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Best High Schools in Zip Code 51535

Coming soon: We're expecting this year's test scores from the Iowa Department of Education any day now — new rankings will be posted the moment they're released!

Coming soon: This year's test scores are expected from the Iowa Department of Education any day now — new rankings will follow the moment they're released!

At a glance

School

193

Students

Top rankedGriswold Middle/High School179^th of 340 Iowa high schools

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Summary:

The 51535 zip code in Iowa is home to a single high school, Griswold Middle/High School, which serves grades 6-12 and is part of the Griswold Community School District. This school stands out for its strong academic performance, with proficiency rates in English Language Arts, Mathematics, and Science often exceeding state averages.

Griswold Middle/High School boasts a 4-year graduation rate of 88.3% and a relatively low chronic absenteeism rate of 21.6%. The school's enrollment is 197 students, and it has a student-teacher ratio of 11.3 to 1. While the school's overall performance is impressive, there are a few areas that could be targeted for improvement, such as the Math proficiency rates for 10th and 11th grade, which are below the state average.

The school's high percentage of free/reduced lunch recipients (34.01%) suggests it serves a population with greater economic challenges, which is an important context to consider when evaluating its performance. The school's spending per student of $15,962 is higher than the state average, which may contribute to its strong academic outcomes. Overall, Griswold Middle/High School appears to be a well-performing school that is providing a quality education to its students.

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Ranking:

E Elementary M Middle H High A Alternative P Private

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Finance All

School													Students/Teachers											Ranking (2025)				Ranking (2024)				ISASP English Language Arts (2025)						ISASP Mathematics (2025)						ISASP Science (2025)		Per Pupil Expenditures (2019)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/Discounted Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	SchoolDigger Rating (2025)	Average Standard Score (2024)	Statewide Rank (2024)	State Percentile (2024)	Rank Change from Previous Year	ISASP English Language Arts 6th Grade	ISASP English Language Arts 7th Grade	ISASP English Language Arts 8th Grade	ISASP English Language Arts 9th Grade	ISASP English Language Arts 10th Grade	ISASP English Language Arts 11th Grade	ISASP Mathematics 6th Grade	ISASP Mathematics 7th Grade	ISASP Mathematics 8th Grade	ISASP Mathematics 9th Grade	ISASP Mathematics 10th Grade	ISASP Mathematics 11th Grade	ISASP Science 8th Grade	ISASP Science 10th Grade	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Griswold Middle/High School	Public	6-12	20 Madison St.	Griswold	51535	Cass County	Griswold Community School District	No	(n/a)	No	No	(712) 778-2154	193	16	11.9	36.3%	182 (94.3%)	1 (0.5%)	3 (1.6%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	7 (3.6%)	54.8	179^th of 340 public high schools	47.4%		70.7	89^th of 338 public high schools	73.7%	90	75.0	71.4	77.3	90.5	80.6	69.2	78.6	89.3	72.7	76.2	54.8	57.7	68.2	77.4	$15,962	$309	$15,653

Cities Near Zip Code 51535

City	Distance	# of Schools	Statewide Rank
Griswold	0.32 mi	2	267^th
Atlantic	13.12 mi	4	259^th
Oakland	13.9 mi	3	250^th
Carson	14.55 mi	1	329^th
Red Oak	15.4 mi	3	374^th

See the top IA Iowa cities

SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Iowa Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.