57437 ZIP Code, Eureka, SD

57437 is a ZIP code in Eureka, South Dakota — mostly in McPherson County (69% of its land), with smaller parts in Campbell County. It covers 533 square miles of land. The closest ZIP codes are 57448, 58413 and 58581. 1,074 people live here in 556 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (82%). Median household income is $49,276, well below the South Dakota median of $75,081; the median age is 63.3, older than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents1,074
Households556
Median household income$49,276
Income per person$51,925
Median age63.3
Homeowners81.7%
Median home value$86,700
Median rent$566
Bachelor's degree or higher20.8%
Average commute (minutes)18.8
Households with kids under 1818.2%
Moved in the past year5.0%
Below the poverty line12.8%
Broadband internet75.7%
Speak a non-English language at home10.7%

Household income

% of householdsValue
<$10K5.4%
$10–15K8.8%
$15–25K9.7%
$25–35K10.3%
$35–50K17.8%
$50–75K15.1%
$75–100K11.0%
$100–150K6.3%
$150–200K6.8%
$200K+8.8%

Age

% of all residentsValue
<105.2%
10–197.6%
20–247.1%
25–345.4%
35–445.4%
45–544.9%
55–6416.9%
65–7424.9%
75+22.6%

Tenure

% of housing unitsValue
Owned, with mortgage12.4%
Owned outright50.9%
Rented14.2%
Vacant22.5%

Type of building

% of housing unitsValue
Detached house84.9%
Townhome1.8%
2–4 units6.8%
5–19 units1.0%
20+ units2.6%
Mobile / other2.8%

Businesses in 57437

53 business establishments with 282 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

See every USPS carrier route in 57437 with residential and business mailbox counts on the route map. Open the EDDM route map.

Nearby ZIP codes

Areas that include 57437

Mail every home in 57437

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) 57437, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 57437 in?
57437 is a Eureka, SD mailing address. None of its land lies inside a Census-defined city or community.
What county is 57437 in?
57437 is mostly in McPherson County (69% of its land), with smaller parts in Campbell County.
What is the population of 57437?
About 1,074 people (±124), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 1,206.
What is the median household income in 57437?
$49,276 (±$14,031), 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 57437?
EDDM2GO's stored route library does not include 57437 yet. The EDDM route map loads its carrier routes and mailbox counts when you search the ZIP code.
What ZIP codes are near 57437?
The closest, measured center to center: 57448 (15.3 mi, Hosmer), 58413 (19.6 mi, Ashley), 58581 (20 mi, Zeeland), 57632 (20.4 mi, Herreid), 57452 (21.3 mi, Java) and 57646 (22.2 mi, Mound City).

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