Mercer County, Kentucky
Demographics
As of the census of 2000, there were 20,817 people, 8,423 households, and 6,039 families residing in the county. The population density was 83 per square mile (32/km²).

Mercer County, Kentucky

Section Title: Demographics
Table Section Text: As of the census of 2000, there were 20,817 people, 8,423 households, and 6,039 families residing in the county. The population density was 83 per square mile (32/km²).

Historical population

Census	Pop.	%±

1790	7,091	—

1800	9,646	36.0%

1810	12,630	30.9%

1820	15,587	23.4%

1830	17,694	13.5%

1840	18,720	5.8%

1850	14,067	−24.9%

1860	13,701	−2.6%

1870	13,144	−4.1%

1880	14,142	7.6%

1890	15,034	6.3%

1900	14,426	−4.0%

1910	14,063	−2.5%

1920	14,795	5.2%

1930	14,471	−2.2%

1940	14,629	1.1%

1950	14,643	0.1%

1960	14,596	−0.3%

1970	15,960	9.3%

1980	19,011	19.1%

1990	19,148	0.7%

2000	20,817	8.7%

2010	21,331	2.5%

Est. 2016	21,477	0.7%

U.S. Decennial Census 1790-1960 1900-1990 1990-2000 2010-2013

Sentence(s)

As of the 2010 census, the population of Mercer County was 21,331.

final_sentence: As of the 2010 census, the population of Mercer County was 21,331.