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County · code 19093

Ida CountyIowa

Ida County is a county in Iowa with its seat in Ida Grove, created in 1851.

  • Founded1851
  • County seatIda Grove
  • Named forMount Ida
  • Land area432 sq mi + 0.5 sq mi water
  • Population7,005 2020 Census
  • Parcels mapped11,626 checked 15 October 2026
Open the free map Click any parcel in Ida County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

SacWoodbury Ida Grove Census outline · seat marked

Where it is

Ida 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 CountyGreene CountyGrundy CountyGuthrie CountyHamilton CountyHancock CountyHardin CountyHarrison CountyHenry CountyHoward CountyHumboldt 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 CountyIda County Ida
Counties of Iowa · Ida 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.

Ida County was created from Polk County on January 15, 1851, and named after Mount Ida. Initially not fully organized, it was attached to Woodbury County for revenue, election, and judicial purposes in 1853, then fully organized and detached in 1859. In 1864, Ida County was attached to Sac County for judicial purposes, and became fully independent again in 1870 when those judicial attachments were repealed.

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

  1. 1851
    Ida County created Ida created from Non-County Area 9 attached to Polk; Ida not fully organized, not attached.
    from Polk
    · Iowa Acts 1850-1851, ch. 9, sec. 26/p. 33
  2. 1853
    Changed Ida attached to Woodbury "for revenue, election, and judicial purposes".
    Woodbury
    · Iowa Acts 1852-1853, ch. 8, sec. 14/p. 24
  3. 1859
    Changed Ida fully organized, detached from Woodbury.
    Woodbury
    · Swisher, "Organization of Counties," 575
  4. 1864
    Changed Ida attached to Sac "for judicial purposes."
    Sac
    · Iowa Acts 1864, ch. 47, secs. 2, 9/pp. 47-49
  5. 1870
    Changed Ida fully organized, detached from Sac when judicial attachments of 30 March 1864 were repealed.
    Sac
    · Iowa Acts 1870, ch. 2, secs. 3-4/pp. 3-4

Land and parcels

What the maps cover in Ida

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

Ida by the Census

Population
7,005 2020 Census count
Housing units
3,352 2020 Census count
Land area
432 square miles
Water area
0.5 square miles
People per sq mi
16 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

County government

See your own lot on these maps

Open Ida 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 Ida County

When was Ida County founded?
Ida County was founded in 1851, formed from Polk County, and named after Mount Ida.
What is the county seat of Ida County?
The county seat of Ida County is Ida Grove.
Is there an online parcel map for Ida County?
Yes. Iowa Department of Homeland Security and Emergency Management (statewide parcels, mirrored by the University of Iowa) publishes a parcel map of 11,626 parcels, rated fallback here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Ida County's boundary or name changed?
Ida County was created in 1851 from Polk County. Since then the Atlas of Historical County Boundaries records 4 later changes, chiefly involving Sac County and Woodbury County.
Who issues building permits in Ida County?
The county's page on building permits: Permits – Ida County, Iowa. Inside a city or town, ask that city first.
Is my lot in a flood zone?
We do not have flood maps for Ida 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