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County · code 19073

Greene CountyIowa

Greene County is a county in Iowa with its seat in Jefferson, formed in 1851.

  • Founded1851
  • County seatJefferson
  • Named forNathanael Greene
  • Land area570 sq mi + 1.7 sq mi water
  • Population8,771 2020 Census
  • Parcels mapped15,367 checked 15 October 2026
Open the free map Click any parcel in Greene County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

CarrollBoone Jefferson Census outline · seat marked

Where it is

Greene on the map of Iowa

Iowa has 99 counties and county equivalents, each with its own records office. Shapes with a page are links.

Adair CountyAdams CountyAllamakee CountyAppanoose CountyAudubon CountyBenton CountyBlack Hawk CountyBoone CountyBremer CountyBuchanan CountyBuena Vista CountyButler CountyCalhoun CountyCarroll CountyCass CountyCedar CountyCerro Gordo CountyCherokee CountyChickasaw CountyClarke CountyClay CountyClayton CountyClinton CountyCrawford CountyDallas CountyDavis CountyDecatur CountyDelaware CountyDes Moines CountyDickinson CountyDubuque CountyEmmet CountyFayette CountyFloyd CountyFranklin CountyFremont CountyGrundy CountyGuthrie CountyHamilton CountyHancock CountyHardin CountyHarrison CountyHenry CountyHoward CountyHumboldt CountyIda CountyIowa CountyJackson CountyJasper CountyJefferson CountyJohnson CountyJones CountyKeokuk CountyKossuth CountyLee CountyLinn CountyLouisa CountyLucas CountyLyon CountyMadison CountyMahaska CountyMarion CountyMarshall CountyMills CountyMitchell CountyMonona CountyMonroe CountyMontgomery CountyMuscatine CountyO'Brien CountyOsceola CountyPage CountyPalo Alto CountyPlymouth CountyPocahontas CountyPolk CountyPottawattamie CountyPoweshiek CountyRinggold CountySac CountyScott CountyShelby CountySioux CountyStory CountyTama CountyTaylor CountyUnion CountyVan Buren CountyWapello CountyWarren CountyWashington CountyWayne CountyWebster CountyWinnebago CountyWinneshiek CountyWoodbury CountyWorth CountyWright CountyGreene County Greene
Counties of Iowa · Greene highlighted

History

Formed in 1851 from Polk County

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

Greene County was created from Non-County Area 9 and initially attached to Polk County. The county was attached to Dallas County in 1853 for administrative and judicial purposes, then fully organized and detached in 1854. Calhoun and Sac counties were temporarily attached to Greene County for election, judicial, and revenue purposes before each was fully organized and detached.

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

  1. 1851
    Greene County created Greene created from Non-County Area 9 attached to Polk; Greene not fully organized, not attached.
    from Polk
    · Iowa Acts 1850-1851, ch. 9, sec. 16/p. 31
  2. 1853
    Changed Greene attached to Dallas for administrative and judicial purposes.
    Dallas
    · Iowa Acts 1852-1853, ch. 12, sec. 1/p. 28
  3. 1854
    Changed Greene fully organized, detached from Dallas.
    Dallas
    · Swisher, "Organization of Counties," 575
  4. 1855
    Changed Calhoun detached from Boone, attached to Greene "for election, judicial, and revenue purposes."; Sac detached from Woodbury, attached to Greene "for election, judicial, and revenue purposes".
    CalhounBooneSacWoodbury
    · Iowa Acts. 1854-1855, ch. 142, sec. 1/p. 211
  5. 1855
    Changed Calhoun fully organized, detached from Greene.
    Calhoun
    · Swisher, "Organization of Counties," 574
  6. 1856
    Changed Sac fully organized, detached from Greene.
    Sac
    · Swisher, "Organization of Counties," 576

Land and parcels

What the maps cover in Greene

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

Greene by the Census

Population
8,771 2020 Census count
Housing units
4,309 2020 Census count
Land area
570 square miles
Water area
1.7 square miles
People per sq mi
15 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

Greene 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 Greene 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 Greene County

When was Greene County founded?
Greene County was founded in 1851, formed from Polk County, and named after Nathanael Greene.
What is the county seat of Greene County?
The county seat of Greene County is Jefferson.
Is there an online parcel map for Greene County?
Yes. Iowa Department of Homeland Security and Emergency Management (statewide parcels, mirrored by the University of Iowa) publishes a parcel map of 15,367 parcels, rated fallback here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Greene County's boundary or name changed?
Greene County was created in 1851 from Polk County. Since then the Atlas of Historical County Boundaries records 5 later changes, chiefly involving Calhoun County, Dallas County and Sac County.
Is my lot in a flood zone?
We do not have flood maps for Greene 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