Union County is one of about 3,141 counties and county equivalents in the United States. It has 240.3 sq. miles in land area and a population density of 62.4 per square mile. In the last three decades of the 1900s its population grew by 65.7%. On the 2000 census form, 98.5% of the population reported only one race, with 22.8% of these reporting African-American. The population of this county is 3.5% Hispanic (of any race). The average household size is 2.76 persons compared to an average family size of 3.13 persons. In 2007 transportation and warehousing was the largest of 20 major sectors. It had an average wage per job of $30,885. Per capita income grew by 19.3% between 1996 and 2006 (adjusted for inflation).

People & Income Overview (By Place of Residence)	Value	Rank in U.S.	Industry Overview (2007) (By Place of Work)	Value	Rank in U.S.
Population (2007)	14,991	2099	Covered Employment	4,073	2161
Growth (%) since 1990	46.2%	325	Avg wage per job	$31,780	1244
Households (2000)	3,367	2544	Manufacturing - % all jobs in County	4.4%	2362
Labor Force (persons) (2007)	5,102	2376	Avg wage per job	$30,643	2216
Unemployment Rate (2007)	3.2	2659	Transportation & Warehousing - % all jobs in County	9.6%	84
Per Capita Personal Income (2006)	$16,950	3088	Avg wage per job	$30,885	2688
Median Household Income (2005)	$35,592	1851	Health Care, Social Assist. - % all jobs in County	0.0%	2182
Poverty Rate (2005)	20.3	579	Avg wage per job	$0	2185
H.S. Diploma or More - % of Adults 25+ (2000)	72.5	2,241	Finance and Insurance - % all jobs in County	0.4%	2752
Bachelor's Deg. or More - % of Adults 25+ (2000)	7.5	3,049	Avg wage per job	$28,939	2512