Table 232.60.

Percentage of public school students in grades 9-12 who reported using marijuana at least one time during the previous 30 days, by location and state or jurisdiction: Selected years, 2005 through 2017

[Standard errors appear in parentheses]
State or jurisdiction	Anywhere (including on school property)1														On school property2
	2005		2007		2009		2011		2013		2015		2017		2005		2007			2009		2011		2013		2015		2017
1	2		3		4		5		6		7		8		9		10			11		12		13		14		15
United States3	20.2	(0.84)	19.7	(0.97)	20.8	(0.70)	23.1	(0.80)	23.4	(1.08)	21.7	(1.22)	19.8	(0.84)	4.5	(0.32)	4.5		(0.46)	4.6	(0.35)	5.9	(0.39)	—	(†)	—	(†)	—	(†)
Alabama	18.5	(1.49)	—	(†)	16.2	(1.28)	20.8	(1.62)	19.2	(1.46)	17.3	(1.08)	—	(†)	3.5	(0.80)	—		(†)	4.6	(0.81)	4.0	(0.68)	—	(†)	—	(†)	—	(†)
Alaska	—	(†)	20.5	(1.47)	22.7	(1.65)	21.2	(1.68)	19.7	(1.35)	19.0	(1.15)	21.5	(1.42)	—	(†)	5.9		(0.70)	5.9	(0.69)	4.3	(0.59)	—	(†)	—	(†)	—	(†)
Arizona	20.0	(1.08)	22.0	(1.38)	23.7	(1.90)	22.9	(1.59)	23.5	(1.75)	23.3	(1.98)	19.5	(2.00)	5.1	(0.63)	6.1		(0.68)	6.4	(0.74)	5.6	(0.75)	—	(†)	—	(†)	—	(†)
Arkansas	18.9	(1.70)	16.4	(1.08)	17.8	(1.24)	16.8	(1.72)	19.0	(0.98)	17.8	(0.95)	14.7	(1.49)	4.1	(0.61)	2.8		(0.50)	4.5	(1.02)	3.9	(0.78)	—	(†)	—	(†)	—	(†)
California	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	22.9	(2.19)	21.8	(1.92)	—	(†)	—		(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)
Colorado	22.7	(2.99)	—	(†)	24.8	(2.22)	22.0	(1.16)	—	(†)	—	(†)	19.6	(1.78)	6.0	(0.88)	—		(†)	6.1	(0.89)	6.0	(0.77)	—	(†)	—	(†)	—	(†)
Connecticut	23.1	(1.37)	23.2	(1.35)	21.8	(1.52)	24.2	(1.44)	26.1	(1.44)	20.4	(1.41)	20.4	(1.16)	5.1	(0.49)	5.9		(0.77)	6.2	(0.76)	5.2	(0.68)	—	(†)	—	(†)	—	(†)
Delaware	22.8	(1.12)	25.1	(1.03)	25.8	(1.30)	27.6	(1.37)	25.6	(1.17)	23.3	(1.61)	26.1	(1.38)	5.6	(0.57)	5.4		(0.53)	5.6	(0.71)	6.1	(0.65)	—	(†)	—	(†)	—	(†)
District of Columbia	14.5	(1.08)	20.8	(1.33)	—	(†)	26.1	(1.29)	32.2	(0.58)	28.7	(0.48)	33.0	(0.58)	4.8	(0.62)	5.8		(0.66)	—	(†)	7.9	(0.91)	—	(†)	—	(†)	—	(†)
Florida	16.8	(0.86)	18.9	(0.88)	21.4	(0.72)	22.5	(0.86)	22.0	(0.81)	21.5	(0.79)	20.2	(0.70)	4.0	(0.31)	4.7		(0.40)	5.2	(0.39)	6.3	(0.39)	—	(†)	—	(†)	—	(†)
Georgia	18.9	(1.59)	19.6	(0.96)	18.3	(1.02)	21.2	(1.23)	20.3	(1.64)	—	(†)	—	(†)	3.3	(0.58)	3.6		(0.58)	3.4	(0.62)	5.6	(0.70)	—	(†)	—	(†)	—	(†)
Hawaii	17.2	(1.73)	15.7	(1.78)	22.1	(2.03)	22.0	(1.32)	18.9	(1.54)	19.4	(0.98)	18.1	(1.07)	7.2	(1.14)	5.7		(0.85)	8.3	(1.86)	7.6	(0.67)	—	(†)	—	(†)	—	(†)
Idaho	17.1	(1.32)	17.9	(1.73)	13.7	(1.07)	18.8	(1.76)	15.3	(1.10)	17.1	(1.55)	16.2	(1.43)	3.9	(0.61)	4.7		(0.80)	3.0	(0.44)	4.9	(0.73)	—	(†)	—	(†)	—	(†)
Illinois	—	(†)	20.3	(1.38)	21.0	(1.53)	23.1	(1.59)	24.0	(1.70)	18.7	(1.47)	20.8	(1.90)	—	(†)	4.2		(0.76)	5.0	(0.77)	4.7	(0.50)	—	(†)	—	(†)	—	(†)
Indiana	18.9	(1.38)	18.9	(1.19)	20.9	(1.83)	20.0	(1.13)	—	(†)	16.4	(1.17)	—	(†)	3.4	(0.57)	4.1		(0.45)	4.4	(0.62)	3.3	(0.66)	—	(†)	—	(†)	—	(†)
Iowa	15.6	(1.74)	11.5	(1.53)	—	(†)	14.6	(1.99)	—	(†)	—	(†)	13.2	(1.80)	2.7	(0.64)	2.5		(0.66)	—	(†)	3.4	(0.88)	—	(†)	—	(†)	—	(†)
Kansas	15.6	(1.46)	15.3	(0.93)	14.7	(1.19)	16.8	(0.87)	14.3	(1.19)	—	(†)	13.5	(0.87)	3.2	(0.51)	3.8		(0.53)	2.7	(0.35)	2.9	(0.53)	—	(†)	—	(†)	—	(†)
Kentucky	15.8	(1.19)	16.4	(1.07)	16.1	(1.15)	19.2	(1.47)	17.7	(1.50)	17.2	(1.34)	15.8	(1.41)	3.2	(0.45)	3.9		(0.44)	3.1	(0.54)	4.2	(0.65)	—	(†)	—	(†)	—	(†)
Louisiana	—	(†)	—	(†)	16.3	(1.29)	16.8	(1.02)	17.5	(1.38)	—	(†)	18.8	(2.00)	—	(†)	—		(†)	3.6	(0.89)	4.1	(0.59)	—	(†)	—	(†)	—	(†)
Maine	22.2	(2.13)	22.0	(1.55)	20.5	(0.57)	21.2	(0.72)	21.3	(0.89)	19.9	(0.58)	18.8	(0.74)	4.6	(0.72)	5.2		(0.65)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)
Maryland	18.5	(2.25)	19.4	(1.91)	21.9	(1.57)	23.2	(1.51)	19.8	(0.36)	18.8	(0.32)	18.4	(0.34)	3.7	(0.82)	4.7		(1.13)	5.0	(0.65)	5.7	(0.70)	—	(†)	—	(†)	—	(†)
Massachusetts	26.2	(1.22)	24.6	(1.43)	27.1	(1.24)	27.9	(1.31)	24.8	(0.92)	24.5	(1.42)	24.1	(1.40)	5.3	(0.54)	4.8		(0.44)	5.9	(0.79)	6.3	(0.51)	—	(†)	—	(†)	—	(†)
Michigan	18.8	(1.29)	18.0	(1.10)	20.7	(0.91)	18.6	(1.15)	18.2	(0.73)	19.3	(1.51)	23.7	(2.42)	3.7	(0.50)	4.0		(0.57)	4.8	(0.59)	3.3	(0.44)	—	(†)	—	(†)	—	(†)
Minnesota	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—		(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)
Mississippi	—	(†)	16.7	(1.02)	17.7	(1.21)	17.5	(1.18)	17.7	(1.28)	19.7	(1.24)	—	(†)	—	(†)	2.7		(0.35)	2.5	(0.46)	3.2	(0.58)	—	(†)	—	(†)	—	(†)
Missouri	18.1	(2.23)	19.0	(1.23)	20.6	(2.02)	—	(†)	20.5	(1.69)	16.3	(1.34)	19.9	(1.54)	4.0	(0.82)	3.6		(0.63)	3.4	(0.48)	—	(†)	—	(†)	—	(†)	—	(†)
Montana	22.3	(1.43)	21.0	(1.44)	23.1	(1.58)	21.2	(1.50)	21.0	(1.18)	19.5	(1.10)	19.8	(0.95)	6.1	(0.70)	5.0		(0.49)	5.8	(0.67)	5.5	(0.59)	—	(†)	—	(†)	—	(†)
Nebraska	17.5	(1.05)	—	(†)	—	(†)	12.7	(1.06)	11.7	(1.10)	13.7	(1.60)	13.4	(1.36)	3.1	(0.41)	—		(†)	—	(†)	2.7	(0.43)	—	(†)	—	(†)	—	(†)
Nevada	17.3	(1.34)	15.5	(1.07)	20.0	(1.36)	—	(†)	18.7	(1.57)	19.3	(1.50)	17.9	(1.44)	5.7	(0.81)	3.6		(0.55)	4.9	(0.53)	—	(†)	—	(†)	—	(†)	—	(†)
New Hampshire	25.9	(1.69)	22.9	(1.39)	25.6	(1.86)	28.4	(1.82)	24.4	(1.36)	22.2	(0.76)	23.1	(0.68)	—	(†)	4.7		(0.64)	6.8	(0.78)	7.3	(0.87)	—	(†)	—	(†)	—	(†)
New Jersey	19.9	(2.18)	—	(†)	20.3	(1.53)	21.1	(1.33)	21.0	(1.20)	—	(†)	—	(†)	3.4	(0.67)	—		(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)
New Mexico	26.2	(2.00)	25.0	(2.07)	28.0	(1.52)	27.6	(1.58)	27.8	(1.70)	25.3	(0.88)	27.3	(1.68)	8.4	(0.98)	7.9		(0.86)	9.7	(1.06)	9.7	(0.84)	—	(†)	—	(†)	—	(†)
New York	18.3	(1.13)	18.6	(0.78)	20.9	(1.32)	20.6	(1.07)	21.4	(1.04)	19.3	(1.23)	18.4	(0.93)	3.6	(0.41)	4.1		(0.44)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)
North Carolina	21.4	(1.61)	19.1	(1.27)	19.8	(1.67)	24.2	(1.25)	23.2	(1.83)	22.3	(1.15)	19.3	(1.53)	4.1	(0.65)	4.3		(0.54)	4.0	(0.63)	5.2	(0.91)	—	(†)	—	(†)	—	(†)
North Dakota	15.5	(1.62)	14.8	(1.18)	16.9	(1.55)	15.3	(1.52)	15.9	(1.26)	15.2	(1.12)	15.5	(1.12)	4.0	(0.71)	2.7		(0.43)	3.8	(0.59)	3.4	(0.45)	—	(†)	—	(†)	—	(†)
Ohio4	20.9	(1.79)	17.7	(1.50)	—	(†)	23.6	(1.95)	20.7	(2.30)	—	(†)	—	(†)	4.3	(0.62)	3.7		(0.67)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)
Oklahoma	18.7	(1.12)	15.9	(1.37)	17.2	(2.04)	19.1	(1.90)	16.3	(1.57)	17.5	(1.79)	15.9	(1.74)	3.0	(0.38)	2.6		(0.40)	2.9	(0.70)	2.4	(0.58)	—	(†)	—	(†)	—	(†)
Oregon	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—		(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)
Pennsylvania	—	(†)	—	(†)	19.3	(1.43)	—	(†)	—	(†)	18.2	(1.17)	17.7	(1.18)	—	(†)	—		(†)	3.5	(0.58)	—	(†)	—	(†)	—	(†)	—	(†)
Rhode Island	25.0	(1.16)	23.2	(1.85)	26.3	(1.33)	26.3	(1.35)	23.9	(1.92)	23.6	(0.73)	23.3	(1.21)	7.2	(0.65)	6.5		(0.93)	5.1	(0.60)	—	(†)	—	(†)	—	(†)	—	(†)
South Carolina	19.0	(1.24)	18.6	(1.44)	20.4	(1.56)	24.1	(1.99)	19.7	(1.22)	17.8	(1.70)	18.6	(1.38)	4.6	(0.64)	3.3		(0.52)	3.7	(0.63)	5.2	(0.75)	—	(†)	—	(†)	—	(†)
South Dakota5	16.8	(1.87)	17.7	(3.72)	15.2	(1.36)	17.8	(3.57)	16.1	(3.01)	12.4	(2.21)	—	(†)	2.9	(0.73)	5.0	!	(2.41)	2.9	(0.49)	—	(†)	—	(†)	—	(†)	—	(†)
Tennessee	19.5	(1.38)	19.4	(1.29)	20.1	(1.31)	20.6	(0.96)	21.4	(1.70)	—	(†)	18.1	(0.95)	3.5	(0.67)	4.1		(0.60)	3.8	(0.65)	3.6	(0.40)	—	(†)	—	(†)	—	(†)
Texas	21.7	(0.99)	19.3	(1.01)	19.5	(0.71)	20.8	(1.30)	20.5	(1.26)	—	(†)	17.0	(1.24)	3.8	(0.52)	3.6		(0.30)	4.6	(0.51)	4.8	(0.47)	—	(†)	—	(†)	—	(†)
Utah	7.6	(1.18)	8.7	(2.00)	10.0	(1.53)	9.6	(1.26)	7.6	(0.79)	—	(†)	8.1	(0.89)	1.7	(0.42)	3.8	!	(1.24)	2.5	(0.48)	4.0	(0.72)	—	(†)	—	(†)	—	(†)
Vermont6	25.3	(1.59)	24.1	(0.88)	24.6	(1.14)	24.4	(1.43)	25.7	(0.83)	22.4	(0.29)	23.5	(0.30)	7.0	(0.80)	6.3		(0.63)	6.3	(0.57)	6.0	(0.84)	—	(†)	—	(†)	—	(†)
Virginia	—	(†)	—	(†)	—	(†)	18.0	(1.79)	17.9	(0.85)	16.2	(0.96)	16.5	(0.92)	—	(†)	—		(†)	—	(†)	3.5	(0.70)	—	(†)	—	(†)	—	(†)
Washington	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—		(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)
West Virginia	19.6	(1.70)	23.5	(1.05)	20.3	(1.73)	19.7	(1.61)	18.9	(1.39)	16.5	(1.65)	18.5	(1.60)	4.9	(0.85)	5.8		(0.97)	3.9	(0.37)	3.0	(0.45)	—	(†)	—	(†)	—	(†)
Wisconsin	15.9	(1.07)	20.3	(1.30)	18.9	(1.64)	21.6	(1.78)	17.3	(1.12)	—	(†)	16.0	(1.60)	—	(†)	—		(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)
Wyoming	17.8	(1.05)	14.4	(0.79)	16.9	(0.91)	18.5	(1.23)	17.8	(0.81)	18.3	(1.55)	—	(†)	4.0	(0.43)	4.7		(0.52)	5.3	(0.45)	4.7	(0.44)	—	(†)	—	(†)	—	(†)
Puerto Rico	6.8	(0.66)	—	(†)	—	(†)	4.6	(0.71)	4.8	(0.55)	6.0	(0.54)	7.9	(0.84)	2.5	(0.37)	—		(†)	—	(†)	1.6	(0.36)	—	(†)	—	(†)	—	(†)

—Not available.

†Not applicable.

!Interpret data with caution. The coefficient of variation (CV) for this estimate is between 30 and 50 percent.

1 The term "anywhere" is not used in the Youth Risk Behavior Survey (YRBS) questionnaire; students were simply asked how many times during the previous 30 days they had used marijuana.

2 In the question about using marijuana at school, "on school property" was not defined for survey respondents. Data on marijuana use at school were not collected from 2013 onward.

3 U.S. total data are representative of all public and private school students in grades 9-12 in the 50 states and the District of Columbia. U.S. total data for all years were collected through a separate national survey (rather than being aggregated from state-level data) and include both public and private schools.

4 Ohio data for 2005 through 2013 include both public and private schools.

5 South Dakota data for 2005 through 2015 include both public and private schools.

6 Vermont data for 2013 include both public and private schools.

NOTE: For the U.S. total, data for all years include both public and private schools. State-level data include public schools only, except where otherwise noted. For specific states, a given year's data may be unavailable (1) because the state did not participate in the survey that year; (2) because the state omitted this particular survey item from the state-level questionnaire; or (3) because the state had an overall response rate of less than 60 percent (the overall response rate is the school response rate multiplied by the student response rate).

SOURCE: Centers for Disease Control and Prevention, Division of Adolescent and School Health, Youth Risk Behavior Surveillance System (YRBSS), 2005 through 2017. (This table was prepared July 2018.)