State of Washington Graduation Toolkit outlines requirements.
 
Highline Public Schools has established graduation requirements that include 23 credits as shown below. For a full description and explanation of Graduation Requirements, please refer to School Board Policy # 2410.
 
For freshman class of 2007-09 (graduating classes of 2011 and 2012)​ For freshman class of 2009-11 (graduating classes of 2013-2015)​ For freshman class of 2012 and beyond (graduating classes of 2016 and beyond)​
English 3.5 credits
Mathematics 3.0 credits
Social Studies 3.0 credits
Science 2.0 credits
(1 credit in laboratory science)
Occupational Education 1.0 credit
Health and Fitness 2.0 credits
Arts 1.0 credit
Electives 7.5 credits
TOTAL CREDITS 23.0
 English 4.0 credits
Mathematics 3.0 credits
Social Studies 3.0 credits
Science 2.0 credits
(1 credit in laboratory science)
Occupational Education 1.0 credit
Health / Fitness 2.0 credits
Arts 1.0 credit
Electives 7.0 credits
TOTAL CREDITS 23.0
 English 4.0 credits
Mathematics 3.0 credits
Social Studies 3.0 credits
Science 2.0 credits
(1 credit in laboratory science)
Occupational Education 1.0 credit
Health 0.5 credits
Fitness 1.5 credits
Arts 1.0 credit
Electives 7.0 credits
TOTAL CREDITS 23.0
 
State Board of Education Requirements (minimum)
English (reading, writing, and communications)
3 credits
Mathematics  ​
3 credits
Science (physical, life and earth; one laboratory credit) 
2 credits
Social Studies (civics, history, and geography) ​
2.5 credits
Health and Fitness ​
2 credits
Arts​
1 credit
Occupational Education ​
1 credit
Electives​
5.5 credits
TOTAL​ 20 credits
 
 Aviation High School
AHS has graduation requirements unique to that school. 
 
 
Subject​ State​ District​ AHS​

University

Admission​

English 3.0 3.5​ 4.0​ 4.0​
Math​ 2.0​ 3.0​

3.0

(through Alg 2)​

3.0

(w/o gaps)​

Science

(1.0 lab)​

2.0

(2.0 lab in 2010)​

2.0​ 3.0​

2.0

(3.0 in 2010)​

Social Studies​ 2.5​ 3.0​ 3.0​ 3.0​
World Language​ 0.0​ 0.0​

2.0

(In same Language)​

2.0

(In same Language)​

Fine Arts​ 1.0​ 1.0​ 1.0​ 1.0​
Fitness/Health​

2.0

(1.5 PE + 0.5 Health)​

2.0​ 2.0​ 0.0​
Electives​ 5.5​ 7.5​ 4.0​

5.5

(Min 1 academic)​

Totals​ 19.0​ 23.0​ 23.0​ 20.5