Residential delivery area · South Dakota
ZIP Code 57331: Dimock, SD
ZIP code 57331 uses the postal name Dimock, South Dakota and lies mostly in Hutchinson County (66% of its land), reaching into Douglas County and Davison County (Census 2020 ZIP-county file). About 230 people live there (Census Bureau, ACS 2020-2024). Median household income is $101,406 (Census Bureau, ACS 2020-2024). By Census place, under 1% of its land lies in Dimock; more than 99% is outside any Census place.
- ACS2020-24
- Census2020
- ZBP2023
- IRS2022
- Town
- Dimock · its only residential ZIP
- County
- Hutchinson County (66%); Douglas County (23%); Davison County (11%)
- Census places
- Dimock
- House district
- SD at large 119th Congress
- State
- South Dakota
- Time zone
- Central
- Land area
- 68.3 sq mi · 3 people per sq mi
Where is ZIP code 57331?
57331 centers on 43.474°, -98.045° and covers 68.3 square miles of land plus 0.0 of water. It borders 4 ZIP codes: 57334, 57366, 57363, 57328.
The map draws ZIP code areas only. For the streets inside 57331, 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 57331 compare with the rest of Hutchinson County?
| Measure | 57331 | In Hutchinson County | In SD |
|---|---|---|---|
| People (ACS 2020-2024) | 231 | 12th of 13 | 292nd of 375 |
| Median household income | $101k | not ranked | not ranked |
| Median home value | $293k | not ranked | not ranked |
57331's income and home value are not ranked: it has fewer than 1,000 residents (231). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 8% of 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 57331?
The 2020 Census counted 452 people in 57331; the ACS, which samples households over 2020-2024, estimates 231. Between the 2010 and 2020 censuses its population fell 1.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 231±80 (90% margin)
- 2020 Census count
- 452−1.5% since 2010 (459)
- Households
- 111
- Median age
- 46.9
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 57331?
Of the 231 people the ACS estimates in 57331, 21.6% are under 18 and 19.9% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (98.3%).
- Under 1821.6%
- 18 to 6458.4%
- 65 and older19.9%
- White, not Hispanic98.3%
- Other or two or more1.7%
- Hispanic or Latino0.0%
- Black, not Hispanic0.0%
- Asian, not Hispanic0.0%
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 57331 earn?
Median household income is $101,406 (ACS 2020-2024). It is not measurably different from 2015-2019 ($91,385 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $101,406±$26,199
- Income per person
- $45,012
- Below the poverty line
- 8.7%
- Unemployed (of the labor force)
- 0.0%
- Adults 25+ with a bachelor's degree
- 16.3%
- Adjusted gross income per tax return, 2022
- $74,032220 returns; wages 60% 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 57331?
- Median home value (owners' estimate)
- $292,500
- Median gross rent
- –
- Homes owned by their occupants
- 74.8%
- Housing units
- 121
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001).
What businesses are in 57331?
6 business establishments had a location in this ZIP code in 2023, the same count as in 2018 (ZIP Code Business Patterns).
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 57331?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 57334 | Ethan | 1,081 | $62k | 4.9 mi |
| 57366 | Parkston | 2,598 | $78k | 7.6 mi |
| 57363 | Mount Vernon | 866 | $78k | 17.7 mi |
| 57328 | Corsica | 1,290 | $87k | 19.9 mi |
| 57330 | Delmont | 594 | $72k | 15.6 mi (near) |
| 57301 | Mitchell | 19,104 | $66k | 16.3 mi (near) |
| 57376 | Tripp | 944 | $62k | 18.3 mi (near) |
| 57311 | Alexandria | 1,389 | $104k | 18.6 mi (near) |
| 57313 | Armour | 1,220 | $89k | 19.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.