
    to Lawrenceto Dade
    · Mo. Laws 1842-1843, pub., p. 39
  6. 1845
    Changed Lawrence fully organized, detached from Barry.
    Lawrence
    · Mo. Laws 1844-1845, secs. 7-9/pp. 31-32
  7. 1845
    Changed Area of overlap between Barry and Newton assigned to Barry.
    Newton
    · Mo. Rev. Stat. 1845, secs. 29-30/p.137
  8. 1849
    Changed Barry's western boundary defined (no change). · Mo. Laws 1848-1849, pub., pp. 34-35
  9. 1870
    Changed Barry's boundaries defined (no change). · Mo. Laws 1870, adj. sess., gen., p. 34

Land and parcels

What the maps cover in Barry

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

Barry by the Census

Population
34,534 2020 Census count
Housing units
16,990 2020 Census count
Land area
778 square miles
Water area
13 square miles
People per sq mi
44 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

Barry 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

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Questions

Common questions about Barry County

When was Barry County founded?
Barry County was founded in 1835, formed from Greene County, and named after William T. Barry.
What is the county seat of Barry County?
The county seat of Barry County is Cassville.
Is there an online parcel map for Barry County?
Yes. A public source publishes a parcel map of 27,175 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Barry County's boundary or name changed?
Barry County was created in 1835 from Greene County. Since then the Atlas of Historical County Boundaries records 6 later changes, chiefly involving Dade County, Lawrence County and Newton County.
Is my lot in a flood zone?
We do not have flood maps for Barry 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