Located in the northwestern corner of the county, it borders the following townships: •
Polk Township, Crawford County - north •
North Bloomfield Township - east •
Congress Township - southeast •
Gilead Township - south •
Canaan Township - southwest •
Tully Township, Marion County - west •
Whetstone Township, Crawford County - northwest No municipalities are located in Washington Township, although the
census-designated place of
Iberia lies in the western part of the township and the locale of Surprise can still be identified in the southeast corner of section 10. ==Name and history==