Pleasant Valley Township is one of twenty townships in Fayette County, Iowa, United States. As of the 2010 census, its population was 1,002.

According to the United States Census Bureau, Pleasant Valley Township covers an area of 36.67 square miles (94.99 square kilometers); of this, 36.64 square miles (94.89 square kilometers, 99.89 percent) is land and 0.04 square miles (0.1 square kilometers, 0.11 percent) is water.

• Elgin

• Brainard at 42°55′51″N 91°42′19″W / 42.9308136°N 91.7051558°W / 42.9308136; -91.7051558

(This list is based on USGS data and may include former settlements.)

• Clermont Township (north)
• Grand Meadow Township, Clayton County (northeast)
• Marion Township, Clayton County (east)
• Highland Township, Clayton County (southeast)
• Illyria Township (south)
• Westfield Township (southwest)
• Union Township (west)
• Dover Township (northwest)

The township contains these three cemeteries: Brainard, Elgin and God's Acres.

• U.S. Route 18
• Iowa Highway 56

• North Fayette Valley Community School District

• Iowa's 1st congressional district
• State House District 24
• State Senate District 12

• United States Census Bureau 2008 TIGER/Line Shapefiles
• United States Board on Geographic Names (GNIS)
• United States National Atlas

• US-Counties.com
• City-Data.com