Very Good
#85 of 571 private schools in WI
Top 15% of private schools
St John Xxiii Catholic School
Elementary School
1802 N WISCONSIN ST, Port Washington, WI 53074
Enrollment
134
Student-Teacher
8.6:1
Score
7.6
Grades
Pre-K – 8th
Enrollment
134
Student-Teacher
8.6:1
Score
7.6
Grades
Pre-K – 8th
Data vintage
2021-22
Data vintage2021-22
How this school compares
Wisconsin private schools
#85 of 571
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St John Xxiii Catholic School
Elementary School in Port Washington · grades Pre-K – 8th. Start here, then compare fit against nearby and district options.
Lincoln Elementary
0.5 mi away. Use as a geographic alternative in the same move search.
Thomas Jefferson Middle
0.6 mi away. Use as a geographic alternative in the same move search.
About St John Xxiii Catholic School
St John Xxiii Catholic School is a private elementary school in Port Washington, WI. St John Xxiii Catholic School serves approximately 134 students, and covers grades Pre-K-8th, and has a 8.6:1 student-teacher ratio. St John Xxiii Catholic School has a current MySchoolScout rating of 7.6 out of 10 and ranks #85 of 571 private schools in WI.
Structured state assessment records for St John Xxiii Catholic School show 64% math proficiency (2025 FORWARD) and 86% reading/ELA proficiency (2025 FORWARD).
- This school 7.6 · Very Good
- WI avg 6.8
What Parents Should Know
At 134 students, St John Xxiii Catholic School is on the smaller side. That usually buys more individual attention and teachers who know every kid by name, with the trade-off of fewer electives and extracurriculars than a larger school can staff. Ask what activities it actually offers.
At 8.6:1 students to teachers, St John Xxiii Catholic School sits well below the national average. Smaller classes like that usually mean more one-on-one time between students and teachers.
St John Xxiii Catholic School is private, so it runs independently of the local district and sets its own curriculum. That freedom cuts both ways depending on what you want for your child. If you're considering it, start with the practical questions: tuition, financial aid, and how admissions work.
Compare to Public Schools
BetaHow St John Xxiii Catholic School compares to the 4 public schools in Port Washington, WI
Student Demographics
All Schools in Port Washington
| School | Rating |
|---|---|
| St John Xxiii Catholic School (this school) | 7.6 |
| Lincoln Elementary | 9.0 |
| Thomas Jefferson Middle | 8.0 |
| Port Washington High | 5.5 |
| Dunwiddie Elementary | 9.1 |
Demographics sourced from NCES Private School Survey (PSS) and Common Core of Data (CCD). Comparisons are based on enrollment-weighted averages.
Score Breakdown
PreliminaryWhat This Rating Measures
This rating reflects classroom size, instructional time, student diversity, community resources, and school characteristics. Private schools are ranked against other private schools in WI.
Data Unavailable
View data sources
Score basis: Private school model
Data coverage: 80% of scoring components had data
Components scored: 4 of 5
Ranking pool: Private schools in WI
Test Scores WI FORWARD (2024-25)
Based on 2 test records from WI state assessments. About our data
Student Demographics NCES PSS (SY 2021-22)
Source: NCES Private School Survey (PSS)
Location
1802 N WISCONSIN ST, Port Washington, WI 53074
Nearby Alternatives
Families considering St John Xxiii Catholic School may also want to explore other elementary schools in the area. Dunwiddie Elementary (rated 9.1/10, 2.1 miles away), which scores notably higher. Another option is Lincoln Elementary (rated 9.0/10, 0.5 miles away), which scores notably higher. Additionally, Sugar Maple Nature School (rated 8.9/10, 8.0 miles away, in nearby Newburg), which scores notably higher. For more schools in Port Washington, see our Port Washington schools guide .
Nearby Schools
20 within 8.0 mi| School | Distance | Rating |
|---|---|---|
| Lincoln Elementary Port Washington | 0.5 mi | 9.0 |
| Thomas Jefferson Middle Port Washington | 0.6 mi | 8.0 |
| Port Washington High Port Washington | 1.4 mi | 5.5 |
| Dunwiddie Elementary Port Washington | 2.1 mi | 9.1 |
| Saukville Elementary Saukville | 3.9 mi | 8.3 |
| OUR SAVIOR LUTHERAN SCHOOL Grafton | 6.2 mi | 5.2 |
| Ozaukee Elementary Fredonia | 6.0 mi | 7.6 |
| Ozaukee High Fredonia | 6.0 mi | 5.7 |
| Ozaukee Middle Fredonia | 6.0 mi | 7.7 |
| Wisconsin Virtual Learning Fredonia | 6.0 mi | 5.2 |
| DIVINE SAVIOR CATHOLIC SCHOOL Fredonia | 5.8 mi | 7.1 |
| Grafton High Grafton | 7.0 mi | 6.5 |
| John Long Middle Grafton | 6.9 mi | 7.9 |
| Woodview Elementary Grafton | 6.9 mi | 8.8 |
| ST JOSEPH'S PARISH SCHOOL Grafton | 7.3 mi | 8.0 |
| ST JOSEPH PARISH SCHOOL Grafton | 7.3 mi | 7.5 |
| ST PAUL LUTHERAN SCHOOL Grafton | 7.6 mi | 6.4 |
| Kennedy Elementary Grafton | 7.8 mi | 8.2 |
| Thorson Elementary Cedarburg | 8.6 mi | 8.5 |
| Sugar Maple Nature School Newburg | 8.0 mi | 8.9 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 53074 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$78,944
Median Home Value
$276,200
Median Rent
$1,024/mo
Population
13,589
College Educated
35.8%
Homeownership
65%
Avg Commute
19.5 min
Poverty Rate
7.6%
Median Age
40.5
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Coon Valley Elementary Coon Valley, WI | 7.6 |
| Markesan Intermediate Markesan, WI | 7.6 |
| OUR REDEEMER LUTHERAN SCHOOL Wauwatosa, WI | 7.6 |
| ST PATRICK SCHOOL Onalaska, WI | 7.6 |
| ST VICTOR SCHOOL Monroe, WI | 7.6 |
| Tomorrow River Community Charter Amherst Junction, WI | 7.6 |
Frequently Asked Questions
Common questions about St John Xxiii Catholic School
What grades does St John Xxiii Catholic School serve?
St John Xxiii Catholic School serves students in grades Pre-K through 8th.
How many students attend St John Xxiii Catholic School?
St John Xxiii Catholic School has an enrollment of approximately 134 students.
What is the student-teacher ratio at St John Xxiii Catholic School?
The student-teacher ratio at St John Xxiii Catholic School is 8.6:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.
How does St John Xxiii Catholic School rank in WI?
St John Xxiii Catholic School ranks #85 of 571 private schools in WI.
What is St John Xxiii Catholic School's MySchoolScout rating?
St John Xxiii Catholic School has a current MySchoolScout rating of 7.6 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at St John Xxiii Catholic School?
Based on loaded state assessment records, St John Xxiii Catholic School has 64% math proficiency (2025 FORWARD) and 86% reading/ELA proficiency (2025 FORWARD).
Is St John Xxiii Catholic School a private school?
Yes, St John Xxiii Catholic School is a private coeducational school with a Roman Catholic affiliation. Private schools are not required to participate in state standardized testing, so academic performance data may be limited compared to public schools.
Is St John Xxiii Catholic School a religious school?
St John Xxiii Catholic School has a Roman Catholic religious affiliation.
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Neighborhood Context
Powered by 
Quick Facts NCES PSS (SY 2021-22)
- Grades
- Pre-K – 8th
- Enrollment
- 134
- Gender Split
- 43% M / 57% F
- Student-Teacher Ratio
- 8.6:1
- Teachers (FTE)
- 16
- Type
- private
- Coed Status
- coed
- Affiliation
- Roman Catholic
- School Day
- 6.7 hours
- Days Per Year
- 176 days
- Setting
- Large Suburb
- County
- Ozaukee County
- Phone
- (262) 284-2682
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