What is "weldon spring heights"

Population (2000): 79
Housing Units (2000): 32
Land area (2000): 0.089723 sq. miles (0.232381 sq. km)
Water area (2000): 0.000000 sq. miles (0.000000 sq. km)
Total area (2000): 0.089723 sq. miles (0.232381 sq. km)
FIPS code: 78334
Located within: Missouri (MO), FIPS 29
Location: 38.705185 N, 90.686092 W
ZIP Codes (1990):
Note: some ZIP codes may be omitted esp. for suburbs.
Headwords: