Map of Union County, Arkansas

Union County overview:
Name:Union County
FIPS code:05-139
State:Arkansas
Founded:November 2, 1829
Seat:El Dorado
Largest city:El Dorado
Total Area:1,055 sq mi (2,730 km²)
Land Area:1,039 sq mi (2,690 km²)
Total Population:39,054
Population Density:40/sq mi (20/km²)
Time zone:UTC−6 (Central)
Summer Time Zone (DST):UTC−5 (CDT)
Website:www.unioncountyar.com

Union County location map. Where is Union County?

Union County location on the U.S. Map. Where is Union County.
Location of Union County in the the United States.
Union County location on the Arkansas map. Where is Union County.
Location of Union County in Arkansas.

History

Union County was formed on November 2, 1829, from portions of Clark and Hempstead counties. Areas along the waterways were originally developed for cotton plantations in the antebellum years, and planters depended on large groups of enslaved African-American workers to generate their profits.

On January 10, 1921, Dr. Samuel T. Busey hit oil with a well about a mile south of El Dorado, leading to an oil boom that attracted thousands of workers and speculators. His first well produced for fewer than two months, but by 1923, “El Dorado boasted fifty-nine oil contracting companies, thirteen oil distributors and refiners, and twenty-two oil production companies. The city was flooded with so many people that no bed space was available for them, leading to whole neighborhoods of tents and hastily constructed shacks to be erected throughout the city. The city’s population reached a high of nearly 30,000 in 1925 during the boom before dropping to 16,241 by 1930 and rising to 25,000 by 1960.” Oil production fell markedly in the early 1930s, in part due to companies’ financial difficulties during the Great Depression. It recovered later in the decade.

During World War II, chemical plants were established in the county, but their production declined after the war. Exploitation of Arkansas forests led to growth in the timber industry in the county. Oil, chemical and timber industries are still important to the economy, although in lesser proportion.

Union County Road Map

Union CountyStreet Map.
Street map of Union County, Arkansas. Source: OpenStreetMap (OSM)
Union CountyMap
Union Countypolitical map.

Geography

According to the U.S. Census Bureau, the county has a total area of 1,055 square miles (2,730 km), of which 1,039 square miles (2,690 km) is land and 16 square miles (41 km) (1.5%) is water. It is the largest county by area in Arkansas. Union County, along with Columbia County, has the largest bromine reserve in the United States. The lowest point in the state of Arkansas is located on the Ouachita River in Union County and Ashley County, where it flows out of Arkansas and into Louisiana.

Adjacent counties

National protected area

  • Felsenthal National Wildlife Refuge (part)

Union County Topographic Map

Topographic Map of Union County, Arkansas
Union County Topo map.

Union County Satellite Map

Satellite Map of Union County, Arkansas
Union County satellite map.

Union County Outline Map

Outline Map of Union County, Arkansas
Union County outline map.
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Parent Unit Map

Map of United States
The United States (US) covers a total area of 9,833,520 sq. km. Of this area, the 48 contiguous states and the District of Columbia cover 8,080,470 sq. km. The archipelago of Hawaii has an area of 28,311 sq. km while the remaining area is part of the US territories. The greatest east-west distance in the ... Read more
Map of United States
Political map of Arkansas State – Printable Collection
Arkansas (/ˈɑːrkənsɔː/ (listen) AR-kən-saw) is a landlocked state in the south-central region of the Southern United States. It is bordered by Missouri to the north, Tennessee and Mississippi to the east, Louisiana to the south, and Texas and Oklahoma to the west. Its name is from the Osage language, a Dhegiha Siouan language, and referred ... Read more
Political map of Arkansas State – Printable Collection

Related Administrative Divisions

Sub-Administrative Units Maps