Residential delivery area · South Dakota
ZIP Code 57234: Estelline, SD
ZIP code 57234 uses the postal name Estelline, South Dakota and lies mostly in Deuel County (50% of its land), reaching into Hamlin County and Brookings County (Census 2020 ZIP-county file). About 1,300 people live there (Census Bureau, ACS 2020-2024). Median household income is $82,358 (Census Bureau, ACS 2020-2024). By Census place, under 1% of its land lies in Estelline, and 2% in smaller places; 97% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Estelline · its only residential ZIP
- County
- Deuel County (50%); Hamlin County (43%); Brookings County (6%)
- Census places
- Estelline
- House district
- SD at large 119th Congress
- State
- South Dakota
- Time zone
- Central
- Land area
- 102.3 sq mi · 13 people per sq mi
Where is ZIP code 57234?
57234 centers on 44.610°, -96.894° and covers 102.3 square miles of land plus 4.7 of water. It borders 5 ZIP codes: 57223, 57220, 57268, 57226, 57212.
The map draws ZIP code areas only. For the streets inside 57234, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 57234 compare with the rest of Deuel County?
| Measure | 57234 | In Deuel County | In SD |
|---|---|---|---|
| People (ACS 2020-2024) | 1,339 | 3rd of 11 | 108th of 375 |
| Median household income | $82k | 3rd of 3 | 41st of 107 |
| Median home value | $173k | 3rd of 3 | 84th of 109 |
Its median household income is higher than in 65% of U.S. residential ZIP codes, and it is denser than 20% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 57234?
The 2020 Census counted 1,256 people in 57234; the ACS, which samples households over 2020-2024, estimates 1,339. Between the 2010 and 2020 censuses its population fell 1.4% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 1,339±202 (90% margin)
- 2020 Census count
- 1,256−1.4% since 2010 (1,274)
- Households
- 497
- Median age
- 37.5
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 57234?
Of the 1,339 people the ACS estimates in 57234, 27.9% are under 18 and 17.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (86.3%).
- Under 1827.9%
- 18 to 6454.7%
- 65 and older17.3%
- White, not Hispanic86.3%
- Hispanic or Latino8.0%
- Other or two or more4.7%
- Asian, not Hispanic0.7%
- Black, not Hispanic0.3%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 57234 earn?
Median household income is $82,358 (ACS 2020-2024), the 3rd highest of the 3 ranked ZIP codes in Deuel County. It is not measurably different from 2015-2019 ($76,772 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $82,358±$9,341
- Income per person
- $40,381
- Below the poverty line
- 6.5%
- Unemployed (of the labor force)
- 0.7%
- Adults 25+ with a bachelor's degree
- 29.7%
- Adjusted gross income per tax return, 2022
- $79,095560 returns; wages 61% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 57234?
FHFA's house price index for 57234, built from repeat sales and appraisals of the same homes, rose 221% from 2015 to 2025 and rose 113% from 2020 to 2025.
- Median home value (owners' estimate)
- $173,000
- Median gross rent
- $763
- Homes owned by their occupants
- 88.9%
- Housing units
- 657
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 57234?
28 business establishments had a location in this ZIP code in 2023, 7 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction6
- Other services (except public administration)5
- Wholesale trade4
- Retail trade3
- Finance and insurance3
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 57234?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 57223 | Castlewood | 1,429 | $92k | 8.6 mi |
| 57220 | Bruce | 665 | $86k | 10.5 mi |
| 57268 | Toronto | 435 | $76k | 10.5 mi |
| 57226 | Clear Lake | 1,953 | $83k | 14.7 mi |
| 57212 | Arlington | 1,819 | $94k | 20.1 mi |
| 57248 | Lake Norden | 1,295 | $96k | 14.6 mi (near) |
| 57218 | Brandt | 180 | $66k | 15.1 mi (near) |
| 57241 | Hayti | 936 | $86k | 16.9 mi (near) |
| 57214 | Badger | 162 | $65k | 17.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.