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Washington Township
Washington Township
Township
	Location in Greene County
	Coordinates: 38°57′48″N 87°03′32″W / 38.96333°N 87.05889°W
Country	United States
State	Indiana
County	Greene
Government
• Type	Indiana township
Area
• Total	42.95 sq mi (111.2 km2)
• Land	42.53 sq mi (110.2 km2)
• Water	0.42 sq mi (1.1 km2) 0.98%
Elevation	482 ft (147 m)
Population (2020)
• Total	1,017
• Density	24/sq mi (9.1/km2)
GNIS feature ID	0453997

Washington Township is one of fifteen townships in Greene County, Indiana, USA. As of the 2010 census, its population was 1,017,^[1] down from 1,186 at 2010.^[2]

Historical population
Census	Pop.	%±
1890	1,804	—
1900	2,404	33.3%
1910	2,306	−4.1%
1920	2,092	−9.3%
1930	1,733	−17.2%
1940	1,639	−5.4%
1950	1,341	−18.2%
1960	1,246	−7.1%
1970	1,241	−0.4%
1980	1,366	10.1%
1990	1,213	−11.2%
2000	1,256	3.5%
2010	1,186	−5.6%
2020	1,017	−14.2%
Source: US Decennial Census^[3]

Geography

According to the 2010 census, the township has a total area of 42.95 square miles (111.2 km²), of which 42.53 square miles (110.2 km²) (or 99.02%) is land and 0.42 square miles (1.1 km²) (or 0.98%) is water.^[2] Lakes in this township include Long Pond. The stream of Fourmile Creek runs through this township.