ZIP Code 57544
standardKennebec · Lyman County · South Dakota
ZIP code 57544 in Kennebec, South Dakota has a population of 419. The median household income is $78,750, which is 3% above the national average. Median home value is $141,700, 49% below the US average. 31.0% of residents hold a bachelor's degree or higher.
ZIP code 57544 is classified by USPS as a standard delivery area and covers roughly 838.0 square miles in Kennebec, Lyman County, South Dakota. The area is home to 419 residents, producing a population density of 1 people per square mile, and falls within the Chicago time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 57544 against South Dakota and the nation.
On the economic side, the median household income for ZIP 57544 sits at $78,750 (3% above the South Dakota average), while per-capita income is $52,531. The poverty rate stands at 4.8% and the unemployment rate at 1.2%. On housing, the median home value is $141,700 (26% below the state average) with median rent at $675 per month, and 79.2% of occupied units are owner-occupied — a direct signal of whether 57544 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 31.0% of adults hold a bachelor's degree or higher, the median age is 40.1, and the average commute is —. Use the benchmarks above to see where 57544 sits relative to South Dakota and the national baseline rather than viewing the numbers in isolation. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data — no estimates, no proprietary scoring. Verify with HUD →
Source: U.S. Census Bureau — American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 57544, Kennebec, SD · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
419
Population
838.0
Area (sq mi)
1
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Demographics
40.1
Median Age
45.8%
Male
54.2%
Female
0.0%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
Income & Employment
$78,750
Median Household Income
+3% vs state
$52,531
Per Capita Income
4.8%
Poverty Rate
1.2%
Unemployment Rate
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
Education
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
Housing
199
Total Housing Units
192
Occupied Units
7
Vacant Units
2.19
Avg Household Size
Occupancy Type
$141,700
Median Home Value
-26% vs state
$675
Median Rent
1968
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
Local Business Landscape
Census Bureau data shows 15 business establishments in ZIP 57544, employing approximately 119 people with a combined annual payroll of $5,910,000.
15
Businesses
119
Employees
$5.9M
Annual Payroll
1
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Accommodation and food services | 3 | 20.0% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
More ZIP Codes in Lyman County
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Frequently Asked Questions
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Research Kennebec, SD on Other Data Sources
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Source: U.S. Census Bureau, ACS 5-Year Estimates (2023). Business data: Source: Census ZIP Code Business Patterns (ZBP) 2023. Home value trends: Source: FHFA House Price Index (HPI), Five-Digit ZIP Codes.
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Read our methodology — how this data is sourced, computed, and verified.