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County · code 19031

Cedar CountyIowa

Cedar County is a county in Iowa with its county seat in Tipton. The county was formed on December 21, 1837, from Dubuque County.

  • Founded1837
  • County seatTipton
  • Named forCedar River, Minnesota and Iowa
  • Land area579 sq mi + 2.5 sq mi water
  • Population18,505 2020 Census
  • Parcels mapped19,901 checked 15 October 2026
Open the free map Click any parcel in Cedar County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

Clinton Tipton Census outline · seat marked

Where it is

Cedar on the map of Iowa

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

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Counties of Iowa · Cedar highlighted

History

Formed in 1837 from Dubuque County, Johnson County and Keokuk County

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

Cedar County was created by Wisconsin Territory on December 21, 1837, from Dubuque County, with Johnson and Keokuk counties temporarily attached for administrative purposes. When Iowa Territory was created from Wisconsin Territory on July 3, 1838, Cedar became a county within Iowa Territory. On July 4, 1838, Johnson was fully organized and detached from Cedar, and Keokuk was also detached and attached to Johnson for judicial purposes. Cedar County became a county of the state of Iowa when Iowa achieved statehood on December 28, 1846.

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

  1. 1837
    Cedar County created Cedar created by Wisconsin Territory from Dubuque; Johnson and Keokuk attached to Cedar "for temporary purposes."
    from Dubuquefrom Johnsonfrom Keokuk
    · Wis. Terr. Laws 1837, no. 6, sec. 13/p. 135
  2. 1838
    Became part of Iowa Cedar became an Iowa Territory county when Iowa Territory was created from Wisconsin Territory. · U.S. Stat., vol. 5, ch. 96[1838]/pp. 235-241
  3. 1838
    Changed Johnson fully organized, detached from Cedar; Keokuk detached from Cedar, attached to Johnson "for judicial purposes."
    JohnsonKeokuk
    · History of Johnson, 172; Wis. Terr. Laws 1838, spec. sess., no. 10, sec. 1/pp. 543-544
  4. 1846
    Became part of Iowa Cedar became an Iowa county when the state of Iowa was created from Iowa Territory. · U.S. Stat., vol. 9, ch. 1[1847]/p. 117

Land and parcels

What the maps cover in Cedar

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

Cedar by the Census

Population
18,505 2020 Census count
Housing units
8,190 2020 Census count
Land area
579 square miles
Water area
2.5 square miles
People per sq mi
32 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.

Zoning and code

  • Zoningfrom cedarcounty.iowa.gov

County government

See your own lot on these maps

Open Cedar 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 Cedar County

When was Cedar County founded?
Cedar County was founded in 1837, formed from Dubuque County, Johnson County and Keokuk County, and named after Cedar River, Minnesota and Iowa.
What is the county seat of Cedar County?
The county seat of Cedar County is Tipton.
Is there an online parcel map for Cedar County?
Yes. Cedar County publishes a parcel map of 19,901 parcels, rated fallback here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Cedar County's boundary or name changed?
Cedar County was created in 1837 from Dubuque County, Johnson County and Keokuk County. Since then the Atlas of Historical County Boundaries records 3 later changes, chiefly involving Johnson County and Keokuk County.
Is my lot in a flood zone?
We do not have flood maps for Cedar 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