Plymouth County Genealogy
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Plymouth Countywide Sources
1790-1940 U.S. Federal Census World Vital Records
1790-1940 United States Federal Census Archives
1875 Andreas Atlas History of Plymouth County US Gen Web Archives
1880-1920 and 1940-present Iowa Birth Certificates (order here) Archives
1880-1920 and 1940-present Iowa Death Certificates (order here) Archives
1880-1920 and 1940-present Iowa Marriage Certificates (order here) Archives
1906 Atlas; Names of leading farmers, Plymouth County, Iowa Part 1 US Gen Web Archives
1906 Atlas; Names of leading farmers, Plymouth County, Iowa Part 2 US Gen Web Archives
1906 Atlas; Names of leading farmers, Plymouth County, Iowa Part 3 US Gen Web Archives
1907 Atlas; Prominent Citizens; Plymouth Co., Iowa US Gen Web Archives
1907 Atlas; Residences of Plymouth Co., Plymouth County, Iowa US Gen Web Archives
Abstract of original entries, about 1856-1875 Family History Library
Atlas & directory, Plymouth County, Iowa Family History Library
BillionGraves Cemetery Records Index Family Search
Birth records, 1909-1917 Family History Library
Death records, 1880-1941 Family History Library
Deed record, 1856-1907 Family History Library
Federal Land Patents Bureau of Land Management
Find A Grave Gravestone, Tombstone, and Memorial Photo Collection World Vital Records
Floyd Valley Cemetery (Melbourne), Plymouth County, Iowa Family History Library
History of Plymouth County, Iowa, her people, industries and institutions : with biographical sketches of representative citizens and genealogical records of many of the old families Family History Library
History of the counties of Woodbury and Plymouth, Iowa : includes an extended sketch of Sioux City, their early settlement and progress to the present time; a description of their historic and interesting localities; sketches of the prominent men, and biographies of many of the representative citizens Family History Library
Iowa Births and Christenings Index, 1857-1947
Iowa Births and Christenings, 1830-1950 Family Search
Iowa Cemetery Records
Iowa Deaths and Burials, 1850-1990 Family Search
Iowa Marriage Records 1834 - 1900 Archives
Iowa Marriages, 1809-1992 Family Search
Iowa Marriages, 1851-1900
Iowa, County Births, 1880-1935 Family Search
Land transfer books, 1859-1918 Family History Library
Marriage records, 1871-1928 Family History Library
Militia register, 1879 Family History Library
Naturalization record card index, 1869-1906 Family History Library
Naturalization records, 1872-1944 Family History Library
Old age assistance tax, 1935-1937 Family History Library
Plymouth County, Iowa cemetery inscriptions, 1870-1980 Family History Library
Plymouth County, Iowa census, 1925 Iowa : every name index Family History Library
Plymouth County, Iowa early marriages, 1860-1880 Family History Library
Plymouth County, Iowa, index to Le Mars sentinel Family History Library
Probate index, 1871-1899 ; Letters of administration, guardianship, and executors, 1901-1928 ; Records of heirs and estates, ca1874-1890 Family History Library
Probate records, 1871-1928 Family History Library
Record of birth, 1918-1938 Family History Library
Record of heirs and estates of decedents, Plymouth County, Iowa Family History Library
Register of birth, 1880-1908 Family History Library
Sexton's record, 1871-1967 Family History Library
Town lot deed record, 1857-1907 Family History Library
U.S. Federal Census 1790-1940 Family Search
WII Plymouth Co., Iowa Honor Roll of Dead and Missing US Gen Web Archives
Woodbury and Plymouth Counties, Iowa History
More Plymouth County records are available on the statewide page