Random South Dakota Address Generator
These addresses are randomly generated for software testing. They are not real people’s details: the street number, unit and recipient name are invented, and no record is checked for deliverability.
Randomly generated South Dakota mailing addresses for software testing, form validation and staging data. Each record pairs a real South Dakota city with a ZIP prefix that serves it and the county that city sits in, then adds a street number, a secondary unit designator and a recipient name that are invented.
Official South Dakota Postal & Geographic Reference Specifications
| Geographic & Postal Parameter | Official State Specification | Standardization Reference |
|---|---|---|
| Postal State Abbreviation | SD | USPS Publication 28 & ISO 3166-2:US |
| 5-Digit ZIP Prefix Range | 570xx–577xx | USPS prefix-to-state assignment |
| Administrative Jurisdictions | 66 Total Counties | US Census Bureau regional boundaries |
| Active Area Codes (NANPA) | 605 (1 total) |
North American Numbering Plan Administrator |
| State Capital | Pierre | US Census Bureau |
| Primary Time Zone | Central Time (America/Chicago, UTC-6 / UTC-5 DST) | IANA time zone database |
South Dakota Postal Geography & Key Cities
ZIP codes and Sectional Center Facilities are derived from public USPS ZIP code data, area codes from the North American Numbering Plan, and county names from US Census Bureau records. Street numbers and recipient names are synthetic, and nothing is checked against an address-verification service.
Cities the generator draws from:
- Sioux Falls
- Rapid City
- Aberdeen
- Brookings
- Watertown
Key Counties & Administrative Jurisdictions
County boundaries determine local sales tax jurisdictions in South Dakota:
- Minnehaha County
- Pennington County
- Lincoln County
- Brown County
South Dakota Area Codes (SD)
Generated phone numbers use the area codes listed in the reference table above, paired with a 555 exchange so no number can reach a real line. Generate South Dakota phone numbers.
Postal Delivery Standards & Format Nuances in South Dakota
- Single statewide 605 area code with West River vs. East River geographic separation across the Missouri River.
- National hub for traveler and full-time RVer mail-forwarding addresses (e.g., Box Elder and Sioux Falls residency services) generating high-volume PMB / CMRA box numbers.
South Dakota Address Examples in USPS Publication 28 Format
Residential Delivery Point:100 Main St, Apt 4B
Sioux Falls, SD 57103-1204
Commercial / Multi-Unit Delivery Point:South Dakota Logistics & Software Corp
500 Enterprise Way, Suite 300
Rapid City, SD 57701-4810
Frequently Asked Questions about South Dakota Addresses
- What ZIP codes does South Dakota use for mail and package delivery?
South Dakota (SD) operates within the 5-digit ZIP prefix range 570xx–577xx. Mail routed to state capital Pierre and key regional centers such as Sioux Falls, Rapid City, Aberdeen adheres to these official USPS boundaries.
- Which telephone area codes are valid for South Dakota?
South Dakota is served by a single statewide area code: 605. Because South Dakota operates under a single numbering plan area (NPA), every valid South Dakota phone number begins with 605 — there are no regional sub-assignments to account for in test data. Synthetic telephone numbers generated for South Dakota use area code 605 with a 555 exchange, which is reserved for fictitious use.
- How many counties are in South Dakota?
South Dakota is divided into 66 counties, including major administrative regions such as Minnehaha, Pennington, Lincoln, Brown. Generated street addresses use those names.
- What postal formatting conventions and addressing quirks are unique to South Dakota?
Single statewide 605 area code with West River vs. East River geographic separation across the Missouri River. National hub for traveler and full-time RVer mail-forwarding addresses (e.g., Box Elder and Sioux Falls residency services) generating high-volume PMB / CMRA box numbers. All addresses generated on this platform format secondary unit designators (Apt, Ste, Fl) and street suffixes according to USPS CASS standards.
- Are the South Dakota addresses generated on this page real places?
No. All street numbers, recipient names, and telephone numbers generated for South Dakota are entirely synthetic and randomized for software testing, database seed scripts, and form validation. They use South Dakota ZIP codes from public USPS data and real city names, but they do not correspond to real individuals or private residences.
Nearby & Bordering States
Explore test address generators for states sharing a geographic border with SD:
- North Dakota Address Generator (ND)
- Minnesota Address Generator (MN)
- Iowa Address Generator (IA)
- Nebraska Address Generator (NE)
- Wyoming Address Generator (WY)
- Montana Address Generator (MT)
South Dakota ZIP Prefixes
The first three digits of a ZIP code place an address within South Dakota. These are the prefixes assigned to the state:
571xx, 577xx
Which processing facility sorts a given prefix is set by the current USPS labeling list L005 and changes as processing is consolidated, so it is not reproduced here. Look up a ZIP prefix to see its state and generate ZIP codes inside it.
Related Postal Tools & Technical Resources
- USA Address Generator & Developer Utility Hub
- Generate South Dakota Phone Numbers with Real Area Codes
- ZIP Code Lookup & Validation
- ZIP prefix lookup
- Synthetic Data vs. Real Data: Best Practices for Dev & Staging
All 51 state address generators, grouped by region.