Total enrollment
3,514
-167 (-5%) vs SY 2020-21
Calhoun County
Texas · Public K-12
Calhoun County's public schools, 7 in all, serve approximately 3,514 K-12 students inside Texas, with Calhoun County ISD the largest district by enrollment. By level, that breaks down as 4 elementary, 1 middle, and 2 high schools.
4-year change in Calhoun County
SY 2020-21 vs SY 2024-25School count
7
0 (0%) vs SY 2020-21
Source: NCES Common Core of Data, enrollment-weighted demographic averages
How Calhoun County ranks
Among counties| Measure | This county | In Texas | In the US |
|---|---|---|---|
| State test proficiency ranked highest first | 50.7% | #44 of 192 | N/A |
| Enrollment ranked largest first | 3,514 | #121 of 196 | #1,678 of 2,745 |
| Number of schools ranked most first | 7 | #145 of 196 | N/A |
| Students per teacher ranked fewest first | 14.8:1 | #145 of 196 | #1,686 of 2,655 |
| Free or reduced-price lunch share ranked highest first | 65.7% | #69 of 196 | #874 of 2,526 |
| Diversity index ranked most diverse first | 47.4% | #128 of 192 | #1,209 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.
Residents
19,868
all ages · ACS 5-yr
Schools
7
1 districts
Enrollment
3,514
students · NCES CCD
Median income
$79,959
Above Texas avg
Free/reduced lunch
65.7%
Above Texas avg
Elementary
4
1,811 students
Middle
1
693 students
High
2
1,010 students
Combined / other
0
schools
LARGEST DISTRICT
CALHOUN COUNTY ISD
3,514 students · 1 district in Calhoun County
County vs. school enrollment demographics
Left bar is the racial makeup of Calhoun 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+
20.1%
adults 25+
Poverty rate
5.8%
ACS 5-year
Unemployment
7.4%
civilian labor
Median age
41
22.7% under 18
Test scores in Calhoun County
Latest 2025-26 ELA proficiency, 6 schools ranked. Texas state average: 55.6%.
Top 5 schools (ELA)
- PORT O CONNOR SCHOOL· 95.0%
- JACKSON/ROOSEVELT EL· 68.0%
- SEADRIFT SCHOOL· 64.0%
- CALHOUN H S· 56.0%
- HARRISON/JEFFERSON/MADISON EL· 55.0%
Lowest 5 schools (ELA)
- TRAVIS MIDDLE· 54.0%
- HARRISON/JEFFERSON/MADISON EL· 55.0%
- CALHOUN H S· 56.0%
- SEADRIFT SCHOOL· 64.0%
- JACKSON/ROOSEVELT EL· 68.0%
| Name | City | Level | Grades | Enrollment | Rating |
|---|---|---|---|---|---|
| CALHOUN H S | Port Lavaca | High | 09-12 | 989 | · |
| JACKSON/ROOSEVELT EL | Port Lavaca | Elementary | PK-05 | 836 | · |
| HARRISON/JEFFERSON/MADISON EL | Port Lavaca | Elementary | PK-05 | 709 | · |
| TRAVIS MIDDLE | Port Lavaca | Middle | 06-08 | 693 | · |
| SEADRIFT SCHOOL | Seadrift | Elementary | PK-08 | 202 | · |
| PORT O CONNOR SCHOOL | Port O'Connor | Elementary | PK-05 | 64 | · |
| HOPE H S | Port Lavaca | High | 10-12 | 21 | · |
Cities in Calhoun County
About Calhoun County
In Texas, Calhoun County is a sparse county of about 19,868 residents. 7 public schools across the county instructs about 3,514 students between them.
In context, census numbers show typical household earnings sit around $79,959, roughly 20% of adults have completed at least a four-year degree, and roughly 6% of residents live below the federal poverty line. That income level is 20% higher than the Texas median.
In terms of grade levels, Calhoun County is built around 4 elementary schools (1,811 students), 1 middle school (693), and 2 high schools (1,010).
CALHOUN COUNTY ISD is the biggest district by enrollment, covering about 3,514 students across Calhoun County.
Five-year track record. Across the same 4-year window, public-school enrollment fell 5%: 3,681 students in SY 2020-21 versus 3,514 in SY 2024-25.
Within the allk12 community for this area, the community for Calhoun County discusses enrollment trends, district policy changes, and bus-route updates. Posts come from current and former families, staff, and alumni.
Frequently asked questions
DATA · Census ACS 5-year · NCES Common Core of Data