What is "spillville"

Population (2000): 386
Housing Units (2000): 184
Land area (2000): 0.419188 sq. miles (1.085693 sq. km)
Water area (2000): 0.007850 sq. miles (0.020332 sq. km)
Total area (2000): 0.427038 sq. miles (1.106025 sq. km)
FIPS code: 74370
Located within: Iowa (IA), FIPS 19
Location: 43.202433 N, 91.952071 W
ZIP Codes (1990):
Note: some ZIP codes may be omitted esp. for suburbs.
Headwords: