Residential delivery area · South Dakota
ZIP Code 57274: Webster, SD
ZIP code 57274 uses the postal name Webster, South Dakota and lies mostly in Day County (93% of its land) with the rest in Clark County (Census 2020 ZIP-county file). About 2,600 people live there (Census Bureau, ACS 2020-2024). Median household income is $68,083 (Census Bureau, ACS 2020-2024). By Census place, under 1% of its land lies in Webster; more than 99% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Webster · its only residential ZIP
- County
- Day County (93%); Clark County (7%)
- Census places
- Webster
- House district
- SD at large 119th Congress
- State
- South Dakota
- Time zone
- Central
- Land area
- 372.6 sq mi · 7 people per sq mi
Where is ZIP code 57274?
57274 centers on 45.310°, -97.556° and covers 372.6 square miles of land plus 22.9 of water. It borders 9 ZIP codes: 57219, 57273, 57272, 57468, 57217, 57261, 57239, 57235, 57434.
The map draws ZIP code areas only. For the streets inside 57274, 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 57274 compare with the rest of Day County?
| Measure | 57274 | In Day County | In SD |
|---|---|---|---|
| People (ACS 2020-2024) | 2,621 | 1st of 11 | 54th of 375 |
| Median household income | $68k | not ranked | not ranked |
| Median home value | $173k | 1st of 1 | 83rd of 109 |
57274's median household income is not ranked: its 90% margin of error (±$20,070) is more than a quarter of the figure ($68,083). 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 13% 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 57274?
The 2020 Census counted 2,686 people in 57274; the ACS, which samples households over 2020-2024, estimates 2,621. Between the 2010 and 2020 censuses its population fell 4.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 2,621
- 2020 Census count
- 2,686−4.5% since 2010 (2,813)
- Households
- 1,183
- Median age
- 41.5
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 57274?
Of the 2,621 people the ACS estimates in 57274, 21.9% are under 18 and 23.0% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (90.4%).
- Under 1821.9%
- 18 to 6455.1%
- 65 and older23.0%
- White, not Hispanic90.4%
- Other or two or more5.8%
- Hispanic or Latino3.4%
- Asian, not Hispanic0.4%
- Black, 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 57274 earn?
Median household income is $68,083 (ACS 2020-2024). It is not measurably different from 2015-2019 ($53,461 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $68,083±$20,070
- Income per person
- $43,612
- Below the poverty line
- 11.6%
- Unemployed (of the labor force)
- 1.8%
- Adults 25+ with a bachelor's degree
- 23.9%
- Adjusted gross income per tax return, 2022
- $77,7391,390 returns; wages 49% 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 57274?
FHFA's house price index for 57274, built from repeat sales and appraisals of the same homes, rose 99% from 2015 to 2025 and rose 73% from 2020 to 2025.
- Median home value (owners' estimate)
- $173,200
- Median gross rent
- $655
- Homes owned by their occupants
- 74.5%
- Housing units
- 1,379
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 57274?
148 business establishments had a location in this ZIP code in 2023, 17 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade25
- Construction19
- Other services (except public administration)17
- Health care and social assistance14
- Accommodation and food services14
- Finance and insurance11
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 57274?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 57219 | Bristol | 552 | $52k | 11.8 mi |
| 57273 | Waubay | 1,165 | $48k | 13.7 mi |
| 57272 | Wallace | 201 | $84k | 14.4 mi |
| 57468 | Pierpont | 279 | $76k | 15.7 mi |
| 57217 | Bradley | 142 | $64k | 16.3 mi |
| 57261 | Roslyn | 277 | $78k | 16.5 mi |
| 57239 | Grenville | 358 | $106k | 18.2 mi |
| 57235 | Florence | 774 | $84k | 20.1 mi |
| 57434 | Conde | 506 | $73k | 27.0 mi |
| 57256 | Ortley | 238 | $67k | 17.9 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.