Oregon Historical County Records Guide
Umatilla County Records Inventory
Land Subdivision Records
Series documents the subdividing and partitioning of land within the county. Records include survey notes, correspondence, photographs, satisfaction of agreements, maps of subdivided and partitioned land, and contracts and permits. Information includes subdivision names; lot, street, and alley dimensions; and township, range, and section numbers of land to be subdivided or partitioned.
Umatilla County town plats dating to 1863 were recorded in the Deed Record (Deeds and Indexes).
Records at the Umatilla County Courthouse, Records Office Back Room:
Index to Partition Plats [loose pages], 1990-present (.05 cu.ft.);
Index to Town Plats, vol. 1, 1863-2004 (1 volume);
Partition Plat Originals, 1990-present (ca.835 plats);
Partition Plat [Working Copies], 1990-present (ca.835 plats);
Plat Cabinet [Subdivision Plats], vol. 1-14, 1883-present (ca.930 plats);
Town Plats Partition Plats and Street Index, ca.1863-present (1 binder);
Town Plats [Working Copies], vol. 1-14, 1883-present (ca.930 plats);
Umatilla County Town Plat Index, 1863-present (1 binder).
Records at the Umatilla County Courthouse, Planning Department Office, Closet:
Land Divisions [Register], ca.1974-present (1 binder).
Records at the Umatilla County Courthouse, Planning Department Office:
Land Partitions [Case Files], ca.1976-present (42 cu.ft.).
Records at the Umatilla County Courthouse, Planning Department Basement Storage
[Land Use Action Case Files-includes comprehensive plan and zoning amendments, subdivision records, conditional use records, variance records, and related documents-in brown document pouches], ca.1986-present (20 cu.ft.);
Old L. Division Requests That Were Denied [Land Division Records], ca.1979-ca.1987 (.75 cu.ft.);
Old Subs [Subdivision Case Files], ca.1972-2006 (5 cu.ft.).
Records at the Umatilla County Courthouse, Planning Department Old Basement Office:
Umatilla County Development Ordinance [includes zoning and land division information], 1984-1990 (1 binder).
Records at the Umatilla County Courthouse, Assessment Division Cartography
Plats [Partition], 1990-2006 (16 volumes);
[Subdivision Plats-incomplete set-alphabetical], ca.1883-present (ca.18 volumes).
Records at the Umatilla County Surveyor's Office, Records Office Security Microfilm Cabinet:
[Plat Book-Town], vol. 1-6 ca.1883-ca.1945 (1 reel of microfilm);
[Umatilla County Plat Books-Town], vol. 1-8, ca.1883-ca.1956 (1 reel of microfilm).