PlainZIP

Eureka, SD

Single-footprint Census roll-up for Eureka, SD: 1 USPS ZIP, population 1,286. Open the primary ZIP for household income, housing tenure, and commute from ACS 2023 5-Year Estimates.

U.S. Census Bureau, SimpleMaps US ZIP Code Database, delivery-area ZIP coverage

ACS city ledger plate

Sheet EUREKA-SD · Eureka, SD 1 ZIPs · 1,286 pop · #22001/25278 · McPherson County

INC-MID · RANK-BOTTOM · BELOW-PEER · BOOK-ONE · OWN-MID · POP-VILLAGE · SPREAD-UNK · HOME-LOW

  • INC-MID $49,276
  • RANK-BOTTOM #22001/25278
  • BELOW-PEER under Forbes
  • BOOK-ONE 1 ZIP
  • OWN-MID 82% owners
  • POP-VILLAGE 1,286
  • SPREAD-UNK Single-ZIP book
  • HOME-LOW $86,700

Nearest income peer: Forbes, SD (+ $24,335 income $)

Instrument codes from this city’s ACS household income, national rank, county-peer gap, ZIP book, owner tenure, population scale, intra-city income spread, and home-value band, not a moving recommendation.

Income neighbourhood around Eureka

Lowest/highest poles plus county-sharing cities nearest Eureka on average ZIP median household income. Full ladder: /cities.

median HH income

What this shows County-sharing peers only, not the full US city board. Open a near peer when the gap is small; open the poles when the mosaic is wide.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2026-08-25

National city placement

According to ACS 5-Year Estimates, Eureka, SD sits among US cities with one of the lowest household incomes among US cities, on a village-scale population base, across a single-ZIP footprint.

13th pct
household income vs 25,278 US cities
1,286
city population (Census)
1
USPS ZIP codes covered
$49,276
avg ZIP median income

Income percentile ranks this city's average ZIP median household income against 25,278 US cities with ACS income on at least one ZIP. Scale and ZIP-spread words come from Census population and USPS ZIP coverage.

Lower-income footing on only 1 ZIP ($49,276 average) · poverty 12.8%. The primary code (57437) carries the ACS household fields that matter.

Owner-occupancy sits in a mixed band (81.7%) - check the ZIP page's tenure split before treating Eureka as a pure owner town.

Within South Dakota, Henry is the closest lower-income city and Agar the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for Eureka.

Population concentration

One ZIP, 57437, is all of Eureka

There is no split to weigh here: 57437 holds every one of Eureka's 1,286 ACS residents. City-level and ZIP-level numbers on this site are the same number twice, check the ZIP page for the income/tenure/commute breakdown.

Census ZBP business roll-up

Dense ZBP book packed into Eureka's one ZIP

Citywide ZBP: 53 establishments, 282 employees , annual payroll $10,871k (~41 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 57437 (53 units) ; leading NAICS Retail trade (8) · also Health care and social assistance · Other services (except public administration) .

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ZIP Codes in Eureka, SD

These ZIP codes sit in McPherson County, which covers 4 ZIP codes in all; 1 of them fall in Eureka. See the McPherson County roll-up →

Every one of the 3 cities sharing McPherson County reports a higher average ZIP median income than Eureka, Leola, Forbes and Long Lake among them. That gap is the county's income spread, not a measure of the housing or commute picture below. Long Lake marks the far end of that range at $140,417, 185% above Eureka.

ZIP Code Population Median income Establishments Density
57437 1,286 $49,276 53 1
How we build city roll-ups · Guide: reading ZIP code data · BLS wages

Eureka roll-ups here are for informational purposes only and do not constitute financial or relocation advice. ACS and Census ZBP figures are estimates; confirm the current table against Census before a money or move decision involving Eureka, .