Residential delivery area · South Dakota
ZIP Code 57750: Interior, SD
ZIP code 57750 uses the postal name Interior, South Dakota and lies mostly in Jackson County (98% of its land) with the rest in Pennington County (Census 2020 ZIP-county file). About 370 people live there (Census Bureau, ACS 2020-2024). By Census place, under 1% of its land lies in Interior; more than 99% is outside any Census place.
- ACS2020-24
- Census2020
- ZBP2023
- IRS2022
- Town
- Interior · its only residential ZIP
- County
- Jackson County (98%); Pennington County (2%)
- Census places
- Interior
- House district
- SD at large 119th Congress
- State
- South Dakota
- Time zone
- Mountain
- Land area
- 325.2 sq mi · 1 person per sq mi
Where is ZIP code 57750?
57750 centers on 43.593°, -101.945° and covers 325.2 square miles of land plus 0.8 of water. It borders 7 ZIP codes: 57577, 57752, 57714, 57543, 57780, 57790, 57567.
The map draws ZIP code areas only. For the streets inside 57750, 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 57750 compare with the rest of Jackson County?
| Measure | 57750 | In Jackson County | In SD |
|---|---|---|---|
| People (ACS 2020-2024) | 365 | 10th of 12 | 242nd of 375 |
| Median household income | – | not ranked | not ranked |
| Median home value | $175k | not ranked | not ranked |
57750's income and home value are not ranked: it has fewer than 1,000 residents (365). 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 57750?
The 2020 Census counted 405 people in 57750; the ACS, which samples households over 2020-2024, estimates 365. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 365±143 (90% margin)
- 2020 Census count
- 405
- Households
- 115
- Median age
- 23.6
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 57750?
Of the 365 people the ACS estimates in 57750, 35.1% are under 18 and 7.9% are 65 or older. The largest group by race and Hispanic origin is Other or two or more (71.2%), then White (not Hispanic) (28.8%).
- Under 1835.1%
- 18 to 6457.0%
- 65 and older7.9%
- Other or two or more71.2%
- White, not Hispanic28.8%
- 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 are homes worth in 57750?
- Median home value (owners' estimate)
- $175,000
- Median gross rent
- $907
- Homes owned by their occupants
- 45.2%
- Housing units
- 166
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001).
What businesses are in 57750?
6 business establishments had a location in this ZIP code in 2023, the same count as in 2018; the most are in accommodation and food services (ZIP Code Business Patterns).
- Accommodation and food services4
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 57750?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 57577 | Wanblee | 940 | $21k | 15.3 mi |
| 57752 | Kyle | 1,553 | $83k | 17.1 mi |
| 57714 | Allen | 1,144 | – | 18.3 mi |
| 57543 | Kadoka | 721 | $36k | 23.7 mi |
| 57780 | Scenic | 70 | $40k | 29.3 mi |
| 57790 | Wall | 1,147 | $75k | 37.5 mi |
| 57567 | Philip | 1,056 | $59k | 39.2 mi |
| 57547 | Long Valley | 383 | $79k | 27.1 mi (near) |
| 57551 | Martin | 2,084 | $70k | 30.1 mi (near) |
| 57772 | Porcupine | 2,493 | $58k | 30.2 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.