Total enrollment
9,619
+350 (+4%) vs SY 2020-21
Herkimer County
New York · Public K-12
New York's Herkimer County runs 25 public K-12 schools between its districts, the largest being Central Valley CSD at Ilion-Mohawk at 2,015 students. By grade band, the county runs 9 elementary, 4 middle, and 8 high schools.
4-year change in Herkimer County
SY 2020-21 vs SY 2024-25School count
25
0 (0%) vs SY 2020-21
Source: NCES Common Core of Data, enrollment-weighted demographic averages
How Herkimer County ranks
Among counties| Measure | This county | In New York | In the US |
|---|---|---|---|
| State test proficiency ranked highest first | 50.0% | #43 of 61 | N/A |
| Enrollment ranked largest first | 9,619 | #35 of 61 | #845 of 2,745 |
| Number of schools ranked most first | 25 | #33 of 61 | N/A |
| Students per teacher ranked fewest first | 10.7:1 | #34 of 61 | #230 of 2,655 |
| Free or reduced-price lunch share ranked highest first | 44.2% | #45 of 61 | #1,913 of 2,526 |
| Diversity index ranked most diverse first | 26.5% | #40 of 61 | #1,920 of 2,707 |
Counties need at least 3 schools and 1,000 students to be ranked. Test proficiency is ranked within the state only, since each state gives a different test. Each rank links to the full list.
Herkimer County school rankings
Residents
59,757
all ages · ACS 5-yr
Schools
25
12 districts
Enrollment
9,619
students · NCES CCD
Median income
$68,515
Below New York avg
Free/reduced lunch
44.2%
Below New York avg
Elementary
9
3,640 students
Middle
4
1,318 students
High
8
2,985 students
Combined / other
4
1,676 students
LARGEST DISTRICT
CENTRAL VALLEY CSD AT ILION-MOHAWK
2,015 students · 12 districts in Herkimer County
County vs. school enrollment demographics
Left bar is the racial makeup of Herkimer 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".
County residents
School enrollment
Bachelor's+
22.7%
adults 25+
Poverty rate
9.6%
ACS 5-year
Unemployment
4.3%
civilian labor
Median age
45
20.4% under 18
Test scores in Herkimer County
Latest 2024-25 ELA proficiency, 22 schools ranked. New York state average: 58.3%.
Top 5 schools (ELA)
Lowest 5 schools (ELA)
Cities in Herkimer County
About Herkimer County
Herkimer County is a low-population New York county of about 59,757 residents, home to 25 public schools and roughly 9,619 students.
Looking at the broader picture, census numbers show typical household earnings sit around $68,515, roughly 23% of adults have completed at least a four-year degree, and the federal-poverty share is near 10%. That income level is 12% noticeably below the New York median.
In terms of grade levels, Herkimer County is made up of 9 elementary schools (3,640 students), 4 middle schools (1,318), 8 high schools (2,985), and 4 combined or other schools.
CENTRAL VALLEY CSD AT ILION-MOHAWK is the biggest district by enrollment, covering about 2,015 students across Herkimer County.
Over the past 4-year window. Total public-school enrollment in Herkimer County has rose 4% since SY 2020-21, moving from about 9,269 students to 9,619.
In the discussion threads here, the community for Herkimer County discusses comparison threads between local schools and program reviews. Anyone with firsthand knowledge of these schools is welcome to weigh in.
Frequently asked questions
DATA · Census ACS 5-year · NCES Common Core of Data