Bennett County, South Dakota ZIP codes
3 ZIP codes are in Bennett County, plus 4 that cross in from neighboring counties.
- ZIP codes
- 3
- Population in these ZIPs
- 3,301
- Avg. median income
- $67,800population-weighted
- Cities & towns
- 3
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ZIP codes in Bennett County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 57551 | Martin | 2,084 | $70,096 | $179,300 |
| 57574 | Tuthill | 73 | $2,499 | $261,900 |
| 57714 | Allen | 1,144 | — | $111,600 |
ZIP codes partly in Bennett County
These ZIP codes are mostly in a neighboring county but cover part of Bennett County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 57560 | Norris | Mellette County | 391 | — | — |
| 57577 | Wanblee | Jackson County | 940 | $20,625 | — |
| 57716 | Batesland | Oglala Lakota County | 201 | — | — |
| 57752 | Kyle | Oglala Lakota County | 1,553 | $82,604 | — |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Bennett County
Nearby counties
Frequently asked questions
How many ZIP codes are in Bennett County, South Dakota?
3 ZIP codes are mainly in Bennett County, and 4 more ZIP codes from neighboring areas reach partly into it.
What cities are in Bennett County?
ZIP codes in Bennett County use the city names Allen, Martin and Tuthill.