Sullivan County
Public K-12 schools in Sullivan County number 20, teaching approximately 9,164 New York students against a population of 79,721. By grade band, the county runs 9 elementary, 2 middle, and 7 high schools.
7-year change in Sullivan County
SY 2017-18 vs SY 2024-25County vs. school enrollment demographics
Left bar is the racial makeup of Sullivan County residents (Census ACS 5-year). Right bar is the enrollment-weighted makeup of public schools in the county (NCES CCD). NCES systematically under-reports Hispanic, Pacific Islander, and Native American enrollment for many schools; where the resident share is meaningful but the reported school share is zero, we mark the school bar "not reported".
Test scores in Sullivan County
Latest 2024-25 ELA proficiency, 18 schools ranked. New York state average: 58.3%.
- ROBERT J KAISER MIDDLE SCHOOL· 18.0%
- KENNETH L RUTHERFORD SCHOOL· 24.0%
- BENJAMIN COSOR ELEMENTARY SCHOOL· 26.0%
- LIBERTY MIDDLE SCHOOL· 29.0%
- LIBERTY ELEMENTARY SCHOOL· 35.0%
| Name | City | Level | Grades | Enrollment | Rating |
|---|---|---|---|---|---|
| BENJAMIN COSOR ELEMENTARY SCHOOL | Fallsburg | Elementary | PK-06 | 841 | · |
| MONTICELLO HIGH SCHOOL | Monticello | High | 09-12 | 833 | · |
| LIBERTY ELEMENTARY SCHOOL | Liberty | Elementary | PK-04 | 664 | · |
| FALLSBURG JUNIOR SENIOR HIGH SCHOOL | Fallsburg | High | 07-12 | 663 | · |
| GEORGE L COOKE SCHOOL | Monticello | Elementary | PK-02 | 590 | · |
| ROBERT J KAISER MIDDLE SCHOOL | Monticello | Middle | 06-08 | 587 | · |
| LIBERTY HIGH SCHOOL | Liberty | High | 09-12 | 578 | · |
| SULLIVAN WEST ELEMENTARY SCHOOL | Jeffersonville | Elementary | PK-06 | 553 | · |
| LIBERTY MIDDLE SCHOOL | Liberty | Middle | 05-08 | 516 | · |
| SULLIVAN WEST HIGH SCHOOL AT LAKE HUNTINGTON | Lake Huntington | High | 07-12 | 492 | · |
| TRI-VALLEY ELEMENTARY SCHOOL | Grahamsville | Elementary | PK-06 | 471 | · |
| KENNETH L RUTHERFORD SCHOOL | Monticello | Elementary | 03-05 | 466 | · |
| TRI-VALLEY SECONDARY SCHOOL | Grahamsville | High | 07-12 | 408 | · |
| GEORGE ROSS MACKENZIE ELEMENTARY SCHOOL | Glen Spey | Elementary | PK-06 | 240 | · |
| SULLIVAN BOCES | Liberty | Combined | KG-12 | 238 | · |
| EMMA C CHASE SCHOOL | Wurtsboro | Elementary | KG-05 | 219 | · |
| LIVINGSTON MANOR ELEMENTARY SCHOOL | Livingston Manor | Elementary | PK-06 | 217 | · |
| ELDRED JUNIOR-SENIOR HIGH SCHOOL | Eldred | High | 07-12 | 214 | · |
| ROSCOE CENTRAL SCHOOL | Roscoe | Combined | PK-12 | 193 | · |
| LIVINGSTON MANOR HIGH SCHOOL | Livingston Manor | High | 07-12 | 181 | · |
Cities in Sullivan County
About Sullivan County
Sullivan County is a middle-population county of about 79,721 residents in New York. Its public-school system educates approximately 9,164 students across 20 schools.
Looking at the wider area, census numbers show the median household earns about $72,382 a year, 30% of adults hold a bachelor's degree or higher, and the poverty rate is around 10%. That income level is 7% meaningfully below the New York median.
Looking at the level breakdown, Sullivan County covers 9 elementary schools (4,261 students), 2 middle schools (1,103), 7 high schools (3,369), and 2 combined or other schools.
The largest single district in Sullivan County is MONTICELLO CENTRAL SCHOOL DISTRICT, which alone enrolls about 2,695 students.
Five-year track record. Total public-school enrollment in Sullivan County has declined 4% since SY 2017-18, moving from about 9,523 students to 9,164. Sullivan County now counts 20 public schools, up from 19 in SY 2017-18. Demographically, the Hispanic share of enrollment expanded from 27% to 39%.
On this page, the community for Sullivan County discusses open enrollment windows, redistricting talk, and busing logistics. Members of the local community share what they see day-to-day.