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ZIP Code 57433, South Dakota

ZIP Code 57433 profile, demographic data, and geographic information.

ZCTA5 57433 is a 5-digit ZIP Code area located in Brown County, South Dakota. As of official census estimates, it has a reported population of 318. The land area covers 121.38 sq mi. [1]

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population 318 ±119 2020-2024 / Census ACS 5-Year 2024
Median Age 46.9 yrs ±10 2020-2024 / Census ACS 5-Year 2024
Total Households 177 ±77 2020-2024 / Census ACS 5-Year 2024
Source: U.S. Census Bureau (PEP, ACS 5-Year).

Housing & Real Estate Profile

Housing Metric Estimate / Value Margin of Error
Total Housing Units 194 ±78
Occupied Housing Units 177 ±77
Vacant Housing Units 17 ±18
Median Home Value Suppressed —
Median Gross Rent Suppressed —
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $50,417 ±$16,405
Per Capita Income $34,722 ±$8,253
Poverty Rate 2.2% ±3.1%
Population Below Poverty Level 7 ±10
Unemployment Rate 22.6% ±29.1%
Civilian Labor Force, Employed 137 ±44
Broadband Internet Rate 87.6% ±8.3%
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Local Government & Public Administration

Authoritative general-purpose local government units serving this area U.S. Census Bureau GUS (2026) / GMAF
Government Unit Unit Type Jurisdiction Role Contact / Address
GUS Population: 37,495 (2024)
ID: 209455
County Official County Government
Contact: BROWN COUNTY AUDITOR
25 MARKET ST, STE 1, ABERDEEN SD 57401-4293

Education

Listing 10 local institutions (NCES 2024-2025) External reference via K12Guides
Institution Type Grades Location
Regular School Nearby KG-05 Aberdeen, SD
Regular School Nearby 09-12 Aberdeen, SD
Regular School Nearby PK-05 Frederick, SD
Regular School Nearby 06-08 Frederick, SD
Regular School Nearby 09-12 Frederick, SD
Regular School Nearby PK-05 Groton, SD
Regular School Nearby 09-12 Groton, SD
Regular School Nearby 06-08 Groton, SD
Regular School Nearby 06-08 Aberdeen, SD
Regular School Nearby PK-05 Aberdeen, SD
Source: k12guides.com.

Community Facilities & Infrastructure

Displaying 5 civic institutions across 2 datasets queried CMS • IPEDS • IMLS
Facility Name Category Relationship Address / Location Contact
Northern State University
College 15.2 mi away 1200 S Jay St, Aberdeen, SD, 57401-7198
6056263011
K.O. LEE ABERDEEN PUBLIC LIBRARY
Library 14.6 mi away 215 FOURTH AVENUE SE, ABERDEEN, SD, 57401
(605) 626-7097
EMMA BURNHAM PUBLIC LIBRARY
Library 16.1 mi away 403 MAIN ST, FREDERICK, SD, 57441
(605) 329-2241
WAGE MEMORIAL LIBRARY
Library 17.0 mi away 120 N MAIN STREET, GROTON, SD, 57445
(605) 397-8422
LANGFORD PUBLIC LIBRARY
Library 23.8 mi away 306 MAIN ST, LANGFORD, SD, 57454
(605) 493-6690
Distances calculated from authoritative source coordinates. Source: CMS, IMLS, NCES IPEDS.

Climate & Weather Observations

NOAA Monthly Climate Normals

Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at COLUMBIA 8 N, SD US, located 5.9 miles from ZCTA5 57433. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 21.5° 0.4° 10.9° 0.47" 7.7"
February 26.4° 4.5° 15.4° 0.44" 6.8"
March 39.3° 17.7° 28.5° 0.87" 6.1"
April 55.2° 31.1° 43.1° 1.77" 3.6"
May 68.2° 44.8° 56.5° 3.41" 0.0"
June 77.8° 55.7° 66.7° 3.59" 0.0"
July 83.1° 59.9° 71.5° 3.62" 0.0"
August 81.4° 56.9° 69.2° 2.62" 0.0"
September 72.9° 46.9° 59.9° 2.38" 0.0"
October 57.5° 33.0° 45.3° 2.11" 0.7"
November 40.7° 19.3° 30.0° 0.68" 5.7"
December 26.9° 7.3° 17.1° 0.50" 7.2"
Source: NOAA U.S. Climate Normals (1991–2020).

Local Weather Forecast

Weather forecast data is currently unavailable in the local cache.

Nearby Cities & Communities

Listing adjacent communities by spatial proximity (miles) Proximity discovery
Community Name Classification Distance Population
Columbia city City 1.7 mi —
Westport town Town 8.6 mi —
Prairiewood Village CDP CDP 10.1 mi —
Bath CDP CDP 11.7 mi —
Bath Corner CDP CDP 12.1 mi —
Aberdeen city City 14.0 mi —

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 57433. • Official Source Dataset →
  2. Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
  3. Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
  4. Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.