Seneca County, Ohio
Demographics

Seneca County, Ohio

Section Title: Demographics
Table Section Text: None

Historical population

Census	Pop.	%±

1830	5,159	—

1840	18,128	251.4%

1850	27,104	49.5%

1860	30,868	13.9%

1870	30,827	−0.1%

1880	36,947	19.9%

1890	40,869	10.6%

1900	41,163	0.7%

1910	42,421	3.1%

1920	43,176	1.8%

1930	47,941	11.0%

1940	48,499	1.2%

1950	52,978	9.2%

1960	59,326	12.0%

1970	60,696	2.3%

1980	61,901	2.0%

1990	59,733	−3.5%

2000	58,683	−1.8%

2010	56,745	−3.3%

Est. 2017	55,243	−2.6%

U.S. Decennial Census 1790-1960 1900-1990 1990-2000 2010-2017

Sentence(s)

As of the 2010 United States Census, there were 56,745 people residing in Seneca County.

final_sentence: As of the 2010 United States Census, there were 56,745 people residing in Seneca County.