1
Enrollment
1,117
High
DISTRICT 1,218 · STATE 834
SCHOOL COMMUNITY·SPRINGFIELD SD 186·NCES 173708003829
Lanphier High School
1300 N 11th St, Springfield, IL 62702 · (217) 525-3080 · Sangamon County
GRADES 09–12HIGH12-CITYTITLE IREGULAR SCHOOL1,117 STUDENTS
Student : Teacher
14.3:1
78 FTE teachers
DISTRICT 15.4:1 · STATE 13.8:1
Free / Reduced Lunch
74%
829 students
DISTRICT 67% · STATE 56%
Community
5
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 412 | 37% |
| Grade 10 | 254 | 23% |
| Grade 11 | 229 | 21% |
| Grade 12 | 222 | 20% |
Student demographics
63%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 66% · STATE 69% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
BeatsExpectations
Demographically-adjusted score · methodologyTier
UNDERPERFORMING
Bottom 10% of IL schools after controlling for student poverty
Actual proficiency
14.8%
composite math + reading, all grades
Predicted
28.7%
based on IL schools with similar FRL share
Beats by
-13.9pp
below demographic expectation
What this means: About 15% of students here test proficient in math and reading, below the roughly 29% typical for Illinois schools with a similar share of low-income students. BeatsExpectations compares each school with others at the same poverty level, not by raw scores, so a school lands here when its results trail those comparable schools, which is not the same as having low scores. A higher-scoring school can still fall in this tier if similar schools score higher still.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Lanphier High School
Lanphier High School's state test result (14.8% proficient) is higher than 1 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Lanphier High School this school | 1,117 | 74.2% | 14.8% |
| Eisenhower High School Decatur | 909 | 76.7% | 12.8% |
| MacArthur High School Decatur | 1,059 | 73.0% | 15.8% |
| Springfield Southeast High School Springfield | 1,229 | 66.2% | 19.9% |
| Danville High School Danville | 1,253 | 82.9% | 19.1% |
| Auburn High School Rockford | 1,957 | 67.1% | 31.5% |
Matched among Illinois high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Lanphier High School ranks
Among high schools| Measure | This school | In Illinois | In Sangamon County |
|---|---|---|---|
| State test proficiency ranked highest first | 14.8% | #486 of 573 | #9 of 9 |
| Enrollment ranked largest first | 1,117 | #201 of 708 | #4 of 12 |
| Students per teacher ranked fewest first | 14.3:1 | #257 of 528 | #6 of 11 |
| Diversity index ranked most diverse first | 62.9% | #80 of 537 | #2 of 11 |
| Free and reduced lunch ranked highest share first | 74.2% | #136 of 578 | #1 of 9 |
| Enrollment change since 2017-18 ranked steepest decline first | -6.8% | #228 of 358 | #6 of 9 |
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
1,117
-19 (-2%) vs 2020
-16% since 1990-91, when it was 1,328
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 1,117 | 78.3 | 14.3:1 | 74% (829) |
| 2023-24 | 1,084 | 76.2 | 14.2:1 | 74% (800) |
| 2022-23 | 1,058 | 75.6 | 14.0:1 | 69% (730) |
| 2020-21 | 1,136 | N/A | N/A | N/A |
| 2017-18 | 1,199 | 76.6 | 15.7:1 | 76% (915) |
| 2015-16 | 1,240 | 76 | 16.3:1 | 65% (804) |
| 2010-11 | 1,229 | 89 | 13.8:1 | 67% (819) |
| 2000-01 | 1,326 | 71 | 18.7:1 | N/A |
| 1990-91 | 1,328 | 70 | 19.0:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Lanphier High School.
Since 2017-18: students down 7% (1,199 to 1,117); teachers up 2% (76.6 to 78.3).
About Lanphier High School
Lanphier High School runs as a medium-sized high school in Springfield, Illinois. It covers grades 9 through 12, with a total enrollment of 1,117 students. Statewide, high schools in Illinois average about 834 students each.
Across its 31 schools, Springfield SD 186 enrolls 13,014 students. Lanphier High School is one of those schools.
Enrollment at Lanphier High School is mixed, with Black students the largest group at 46%. It is also 38% White, 14% multiracial, and 2% Hispanic. For comparison, the population of Sangamon County is roughly 13% Black. By the diversity index, Lanphier High School comes in at 63%.
Lanphier High School operates with 78.3 full-time-equivalent teachers, a ratio of about 14.3:1. High schools in Illinois have a similar average ratio of 13.8:1. Lanphier High School reports 74% of students eligible for free or reduced-price meals. Compared with the 48% average for public schools in Sangamon County, the school's rate is higher.
The school's average proficiency rate on state tests, 14.8%, is 13.9 points below the 28.7% the model predicts from its free or reduced-price lunch share. That result is in the bottom 10% of Illinois schools.
Within Sangamon County, median household income is about $75,357, 37% of adults hold a bachelor's degree or higher, and about 9% of people live in poverty. The public schools of Sangamon County number 77 and enroll about 27,345.
The shortest distance from Lanphier High School to another public school is about 0.7 miles, to McClernand Elementary School. The five-mile area around Lanphier High School holds at least 8 other public schools. Among 9 nearby schools that report test results, Lanphier High School ranks 8th on proficiency.
Federal records code the school's setting as City: Mid-size.
Between 2020-21 and 2024-25, enrollment moved from 1,136 to 1,117, a small change.
Questions about science fairs, picture day, and bus routes can be posted here. Reviews and ratings from people who know the school are welcome.
Sangamon County at a glance
View full county profilePopulation
194,947
Census ACS
Median income
$75,357
Household, ACS
Bachelor's+
37%
Adults 25+
Poverty rate
9%
Below federal line
Schools in county
77
27,345 students
Quick facts
Related schools
Other schools in Springfield SD 186
- Springfield High SchoolHigh · 1,308 students
- Springfield Southeast High SchoolHigh · 1,229 students
- Benjamin Franklin Middle SchoolMiddle · 709 students
- Early Learning CenterElementary · 549 students
- Jefferson Middle SchoolMiddle · 517 students
- Washington Middle SchoolMiddle · 516 students
Other schools in Springfield
- Springfield High SchoolHigh · 1,308 students
- Springfield Southeast High SchoolHigh · 1,229 students
- Benjamin Franklin Middle SchoolMiddle · 709 students
- Early Learning CenterElementary · 549 students
- Jefferson Middle SchoolMiddle · 517 students
- Washington Middle SchoolMiddle · 516 students
Nearby schools
- McClernand Elementary School0.7 mi · 213
- Ridgely Elementary School0.8 mi · 343
- Fairview Elementary School0.8 mi · 302
- Enos Elementary School1.2 mi · 245
- Lincoln Magnet School1.3 mi · 300
- Wilcox Elementary School1.5 mi · 241
Frequently asked questions
About Lanphier High SchoolWhat is the total enrollment at Lanphier High School?
Lanphier High School enrolls approximately 1,117 students in grades 09-12.
What age range does Lanphier High School serve?
Lanphier High School serves students from grade 09 through grade 12.
How many students per teacher at Lanphier High School?
Approximately 14.3:1 students per teacher at Lanphier High School.
How diverse is Lanphier High School?
Lanphier High School reports a student body of 38% White, 2% Hispanic, 46% Black, 0% Asian, 14% Two or more.
Who oversees Lanphier High School?
Lanphier High School is overseen by Springfield SD 186 in Sangamon County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.