Total enrollment
2,124
-215 (-9%) vs SY 2017-18
Mason County
Illinois · Public K-12
Mason County operates 9 public K-12 schools inside Illinois, with combined enrollment of approximately 2,124 (about 236 students per school). By grade band, the county runs 4 elementary, 2 middle, and 3 high schools.
7-year change in Mason County
SY 2017-18 vs SY 2024-25School count
9
0 (0%) vs SY 2017-18
% White
94%
was 96%
% Hispanic
2%
was 1%
% Black
1%
was 1%
% Asian
0%
was 0%
Source: NCES Common Core of Data, enrollment-weighted demographic averages
Schools
9
3 districts
Enrollment
2,124
NCES CCD
Median income
$62,845
Below Illinois avg
Free/reduced lunch
51.3%
Above Illinois avg
Elementary
4
1,045 students
Middle
2
423 students
High
3
656 students
Combined / other
0
schools
LARGEST DISTRICT
Havana CUSD 126
819 students · 3 districts in Mason County
County vs. school enrollment demographics
Left bar is the racial makeup of Mason 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+
17.1%
adults 25+
Poverty rate
10.8%
ACS 5-year
Unemployment
4.9%
civilian labor
Median age
45
20.8% under 18
Test scores in Mason County
Latest 2024-25 ELA proficiency, 5 schools ranked. Illinois state average: 51.0%.
Top 5 schools (ELA)
- Havana Jr High School· 57.0%
- Midwest Central Primary School· 55.6%
- Illini Central Middle School· 54.0%
- New Central Elem School· 45.8%
- Illini Central Grade School· 30.8%
| Name | City | Level | Grades | Enrollment | Rating |
|---|---|---|---|---|---|
| Midwest Central Primary School | Manito | Elementary | PK-05 | 430 | · |
| New Central Elem School | Havana | Elementary | KG-04 | 286 | · |
| Havana Jr High School | Havana | Middle | 05-08 | 284 | · |
| Illini Central Grade School | Mason City | Elementary | KG-05 | 264 | · |
| Havana High School | Havana | High | 09-12 | 249 | · |
| Midwest Central High School | Manito | High | 09-12 | 235 | · |
| Illini Central High School | Mason City | High | 09-12 | 172 | · |
| Illini Central Middle School | Mason City | Middle | 06-08 | 139 | · |
| West Campus Facility | Mason City | Elementary | PK-PK | 65 | · |
Cities in Mason County
About Mason County
In Illinois, Mason County is a rural-scale county of about 12,745 residents. 9 public schools across the county teaches about 2,124 students between them.
Zooming out, census numbers show typical household earnings sit around $62,845, about 17% of adults have a bachelor's degree or above, and the poverty rate is around 11%. That income level is 11% lower than the Illinois median.
Looking at the level breakdown, Mason County comprises 4 elementary schools (1,045 students), 2 middle schools (423), and 3 high schools (656).
Havana CUSD 126 dominates the local landscape, accounting for roughly 819 students on its own.
Over the past 7-year window. Combined enrollment now sits at 2,124 students, fell 9% from the 2,339 reported in SY 2017-18.
On allk12, the community for Mason County discusses school events, board meetings, and seasonal calendars. Discussions cut across districts, schools, and grade levels.
Frequently asked questions
Mason County school rankings
DATA · Census ACS 5-year · NCES Common Core of Data