Annotations

JEFFERSON COUNTY, situated on the easterly boundary of Missouri, with Mississippi river on the east. Area, 500 square miles. Face of the country broken; soil generally sterile. Seat of justice, Hillsborough. Pop. in 1820, 1,835; in 1830, 2,586; in 1840, 4,296; in 1850, 6,928. (Fanning's, 1853)

JEFFERSON, a county in the E. part of Missouri, bordering on the Mississippi river, which separates it from Illinois, has an area of 654 square miles. Big river flows through the county from south to north, and falls into the Maramec, which forms part of the northern boundary. The county is also drained by Plattin, Joachim, and Sandy creeks. The northern and eastern parts are generally level and fertile ; the western portion is hilly and sterile, Indian corn, wheat, oats, hay, cattle, and pork are the staples. In 1850 this county produced 289,116 bushels of corn; 17,322 of wheat; 35,441 of oats; and 751 tons of hay. It contained 5 churches, and 281 pupils attending public schools. The hills contain rich mines of lead ; copper and cobalt are found in smaller quantities. The Mammoth mine has yielded many thousand pounds of lead. Capital, Hillsborough. Population, 6928, of whom 6416 were free, and 512, slaves. (Baldwin & Thomas, A New and Complete Gazetteer of the United States ... 1854)

Total Population 1840
4296
Total Population 1850
6928
Total Population 1860
10344
Free Black Population 1860
17
Free Black Population 1850
9
Free Black Population 1840
13
Enslaved Population 1860
564
Enslaved Population 1850
512
Enslaved Population 1840
316
Presidential Election Result 1840
Democrat
Presidential Election Result 1848
Democrat
Presidential Election Result 1852
Democrat
Presidential Election Result 1856
American (Know Nothing)
Presidential Election Result 1860
Douglas Democrat
Presidential Election Result 1864
Unconditional Union (1864)
Latitude
38.257414
Longitude
-90.543138
Waterways
Yes
Type
County
County
Jefferson
State
Missouri