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Guide to Cass County, Iowa ancestry, family history, and genealogy birth records, marriage records, death records, census records, family history, and military records.

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Online Records

Cass County, Iowa
Map of Iowa highlighting Cass County
Location in the state of Iowa
Map of the U.S. highlighting Iowa
Location of Iowa in the U.S.
Founded January 15, 1851
County Seat Atlantic
Address Cass County Courthouse
7th St. Courthouse
Atlantic, IA 50022
Phone: (712) 243-2105
Cass County Website


County Courthouse

Cass County Courthouse
7th St. Courthouse
Atlantic, IA 50022

(712) 243-2105

Cass County


Wikipedia has more about this subject: CassCounty

Parent County

1851--Cass County was created 15 January 1851 from Pottawattamie County and organized 7 March 1853.
County seat:  Atlantic [1]

Boundary Changes

For animated maps illustrating Iowa County boundary changes, "Rotating Formation Iowa County Boundary Maps" (1816-1872) may be viewed for free at the website.

Record Loss

March 1932 -- Courthouse burned and many records were damaged. For a list of record loss in Iowa Counties see: Iowa Counties with Burned Courthouses

For further information on researching in burned counties, see the following:


Town/city records in the FamilySearch Catalog

Populated Places

Neighboring Counties

Adair • Adams • Audubon • Guthrie • Montgomery • Pottawattamie • Shelby

Cass CountyAdair CountyUnion CountyAdams CountyMontgomery CountyMills CountyPottawattamie CountyHarrison CountyShelby CountyAudubon CountyGuthrie CountyDallas CountyMadison CountyRinggold CountyTaylor CountyPage CountyFremont CountyMonona CountyCrawford CountyCarroll CountyGreene CountyCass CountySarpy CountyDouglas CountyWashington CountyBurt CountyIACass.JPG




Iowa recorded not only the federal census but state census through out the years too. The state census contains very valuable genealogical information. Where the census information can be found, what years it was taken, mortality schedules, census substitutions and much more is discussed in the very informative Iowa Census article.


Most church records are held by individual churches. For contact information, check a phone directory, such as SearchBug or Dex Knows. Some denominations are gathering their records into a central repository. For more information about these major repositories, see Iowa Church Records.



Land and property records can place an ancestor in a particular location, provide economic information, and reveal family relationships. Land records include: deeds, abstracts and indexes, mortgages, leases, grants and land patents.

See Iowa Land and Property for additional information about early Iowa land grants. After land was transferred to private ownership, subsequent transactions were usually recorded at the county courthouse, where records are currently housed.

Local Histories

Local histories are available for Cass County, Iowa. County histories may include biographies, church, school and government history, and military information. For more information about local histories, see the wiki page section Iowa Local Histories.

  • Compendium of history and biography of Cass County, Iowa : pioneer history and formation of present county system, patriotic war record, detailed township history, with sketches of towns, biographies of old settlers, and others who have made Cass County what it is. Chicago, Illinois : Henry Taylor, 1906.
  • History of Cass County, Iowa : together with sketches of its towns, villages and townships, portraits of prominent persons and biographies of old settlers and representative citizens; history of Iowa. Springfield, Illinois : Continental Historical Co., 1884.
  • Beard, J. C. Cass County in the World War, 1917-1918-1919. Atlantic, Iowa : J.C. Beard, 1919.
  • Chase, Charles F. Exposition souvenir album. Atlantic, Iowa : Democrat Pub. Co., 1904.


  • Old Antique Atlases & Maps of Iowa
  • David Rumsey Map Collection is a large online collection of rare, old, antique historical atlases, globes, maps, charts plus other cartographic treasures. This collection features the city of Cass County.


Early migration routes to and from Cass County, Iowa for European settlers included:


Civil War

Regiments. Service men in Cass County, Iowa served in various regiments. Men often joined a company (within a regiment) that originated in their county. Listed below are companies that were specifically formed in Cass County, Iowa:

- 23rd Regiment, Iowa Infantry, Company I
- 23rd Regiment, Iowa Infantry, Company I


Wikipedia has more about this subject: List of online newspaper archives ($) has a large collection of digitized Iowa newspapers online. This database is sometimes free at libraries.



In most counties in Iowa, probate records have been kept by the county judge. They include wills, fee books, claim registers, legacy records, inheritance records, probate ticklers, and dockets. The records are available at the county courthouse.

The FamilySearch Catalog lists films of probate records. To find the records for this county, use the Place Search for Iowa - Cass - Probate records.


Iowa tax records complement land records and can be used to supplement the years between censuses. Tax lists were usually made every year, however, there may be gaps of several years. For more information, see the wiki page Iowa Taxation.

Vital Records

Vital Records consist of births, adoptions, marriages, divorces, and deaths recorded on registers, certificates, and documents. A copy or an extract of most original records can be purchased from the Iowa Department of Public Health or the County Clerk's office of the county where the event occurred. See also How to order Iowa Vital Records or order electronically online..




Societies and Libraries

See also a List of Iowa Archives, Libraries, Publications, Historical & Genealogical Societies

Family History Centers