Residential delivery area · South Dakota
ZIP Code 57787: Union Center, SD
ZIP code 57787 uses the postal name Union Center, South Dakota and lies entirely in Meade County (Census 2020 ZIP-county file). About 490 people live there (Census Bureau, ACS 2020-2024). Median household income is $53,750 (Census Bureau, ACS 2020-2024). Its land lies outside any incorporated or census-designated place.
- ACS2020-24
- Census2020
- ZBP2023
- IRS2022
- Town
- Union Center · its only residential ZIP
- County
- Meade County
- Metro area
- Rapid City, SD
- House district
- SD at large 119th Congress
- State
- South Dakota
- Time zone
- Mountain
- Land area
- 627.2 sq mi · under 1 person per sq mi
Where is ZIP code 57787?
57787 centers on 44.668°, -102.658° and covers 627.2 square miles of land plus 1.0 of water. It borders 10 ZIP codes: 57737, 57792, 57758, 57788, 57791, 57761, 57785, 57748, 57626, 57760.
The map draws ZIP code areas only. For the streets inside 57787, 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 57787 compare with the rest of Meade County?
| Measure | 57787 | In Meade County | In SD |
|---|---|---|---|
| People (ACS 2020-2024) | 487 | 12th of 19 | 213th of 375 |
| Median household income | $54k | not ranked | not ranked |
| Median home value | $62k | not ranked | not ranked |
57787's income and home value are not ranked: it has fewer than 1,000 residents (487). 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 4% 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 57787?
The 2020 Census counted 336 people in 57787; the ACS, which samples households over 2020-2024, estimates 487. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 487±394 (90% margin)
- 2020 Census count
- 336
- Households
- 200
- Median age
- 36.7
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 57787?
Of the 487 people the ACS estimates in 57787, 21.8% are under 18 and 4.5% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (80.1%), then Hispanic or Latino (16.6%).
- Under 1821.8%
- 18 to 6473.7%
- 65 and older4.5%
- White, not Hispanic80.1%
- Hispanic or Latino16.6%
- Other or two or more3.3%
- 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 57787 earn?
Median household income is $53,750 (ACS 2020-2024).
- Median household income
- $53,750±$28,211
- Income per person
- $21,844
- Below the poverty line
- 13.6%
- Unemployed (of the labor force)
- 0.0%
- Adults 25+ with a bachelor's degree
- 35.9%
- Adjusted gross income per tax return, 2022
- $66,814140 returns; wages 37% 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 57787?
- Median home value (owners' estimate)
- $61,800
- Median gross rent
- $952
- Homes owned by their occupants
- 44.5%
- Housing units
- 200
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001).
What businesses are in 57787?
4 business establishments had a location in this ZIP code in 2023, 2 fewer than 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 57787?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 57737 | Enning | 77 | – | 10.4 mi |
| 57792 | White Owl | 114 | $104k | 15.1 mi |
| 57758 | Mud Butte | 35 | – | 22.9 mi |
| 57788 | Vale | 598 | $85k | 27.1 mi |
| 57791 | Wasta | 97 | $42k | 30.7 mi |
| 57761 | New Underwood | 1,180 | $98k | 31.1 mi |
| 57785 | Sturgis | 10,874 | $64k | 31.9 mi |
| 57748 | Howes | 369 | – | 32.3 mi |
| 57626 | Faith | 979 | $68k | 32.8 mi |
| 57760 | Newell | 966 | $65k | 36.7 mi |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.