PlainZIP

Ipswich, SD · standard

ZIP Code 57451

Edmunds County, South Dakota - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

2,293
2/sq mi
$86,000
Median income
$195,700
Median home value
31.4%
Bachelor's or higher

The verdict

Ipswich pairs an above-median household income with below-median home values, in a rural, homeowner-dominated area.

Top 31%
household income, US ZIPs
42th pct
home value, US ZIPs
2
people per sq mi
79%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 57451 against every reporting US ZIP.

ZIP code 57451 covers 1146.5 square miles in Ipswich, Edmunds County, South Dakota (a standard USPS delivery area), with a modest 2,293 residents on file, a density of 2 people per square mile, in the Chicago time zone.

ZIP 57451 lands in the middle-income range, with a median household income of $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 solid share of residents have a four-year degree: 31.4% of adults hold a bachelor's degree or higher, the median age is 41.2, and the average commute is -. Compare these figures to the South Dakota and national benchmarks above rather than reading 57451's numbers in isolation.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 57451

Top 5 sectors by establishment count in Ipswich, SD

Which industries have the most business establishments in ZIP 57451.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, 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; 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

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 57451?

41.2

Median Age

49.3%

Male

50.7%

Female

2.1%

Foreign-Born

White 96.6%
African American 0.1%
Asian 1.0%
American Indian or Alaska Native 0.1%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 2.2%
Hispanic or Latino 3.0%

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)

How much do residents earn?

$86,000

Median Household Income

+12% vs state

$45,069

Per Capita Income

7.4%

Poverty Rate

0.8%

Unemployment Rate

How ZIP 57451 ranks nationally

Ipswich, SD household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$86,000 Top 31% higher than 69% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). This entry sits in this band. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 57.3%
Bachelor's Degree or Higher 31.4%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

1,004

Total Housing Units

940

Occupied Units

64

Vacant Units

2.58

Avg Household Size

Occupancy Type

Owner 79.0%
Renter 21.0%

$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)

How have home values changed over time?

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.

What businesses operate in this ZIP?

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.

More ZIP Codes in Edmunds County

57428 standard
Bowdle, SD
Pop: 710
57471 standard
Roscoe, SD
Pop: 674
57448 standard
Hosmer, SD
Pop: 348

Related Areas

Edmunds County Ipswich, SD South Dakota

Frequently Asked Questions

What county is ZIP code 57451 in? ▼
ZIP code 57451 (Ipswich) is located in Edmunds County, South Dakota. Edmunds County contains multiple ZIP codes, see the full list at /counties/edmunds-sd.
What is the population of ZIP code 57451? ▼
ZIP code 57451 in Ipswich, SD has a population of 2,293 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 57451? ▼
The median household income in ZIP 57451 is $86,000, which is 13% above the national average of $76,288.
What is the average home value in ZIP 57451? ▼
The median home value in ZIP 57451 is $195,700, which is 30% below the national average of $278,155.
What is the demographic makeup of ZIP 57451? ▼
The largest racial group in ZIP 57451 is White at 96.6%. Hispanic or Latino residents make up 3.0% of the population.
How many businesses are in ZIP code 57451? ▼
ZIP code 57451 has 60 business establishments employing approximately 339 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 57451? ▼
The top industries by establishment count in ZIP 57451 are: Retail trade (7), Transportation and warehousing (7), Accommodation and food services (7). There are 10 industry sectors represented in total.
How have home values changed in ZIP code 57451? ▼
According to the FHFA House Price Index, home values in ZIP 57451 increased by 17.3% in 2023. Since 2000, home values in this ZIP have appreciated by approximately 190%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 57451? ▼
In ZIP code 57451, 57.3% of residents aged 25+ have a high school diploma or higher, and 31.4% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 57451? ▼
In ZIP code 57451, approximately 79.0% of occupied housing units are owner-occupied and 21.0% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 57451? ▼
The poverty rate in ZIP code 57451 is 7.4% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.