ZIP Code 57451
standardIpswich · Edmunds County · South Dakota
ZIP code 57451 in Ipswich, South Dakota has a population of 2,293. The median household income is $86,000, which is 13% above the national average. Median home value is $195,700, 30% below the US average. 31.4% of residents hold a bachelor's degree or higher.
ZIP code 57451 is classified by USPS as a standard delivery area and covers roughly 1146.5 square miles in Ipswich, Edmunds County, South Dakota. The area is home to 2,293 residents, producing a population density of 2 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 57451 against South Dakota and the nation.
On the economic side, the median household income for ZIP 57451 sits at $86,000 (12% above the South Dakota average), while per-capita income is $45,069. The poverty rate stands at 7.4% and the unemployment rate at 0.8%. On housing, the median home value is $195,700 (2% above the state average) with median rent at $1,213 per month, and 79.0% of occupied units are owner-occupied — a direct signal of whether 57451 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 31.4% of adults hold a bachelor's degree or higher, the median age is 41.2, and the average commute is —. Use the benchmarks above to see where 57451 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 →
Top industries in ZIP 57451
Top 5 industries — ZIP 57451 (establishments)
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 57451, Ipswich, 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
2,293
Population
1146.5
Area (sq mi)
2
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Demographics
41.2
Median Age
49.3%
Male
50.7%
Female
2.1%
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
$86,000
Median Household Income
+12% vs state
$45,069
Per Capita Income
7.4%
Poverty Rate
0.8%
Unemployment Rate
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
Education
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
Housing
1,004
Total Housing Units
940
Occupied Units
64
Vacant Units
2.58
Avg Household Size
Occupancy Type
$195,700
Median Home Value
+2% vs state
$1,213
Median Rent
1973
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
Home Value Trends
FHFA House Price Index — annual appreciation data based on repeat sales and appraisals
+17.3%
YoY Change (2023)
290
HPI Index (2000 = 100)
+190%
Total Change Since 2000
Home values in ZIP 57451 have increased 17.3% over the past year (2023). Since 2000, this ZIP has seen +190% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2018 | -7.8% | 196 |
| 2019 | +4.0% | 203 |
| 2020 | +1.9% | 207 |
| 2021 | +17.3% | 243 |
| 2023 | — | 290 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2023. ZIP codes with few transactions may show missing values.
Local Business Landscape
Census Bureau data shows 60 business establishments in ZIP 57451, employing approximately 339 people with a combined annual payroll of $20,466,000.
60
Businesses
339
Employees
$20.5M
Annual Payroll
10
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Retail trade | 7 | 11.7% |
| Transportation and warehousing | 7 | 11.7% |
| Accommodation and food services | 7 | 11.7% |
| Construction | 6 | 10.0% |
| Wholesale trade | 5 | 8.3% |
| Manufacturing | 4 | 6.7% |
| Professional, scientific, and technical services | 4 | 6.7% |
| Health care and social assistance | 4 | 6.7% |
| Administrative and support and waste management and remediation services | 3 | 5.0% |
| Other services (except public administration) | 3 | 5.0% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
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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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