Marshall County, Indiana

Founding: 1836 (declared in 1835)
Parent county: St. Joseph

Namesake: John Marshall, Supreme Court chief justice
Seat: Plymouth (1836–)

Land area: 444 square miles

Population (2020): 46,095

Population (historic): 1,651 (1840); 12,722 (1860); 23,414 (1880); 25,119 (1900); 25,077 (1930)

Periods of population growth: pre-1840–1900; 1920–2010

Subdivisions: One city; five towns; ten townships

National Register listings: 33

Pre-1940 residences (estimated): 5,200 (25.9%)
Pre-1940 housing survival rate: 62.3%
Pre-1860 housing survival rate (1940): 8.8%

Farm housing in disrepair (1950): 4.8%

Nonfarm housing in disrepair (1950): 5.4%
Average farmhouse value (1930): $1,383
Average outbuilding value (1930): $1,392

Average farmhouse size (1940): 6.7 rooms
Number of farms (1920): 2,720
Average farm size (1920): 77.2 acres
Sources of settlement: Ohio, Pennsylvania, Germany, and New York

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Plymouth

Namesake: Plymouth, Massachusetts

Founding: 1836 (platting); 1836 (post office); 1851 (incorporation)

Population (2020): 10,214

Population (historic): 1,277 (1860); 2,570 (1880); 3,656 (1900); 5,290 (1930)

Periods of population growth: pre-1860–2020
Pre-1940 residences (estimated): 931 (21.2%)

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Outstanding Buildings

1. Greer Farm (1879). 3671 County Road 12B. Bourbon. Italianate.
2. Swoverland Farm (c. 1880). 8549 Elm Road. Bourbon. Italianate.
3. Weaver Farm (1883). 11495 State Route 331. Bourbon. Italianate/Eastlake.
4. Matthew Erwin Farm (1882). 13020 State Route 331. Bourbon. Italianate.
5. *Lewis Boggs House (c. 1855). 9564 County Road 14. Center. Greek Revival.
6. *Klinghammer House (c. 1885). 1715 Lake Avenue. Center. Queen Anne.
7. *Marshall County Infirmary (1895). 10924 Lincoln Highway. Center. Romanesque.
8. William Dudgeon House (c. 1850). 12171 County Road 19B. Green. Greek Revival.
9. Log (?) House (c. 1845). 460 State Route 10. Tippecanoe.