ZIP Code 57783 Map
Census ZIP Code Tabulation Area 57783 in Spearfish, SD (Lawrence County). ZCTA boundaries closely approximate USPS delivery areas.
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ZIP 57783 Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
17,248
Households
7,849
Median household income
$74,844
Median age
41 years
Median home value
$373,300
Median gross rent
$965/mo
Owner-occupied homes
58.6%
Bachelor's degree or higher
38.1%
Below poverty level
14%
Land area
213.2 sq mi
Population density
81 / sq mi