ZIP Code 63787
About Zalma
Zalma, once known as "Bollinger's Mill", is an unincorporated community and census-designated place (CDP) on the banks of the winding Castor River at a point where the river makes a horseshoe bend in southern Bollinger County in southeast Missouri, United States. When the railroad moved to town, the name Bollinger's Mill was changed to Zalma, after railroad worker Zalma Block. Zalma is also said to come from a Native American word meaning "the end." As of the 2020 U.S. census, Zalma had a population of 73.
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Area Profile
US Census (ACS 5-year · Gazetteer)
540
population
$45,893
median household income
9
people / sq mi
$101,400
median home value
56.5
median age
296
housing units
223
households
61.4
land area (sq mi)