Districts in Dewey County1 districts, sorted by rating
| District | City | Rating | Zip Codes |
|---|---|---|---|
| Timber Lake School District 20-3 | Mobridge | 10/10 Excellent · 92nd pct | 5 |
School Districts in Dewey County, South Dakota
Dewey County has 1 public school district covering 5 zip codes. The top-rated district in Dewey County is Timber Lake School District 20-3 (10/10). Ratings are based on the share of students proficient in reading and math on state assessments (NCES EDFacts, 2021–22 for most districts), ranked against all districts in South Dakota. Directory details come from NCES CCD 2024–25.
Enter your zip code on any page to confirm your exact district assignment — district boundaries are address-specific and may not follow county or city lines.