Ottawa County, Ohio

Founding: 1840
Parent counties: Erie, Lucas, and Sandusky

Namesake: The Ottawa people
Seat: Port Clinton (1840–)

Land area: 255 square miles

Population (2020): 40,364

Population (historic): 2,248 (1840); 7,016 (1860); 19,762 (1880); 22,213 (1900); 24,109 (1930)

Periods of population growth: pre-1840–1910; 1920–1980; 1990–2010

Subdivisions: One city; seven villages; three CDPs; 12 townships

National Register listings: 31

Pre-1940 residences (estimated): 5,601 (20%)
Pre-1940 housing survival rate: 67.6%
Pre-1860 housing survival rate (1940): 10.4%

Farm housing in disrepair (1950): 5.3%

Nonfarm housing in disrepair (1950): 5.6%

Average farmhouse value (1930): $2,143
Average outbuilding value (1930): $1,852
Average farmhouse size (1940): 7 rooms
Number of farms (1920): 2,010
Average farm size (1920): 58.3 acres
Sources of settlement: Germany, New York, and Pennsylvania
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Port Clinton

Namesake: DeWitt Clinton, New York governor

Founding: 1828 (platting); 1840 (post office)

Population (2020): 6,025

Population (historic): 249 (1850); 543 (1870); 2,049 (1890); 3,007 (1910); 4,408 (1930)

Periods of population growth: pre-1850–1980; 2010s

Pre-1940 residences (estimated): 1,021 (29.7%)
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Outstanding Buildings

1. *Nathaniel Hadden House (1892). 3612 West Catawba Road. Catawba Island. Shingle.
2. *Henry Luckert Log House (1853). 326 Wine Cellar Road. Catawba Island.
3. *St. Paul's Lutheran Church (1892). 541 Church Road. Danbury. Italianate.
4. *Henry Lullman House (c. 1885). 2131 Danbury Road. Danbury. Eastlake.
5. *Benajah Wolcott House (1832). 9999 Bay Shore Road. Danbury.
6. Log House (c. 1850). 1350 Englebeck Road. Danbury.
7. *Mathias Kelting House (c. 1860). 8122 Harbor Road. Danbury. Greek Revival.
8. *John Graves House (1872). 6965 Harbor Road. Danbury. Italianate.
9. Kimball House (c. 1855). 16985 Portage River South Road. Harris. Greek Revival.
10. *George Lonz House (c. 1895). 1719 Fox Road. Put-in-Bay. Queen Anne.
11. *Andrew Schiele House (c. 1870). 1360 Warden Road. Put-in-Bay. Gothic Revival.