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County · code 19069

Franklin CountyIowa

Franklin County is a county in Iowa, with its seat in Hampton. It was created on January 15, 1851, and named after Benjamin Franklin.

  • Founded1851
  • County seatHampton
  • Named forBenjamin Franklin
  • Land area582 sq mi + 0.6 sq mi water
  • Population10,019 2020 Census
  • Parcels mapped17,388 checked 14 October 2026
Open the free map Click any parcel in Franklin County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

HardinButler Hampton Census outline · seat marked

Where it is

Franklin 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 CountyFremont CountyGreene 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 CountyFranklin County Franklin
Counties of Iowa · Franklin highlighted

History

Formed in 1851 from Delaware County and Polk County

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

Franklin County was created in 1851 from parts of Delaware and Polk counties, though it was not initially organized or independently administered. For several years, Franklin County was attached to neighboring counties for administrative and judicial purposes: first to Chickasaw in 1853, then to Hardin in 1855. Franklin County became fully organized and independent in 1856.

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

  1. 1851
    Franklin County created Franklin created from Non-County Area 6 attached to Delaware and Non-County Area 9 attached to Polk; Franklin not fully organized, not attached.
    from Delawarefrom Polk
    · Iowa Acts 1850-1851, ch. 9;sec. 12/p. 30
  2. 1853
    Changed Franklin attached to Chickasaw for administrative and judicial purposes (Franklin indirectly attached to Fayette, through Chickasaw, until 12 September 1853).
    ChickasawFayette
    · Iowa Acts 1852-1853, ch. 12, sec. 1/p. 28
  3. 1855
    Changed Franklin detached from Chickasaw, attached to Hardin "for election, judicial, and revenue purposes."
    ChickasawHardin
    · Iowa Acts. 1854-1855, ch. 142, sec. 1/p. 211
  4. 1856
    Changed Franklin fully organized, detached from Hardin.
    Hardin
    · Swisher, "Organization of Counties," 575

Land and parcels

What the maps cover in Franklin

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

Franklin by the Census

Population
10,019 2020 Census count
Housing units
4,656 2020 Census count
Land area
582 square miles
Water area
0.6 square miles
People per sq mi
17 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.

Permits

Zoning and code

County government

See your own lot on these maps

Open Franklin 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 Franklin County

When was Franklin County founded?
Franklin County was founded in 1851, formed from Delaware County and Polk County, and named after Benjamin Franklin.
What is the county seat of Franklin County?
The county seat of Franklin County is Hampton.
Is there an online parcel map for Franklin County?
Yes. Franklin County publishes a parcel map of 17,388 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Franklin County's boundary or name changed?
Franklin County was created in 1851 from Delaware County and Polk County. Since then the Atlas of Historical County Boundaries records 3 later changes, chiefly involving Chickasaw County, Hardin County and Fayette County.
Who issues building permits in Franklin County?
The county's page on building permits: Septic & Well Permits. Inside a city or town, ask that city first.
Is my lot in a flood zone?
We do not have flood maps for Franklin 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