57451 ZIP Code, Ipswich, SD

57451 is a ZIP code in Ipswich, South Dakota — mostly in Edmunds County (92% of its land), with smaller parts in Brown County. It covers 430 square miles of land. The closest ZIP codes are 57460, 57471 and 57435. 2,485 people live here in 940 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (79%). Median household income is $86,000, above the South Dakota median of $75,081.

Quick facts

Key figures

MeasureValue
Residents2,485
Households940
Median household income$86,000
Income per person$45,069
Median age41.2
Homeowners79.0%
Median home value$195,700
Median rent$1,213
Bachelor's degree or higher31.4%
Average commute (minutes)19.9
Households with kids under 1828.0%
Moved in the past year18.6%
Below the poverty line7.4%
Broadband internet97.1%
Speak a non-English language at home7.3%

Household income

% of householdsValue
<$10K4.4%
$10–15K1.6%
$15–25K1.5%
$25–35K6.0%
$35–50K9.8%
$50–75K20.0%
$75–100K17.7%
$100–150K16.8%
$150–200K9.6%
$200K+12.8%

Age

% of all residentsValue
<1019.8%
10–196.4%
20–244.3%
25–3411.7%
35–4410.8%
45–5410.2%
55–6416.6%
65–7413.4%
75+6.7%

Tenure

% of housing unitsValue
Owned, with mortgage38.6%
Owned outright35.6%
Rented19.5%
Vacant6.3%

Type of building

% of housing unitsValue
Detached house88.5%
Townhome0.0%
2–4 units4.0%
5–19 units0.7%
20+ units0.0%
Mobile / other6.8%

Businesses in 57451

60 business establishments with 339 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

See every USPS carrier route in 57451 with residential and business mailbox counts on the route map. Open the EDDM route map.

Nearby ZIP codes

Areas that include 57451

Mail every home in 57451

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 57451, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 57451 in?
57451 is a Ipswich, SD mailing address. None of its land lies inside a Census-defined city or community.
What county is 57451 in?
57451 is mostly in Edmunds County (92% of its land), with smaller parts in Brown County.
What is the population of 57451?
About 2,485 people (±161), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 2,381.
What is the median household income in 57451?
$86,000 (±$10,247), compared with $75,081 for South Dakota as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 57451?
EDDM2GO's stored route library does not include 57451 yet. The EDDM route map loads its carrier routes and mailbox counts when you search the ZIP code.
What ZIP codes are near 57451?
The closest, measured center to center: 57460 (16.9 mi, Mansfield), 57471 (18.7 mi, Roscoe), 57435 (19.7 mi, Cresbard), 57401 (19.8 mi, Aberdeen), 57456 (19.8 mi, Leola) and 57481 (19.8 mi, Long Lake Colony).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.