First three digits · South Dakota
ZIP Codes Starting with
58 ZIP codes start with 577, sorted at the Rapid City, SD (SCF 577) sectional center (USPS labeling list L005, effective October 1, 2026) in South Dakota: 57 residential ZIP codes across 10 counties and 1 PO Box or single-organization code (Census 2020 ZCTAs and GeoNames postal codes, October 2026).
What do the digits 577 mean?
The first digit, 5, is one of ten national areas (Iowa, Minnesota, Montana, North Dakota, South Dakota and Wisconsin). The first three, 577, route mail to a sectional center: USPS labeling list L005 (effective October 1, 2026) sends letters for 577 to the Rapid City, SD (SCF 577) facility. The last two digits pick the delivery area. By residents, the largest town names among the 577 ZIP codes are Rapid City, Spearfish, Box Elder, Sturgis, Belle Fourche and Black Hawk.
577 is the only prefix the Rapid City, SD (SCF 577) facility sorts.
Where are the 577 ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All ZIP codes starting with 577
| County | ||||||
|---|---|---|---|---|---|---|
| 57701 | Rapid City | Pennington County | 45,795 | 877 | $57k | $251k |
| 57702 | Rapid City | Pennington County | 35,595 | 125 | $92k | $390k |
| 57703 | Rapid City | Pennington County | 18,013 | 139 | $84k | $277k |
| 57706 | Ellsworth Afb | Meade County | 2,787 | 454 | $57k | – |
| 57709 | Rapid City | Pennington County | PO Box or unique | – | – | – |
| 57714 | Allen | Bennett County | 1,144 | 7 | – | $112k |
| 57716 | Batesland | Oglala Lakota County | 201 | 1 | – | – |
| 57717 | Belle Fourche | Butte County | 8,983 | 7 | $78k | $249k |
| 57718 | Black Hawk | Meade County | 7,937 | 299 | $84k | $300k |
| 57719 | Box Elder | Meade County | 12,221 | 73 | $75k | $317k |
| 57720 | Buffalo | Harding County | 518 | 0 | $79k | $157k |
| 57722 | Buffalo Gap | Oglala Lakota County | 177 | 0 | $59k | $69k |
| 57724 | Camp Crook | Harding County | 167 | 0 | $61k | – |
| 57725 | Caputa | Pennington County | 130 | 1 | $48k | $283k |
| 57730 | Custer | Custer County | 5,596 | 11 | $84k | $379k |
| 57732 | Deadwood | Lawrence County | 1,714 | 14 | $44k | $232k |
| 57735 | Edgemont | Fall River County | 1,727 | 2 | $72k | $166k |
| 57737 | Enning | Meade County | 77 | 1 | – | – |
| 57738 | Fairburn | Custer County | 356 | 2 | $52k | – |
| 57741 | Fort Meade | Meade County | 141 | 860 | – | – |
| 57744 | Hermosa | Custer County | 2,421 | 5 | $106k | $387k |
| 57745 | Hill City | Pennington County | 1,894 | 5 | $88k | $344k |
| 57747 | Hot Springs | Fall River County | 5,839 | 11 | $68k | $221k |
| 57748 | Howes | Meade County | 369 | 1 | – | $241k |
| 57750 | Interior | Jackson County | 365 | 1 | – | $175k |
| 57751 | Keystone | Pennington County | 893 | 20 | $98k | $474k |
| 57752 | Kyle | Oglala Lakota County | 1,553 | 4 | $83k | – |
| 57754 | Lead | Lawrence County | 3,749 | 14 | $66k | $218k |
| 57755 | Ludlow | Harding County | 101 | 0 | $68k | $164k |
| 57756 | Manderson | Oglala Lakota County | 1,089 | 16 | – | – |
| 57758 | Mud Butte | Meade County | 35 | 0 | – | – |
| 57759 | Nemo | Lawrence County | 398 | 7 | $76k | $556k |
| 57760 | Newell | Butte County | 966 | 1 | $65k | $162k |
| 57761 | New Underwood | Meade County | 1,180 | 3 | $98k | $253k |
| 57762 | Nisland | Butte County | 512 | 5 | $68k | $154k |
| 57763 | Oelrichs | Fall River County | 356 | 1 | $74k | $123k |
| 57764 | Oglala | Oglala Lakota County | 1,416 | 5 | $22k | – |
| 57766 | Oral | Fall River County | 176 | 1 | $96k | – |
| 57767 | Owanka | Meade County | 234 | 2 | $250k+ | – |
| 57769 | Piedmont | Meade County | 4,029 | 30 | $94k | $367k |
| 57770 | Pine Ridge | Oglala Lakota County | 5,483 | 28 | $52k | $58k |
| 57772 | Porcupine | Oglala Lakota County | 2,493 | 5 | $58k | – |
| 57773 | Pringle | Custer County | 206 | 34 | – | – |
| 57775 | Quinn | Pennington County | 191 | 1 | $78k | $88k |
| 57776 | Redig | Harding County | no residents | 0 | – | – |
| 57779 | Saint Onge | Lawrence County | 347 | 8 | – | $286k |
| 57780 | Scenic | Pennington County | 70 | 0 | $40k | – |
| 57782 | Smithwick | Fall River County | 58 | 1 | $66k | $271k |
| 57783 | Spearfish | Lawrence County | 17,248 | 81 | $75k | $373k |
| 57785 | Sturgis | Meade County | 10,874 | 19 | $64k | $296k |
| 57787 | Union Center | Meade County | 487 | 1 | $54k | $62k |
| 57788 | Vale | Butte County | 598 | 2 | $85k | $260k |
| 57790 | Wall | Pennington County | 1,147 | 2 | $75k | $188k |
| 57791 | Wasta | Meade County | 97 | 0 | $42k | $113k |
| 57792 | White Owl | Meade County | 114 | 1 | $104k | – |
| 57793 | Whitewood | Lawrence County | 2,173 | 14 | $87k | $369k |
| 57794 | Wounded Knee | Oglala Lakota County | 1,191 | 23 | – | – |
| 57799 | Spearfish | Lawrence County | 568 | 3,021 | – | – |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; GeoNames postal codes (CC BY 4.0) for codes without a residential area.