Penobscot County, Maine
Incorporated · Boundary Changes · County Seat · Cities · Towns · Plantations · Townships · Adjacent Counties · Cemeteries · Land Records · Naturalization Records · Maps · Message Boards · Newspapers · Probate Records · General Resources · Bibliography 
Incorporated
1816 from part of Hancock County
Boundary Changes
Land was set off to Piscataquis County in 1838, and to Aroostook County in 1839 and 1843
County Seat
Bangor, since 1816
Cities
Towns
Alton, Bradford, Bradley, Burlington, Carmel, Charleston, Chester, Clifton, Corinna, Corinth, Dexter, Dixmont, East Millinocket, Eddington, Edinburg, Enfield, Etna, Exeter, Garland, Glenburn, Greenbush, Hampden, Hermon, Holden, Howland, Hudson, Kenduskeag, Lagrange, Lakeville, Lee, Levant, Lincoln, Lowell, Mattawamkeag, Maxfield, Medway, Milford, Millinocket, Mount Chase, Newburgh, Newport, Orono, Orrington, Passadumkeag, Patten, Plymouth, Springfield, Stacyville, Stetson, Veazie, Winn, Woodville
Plantations
Carroll Plantation, Drew Plantation, Seboeis Plantation, Webster Plantation
Townships
Argyle Township, Grand Falls Township, Greenfield Township, Grindstone Township, Herseytown Township, Kingman Township, Mattamiscontis Township, Prentiss Township, Summit Township
Adjacent Counties
Aroostook County, Hancock County, Piscataquis County, Somerset County, Waldo County, Washington County
Cemeteries
The Tombstone Transcription Project: Penobscot County, Maine
Interment.net: Cemeteries of Penobscot County, Maine
Find A Grave: Penobscot County
Land Records
Penobscot County Registry of Deeds
Naturalization Records
Maine, County Naturalization Records, 1800-1990
Maine, United States Naturalization Records, 1918-1991
Maps
Maine Historical Maps: Penobscot County
Message Boards
Ancestry.com Message Board: Penobscot County
Newspapers
Historic American Newspapers Directory: Penobscot County
Probate Records
Maine County Probate Records, 1760-1979
General Resources
Penobscot County Genealogical Society
Penobscot County MEGenWeb Project
MEGenWeb Archives: Penobscot County
FamilySearch Catalog: Penobscot, Maine
Bibliography
______, Atlas of Penobscot county, Maine: from recent and actual surveys & records: under the superintendence of W.A. Sherman (New York, N. Y.: Comstock & Cline, 1875)
______, History of Penobscot County, Maine; with illustrations and biographical sketches (Cleveland, Williams, Chase & Co., 1882)
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