Residential delivery area · South Dakota
ZIP Code 57755: Ludlow, SD
ZIP code 57755 uses the postal name Ludlow, South Dakota and lies entirely in Harding County (Census 2020 ZIP-county file). About 100 people live there (Census Bureau, ACS 2020-2024). Median household income is $68,125 (Census Bureau, ACS 2020-2024). Its land lies outside any incorporated or census-designated place.
- ACS2020-24
- Census2020
- ZBP2023
- Town
- Ludlow · its only residential ZIP
- County
- Harding County
- House district
- SD at large 119th Congress
- State
- South Dakota
- Time zone
- Mountain
- Land area
- 254.7 sq mi · under 1 person per sq mi
Where is ZIP code 57755?
57755 centers on 45.868°, -103.347° and covers 254.7 square miles of land plus 0.3 of water. It borders 6 ZIP codes: 57650, 58653, 58623, 57720, 57651, 57649.
The map draws ZIP code areas only. For the streets inside 57755, 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 57755 compare with the rest of Harding County?
| Measure | 57755 | In Harding County | In SD |
|---|---|---|---|
| People (ACS 2020-2024) | 101 | 10th of 12 | 347th of 375 |
| Median household income | $68k | not ranked | not ranked |
| Median home value | $164k | not ranked | not ranked |
57755's income and home value are not ranked: it has fewer than 1,000 residents (101). 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 3% 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 57755?
The 2020 Census counted 143 people in 57755; the ACS, which samples households over 2020-2024, estimates 101. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 101±36 (90% margin)
- 2020 Census count
- 143
- Households
- 45
- Median age
- 40.8
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 57755?
Of the 101 people the ACS estimates in 57755, 23.8% are under 18 and 19.8% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (93.1%).
- Under 1823.8%
- 18 to 6456.4%
- 65 and older19.8%
- White, not Hispanic93.1%
- Other or two or more6.9%
- 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 57755 earn?
Median household income is $68,125 (ACS 2020-2024).
- Median household income
- $68,125±$65,552
- Income per person
- $44,098
- Below the poverty line
- 0.0%
- Unemployed (of the labor force)
- 0.0%
- Adults 25+ with a bachelor's degree
- 39.0%
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 57755?
- Median home value (owners' estimate)
- $164,100
- Median gross rent
- –
- Homes owned by their occupants
- 75.6%
- Housing units
- 57
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001).
What businesses are in 57755?
3 business establishments had a location in this ZIP code in 2023 (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 57755?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 57650 | Ralph | 17 | – | 15.3 mi |
| 58653 | Scranton, ND | 700 | $86k | 18.6 mi |
| 58623 | Bowman, ND | 1,953 | $65k | 20.5 mi |
| 57720 | Buffalo | 518 | $79k | 25.6 mi |
| 57651 | Reva | 191 | $95k | 31.0 mi |
| 57649 | Prairie City | 273 | $85k | 35.6 mi |
| 58649 | Reeder, ND | 354 | $69k | 28.4 mi (near) |
| 57640 | Lodgepole | 41 | $250k+ | 31.7 mi (near) |
| 58651 | Rhame, ND | 513 | $76k | 33.0 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.