The Great American Survey: A Slapdash Database of Historic Buildings

Founding:  1841 (declared in 1833) Parent counties:  Lafayette and unorganized territory Namesake:  Arthur St. Clair, governor of the Northwest Territory Seat:  Osceola (1841–) Land area:  670 square miles Population ( 2020 ):  9,284 Population (historic):  3,556 (1850); 6,742 (1870); 16,747 (1890); 16,412 (1910); 13,289 (1930) Periods of population growth:  pre-1850–1860; 1870–1900; 1970s; 1990–2010 Subdivisions:  Three cities; four villages; 16 townships Pre-1940 residences (estimated):  1,129 (20%) Pre-1940 housing survival rate:  27% Pre-1860 housing survival rate (1940):  2.5% Farm housing in disrepair (1950):  14.6% Nonfarm housing in disrepair (1950):  8.1% Average farmhouse value (1930):  $932 Average outbuilding value (1930):  $699 Average farmhouse size (1940):  4.5 rooms Number of farms (1920):  2,649 Average farm size (1920):  91.7 acres Sources of settlem...

Founding:  1821 (declared in 1820) Parent county:  Macomb Namesake:  The St. Clair River Seat:  St. Clair (1821–1871); Port Huron (1871–) Land area:  721 square miles Population (2020):  160,383 Population (historic):  1,114 (1830); 26,604 (1860); 46,197 (1880); 55,228 (1900); 67,563 (1930) Periods of population growth:  pre-1830–1900; 1910–2000 Subdivisions:  Eight cities; two villages; one CDP; 23 townships Pre-1940 residences (estimated):  12,452 (17.2%) Pre-1940 housing survival rate:  54.7% Pre-1860 housing survival rate (1940):  9.4% Farm housing in disrepair (1950):  7.5% Nonfarm housing in disrepair (1950):  5.2% Average farmhouse value (1930):  $1,621 Average outbuilding value (1930):  $1,454 Average farmhouse size (1940):  6.7 rooms Number of farms (1920):  4,159 Average farm size (1920):  74.9 acres Sources of settlement:  Canada, Germany, New York, Ir...

Founding:  1790 Parent county:  Unorganized territory Namesake:  Arthur St. Clair, governor of the Northwest Territory Seat:  Cahokia (1790–1814); Belleville (1814–) Land area:  658 square miles Population (2020):  257,400 Population (historic):  5,253 (1820); 20,180 (1850); 51,068 (1870); 86,685 (1900); 157,775 (1930) Periods of population growth:  pre-1820–1970; 2000s Subdivisions:  11 cities; 21 villages; five CDPs; 21 townships Pre-1940 residences (estimated):  16,778 (14.1%) Pre-1940 housing survival rate:  33.7% Pre-1860 housing survival rate (1940):  31.2% Farm housing in disrepair (1950):  6.9% Nonfarm housing in disrepair (1950):  12.4% Average farmhouse value (1930):  $1,579 Average outbuilding value (1930):  $1,230 Average farmhouse size (1940):  5.3 rooms Number of farms (1920):  3,112 Average farm size (1920):  97.8 acres Sources of settlement:  Germa...