| District | City | Rating | Students | Schools | Grades | Zip Codes |
|---|---|---|---|---|---|---|
| Dedham Public Schools | Holden | 10/10 Excellent · 96th pct | 202 | 1 | PK–12 | 1 |
| Regional School Unit 26 | Orono | 9/10 Excellent · 85th pct | 835 | 3 | PK–12 | 2 |
| Regional School Unit 22 | Hampden | 9/10 Excellent · 84th pct | 2,278 | 7 | PK–12 | 1 |
| Milford Public Schools | Milford | 8/10 Good · 73rd pct | 277 | 1 | PK–12 | 1 |
| School Administrative District 31 | Howland | 8/10 Good · 73rd pct | 435 | 3 | PK–12 | 3 |
| School Administrative District 63 | Eddington | 8/10 Good · 72nd pct | 557 | 3 | PK–12 | 1 |
| Orrington Public Schools | Orrington | 8/10 Good · 70th pct | 415 | 1 | PK–12 | 1 |
| Brewer Public Schools | Brewer | 7/10 Good · 69th pct | 1,604 | 2 | PK–12 | 1 |
| Bangor School Department | Bangor | 7/10 Good · 67th pct | 3,454 | 10 | PK–12 | 1 |
| School Administrative District 23 | Carmel | 5/10 Average · 46th pct | 591 | 3 | PK–12 | 2 |
| School Administrative District 30 | Lee | 5/10 Average · 42nd pct | 229 | 2 | PK–12 | 3 |
| School Administrative District 68 | Charleston | 5/10 Average · 41st pct | 992 | 2 | PK–12 | 1 |
| Regional School Unit 34 | Bradley | 4/10 Below Average · 37th pct | 1,434 | 5 | PK–12 | 3 |
| Regional School Unit 67 | Lincoln | 4/10 Below Average · 30th pct | 940 | 3 | PK–12 | 2 |
| School Administrative District 64 | Bradford | 3/10 Below Average · 27th pct | 1,067 | 3 | PK–12 | 5 |
| Regional School Unit 19 | Etna | 3/10 Below Average · 25th pct | 1,931 | 5 | PK–12 | 5 |
| School Administrative District 46 | Exeter | 3/10 Below Average · 23rd pct | 838 | 3 | PK–12 | 3 |
| East Millinocket Public Schools | East Millinocket | 2/10 Poor · 10th pct | 242 | 2 | PK–12 | 1 |
| Medway Public Schools | Medway | 2/10 Poor · 10th pct | 110 | 1 | K–12 | 1 |
| School Administrative District 41 | Lagrange | 1/10 Poor · 8th pct | 612 | 3 | PK–12 | 1 |
| Burlington Public Schools | Burlington | 1/10 Poor · 3rd pct | 1 | — | K–12 | 1 |
| Education in Unorganized Territory | Kingman | Not rated | 186 | 3 | PK–12 | 1 |
| Greenbush Public Schools | Greenbush | Not rated | 157 | 1 | PK–12 | 1 |
| Millinocket Public Schools | Millinocket | Not rated | 443 | 2 | PK–12 | 1 |
| Reed Plantation Public Schools | Lee | Not rated | 3 | — | K–12 | 0 |
| Regional School Unit 89 | Patten | Not rated | 305 | 2 | PK–12 | 2 |
How Penobscot County compares
Together they enroll 20,138 students across 71 schools. The largest is Bangor School Department with 3,454 students. Districts here average 5.3/10, below the Maine average of 5.5/10. Ratings range from 1/10 to 10/10. 5 of the 26 districts have no state assessment data and are shown as Not rated.
School Districts in Penobscot County, Maine
Penobscot County has 26 public school districts covering 45 zip codes. The top-rated district in Penobscot County is Dedham Public Schools (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 Maine. 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.
Frequently Asked Questions
How many school districts are in Penobscot County, ME?
26 school districts serve zip codes in Penobscot County, ME. This page lists each one with its rating, enrollment, grade span and the zip codes it covers.
What is the best-rated school district in Penobscot County, ME?
Of the districts serving Penobscot County, Dedham Public Schools has the highest rating on this site at 10/10. That places it in the 96th percentile among Maine school districts.
How are these school district ratings calculated?
Each rating is the share of students scoring proficient or above on Maine reading and math assessments, ranked against other districts in Maine and converted to a 1–10 scale. Percentiles compare districts within Maine only, never across state lines.