Table 231.60.

Percentage of public school students in grades 9-12 who reported carrying a weapon at least 1 day 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	18.5	(0.80)	18.0	(0.87)	17.5	(0.73)	16.6	(0.65)	17.9	(0.73)	16.2	(0.91)	15.7	(1.26)	6.5	(0.46)	5.9	(0.37)	5.6	(0.32)	5.4	(0.35)	5.2	(0.44)	4.1	(0.29)	3.8		(0.45)
Alabama	21.0	(1.72)	—	(†)	22.9	(2.27)	21.5	(1.54)	23.1	(1.55)	22.5	(1.91)	—	(†)	8.4	(1.44)	—	(†)	8.7	(1.42)	8.2	(1.02)	5.5	(0.56)	5.6	(1.15)	—		(†)
Alaska	—	(†)	24.4	(1.61)	20.0	(1.30)	19.0	(1.19)	19.2	(1.31)	—	(†)	—	(†)	—	(†)	8.4	(1.07)	7.8	(0.83)	5.7	(0.72)	6.1	(0.80)	8.2	(0.87)	10.2		(1.01)
Arizona	20.6	(0.84)	20.5	(0.91)	19.9	(1.25)	17.5	(1.17)	17.5	(1.17)	18.0	(1.28)	15.6	(1.83)	7.4	(0.53)	7.0	(0.75)	6.5	(0.64)	5.7	(0.59)	4.8	(0.86)	4.5	(0.93)	3.5		(0.54)
Arkansas	25.9	(1.15)	20.7	(1.36)	22.9	(1.82)	21.1	(1.76)	27.1	(1.76)	21.0	(1.40)	22.2	(2.57)	10.5	(1.10)	6.8	(0.85)	8.4	(1.02)	6.5	(0.95)	9.1	(1.10)	5.4	(0.90)	6.3		(0.77)
California	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	8.9	(1.25)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	2.8	(0.50)	4.7		(0.87)
Colorado	17.0	(1.57)	—	(†)	16.7	(1.27)	15.5	(1.31)	—	(†)	—	(†)	—	(†)	5.4	(0.81)	—	(†)	5.5	(0.90)	5.5	(0.69)	—	(†)	—	(†)	4.9		(0.62)
Connecticut	16.3	(1.30)	17.2	(1.72)	12.4	(0.89)	—	(†)	—	(†)	—	(†)	—	(†)	6.4	(0.83)	5.5	(1.03)	3.9	(0.45)	6.6	(0.67)	6.6	(0.82)	6.2	(0.59)	5.4		(0.55)
Delaware	16.6	(1.04)	17.1	(1.00)	18.5	(0.92)	13.5	(0.88)	14.4	(0.80)	13.0	(0.91)	13.5	(0.97)	5.7	(0.54)	5.4	(0.55)	5.1	(0.59)	5.2	(0.57)	3.1	(0.34)	4.0	(0.54)	3.1		(0.42)
District of Columbia	17.2	(1.11)	21.3	(1.45)	—	(†)	18.9	(1.34)	20.0	(0.47)	18.1	(0.40)	18.8	(0.48)	6.7	(0.60)	7.4	(0.76)	—	(†)	5.5	(0.88)	—	(†)	—	(†)	—		(†)
Florida	15.2	(0.68)	18.0	(0.93)	17.3	(0.60)	15.6	(0.76)	15.7	(0.67)	15.4	(0.92)	14.2	(0.64)	4.7	(0.41)	5.6	(0.41)	4.7	(0.35)	—	(†)	—	(†)	—	(†)	3.2		(0.26)
Georgia	22.1	(1.99)	19.5	(0.96)	18.8	(1.11)	22.8	(2.25)	18.5	(1.51)	—	(†)	—	(†)	7.5	(1.50)	5.3	(0.48)	6.0	(0.90)	8.6	(1.80)	4.2	(0.66)	—	(†)	—		(†)
Hawaii	13.3	(1.03)	14.8	(1.56)	15.9	(2.06)	13.9	(0.81)	10.5	(0.87)	10.7	(0.58)	11.9	(0.79)	4.9	(0.72)	3.7	(0.92)	4.7	(0.63)	4.2	(0.45)	—	(†)	—	(†)	—		(†)
Idaho	23.9	(1.45)	23.6	(1.35)	21.8	(1.15)	22.8	(1.30)	27.1	(1.31)	28.2	(1.52)	29.6	(1.36)	—	(†)	8.9	(0.96)	6.7	(0.59)	6.3	(0.78)	6.5	(0.92)	6.8	(1.02)	9.8		(1.31)
Illinois	—	(†)	14.3	(1.01)	16.0	(1.04)	12.6	(0.91)	15.8	(1.22)	15.4	(1.41)	14.0	(1.04)	—	(†)	3.7	(0.67)	4.8	(0.59)	3.9	(0.53)	4.7	(0.57)	4.3	(0.51)	3.7		(0.68)
Indiana	19.2	(1.25)	20.9	(0.80)	18.1	(1.58)	17.0	(1.46)	—	(†)	19.6	(1.84)	—	(†)	5.8	(0.71)	6.9	(0.64)	5.7	(0.80)	3.7	(0.46)	—	(†)	5.6	(1.13)	—		(†)
Iowa	15.7	(1.49)	12.8	(1.13)	—	(†)	15.8	(1.26)	—	(†)	—	(†)	18.1	(2.15)	4.3	(0.70)	4.4	(0.61)	—	(†)	4.5	(0.76)	—	(†)	—	(†)	4.2		(0.62)
Kansas	16.2	(1.37)	18.4	(1.19)	16.0	(1.26)	—	(†)	16.1	(0.87)	—	(†)	16.9	(1.12)	4.9	(0.85)	5.7	(0.75)	5.1	(0.65)	5.2	(0.72)	—	(†)	—	(†)	—		(†)
Kentucky	23.1	(1.49)	24.4	(1.08)	21.7	(1.72)	22.8	(1.72)	20.7	(1.35)	23.1	(1.62)	20.5	(1.68)	6.8	(0.72)	8.0	(0.59)	6.5	(0.77)	7.4	(1.25)	6.4	(0.73)	6.5	(1.03)	4.9		(0.87)
Louisiana	—	(†)	—	(†)	19.6	(1.73)	22.2	(0.98)	22.8	(2.78)	—	(†)	22.8	(2.05)	—	(†)	—	(†)	5.8	(1.12)	4.2	(1.01)	7.0	(1.37)	—	(†)	5.7		(0.83)
Maine	18.3	(2.00)	15.0	(1.47)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	5.9	(1.03)	4.9	(0.70)	—	(†)	8.0	(0.45)	7.1	(0.46)	5.8	(0.37)	5.3		(0.39)
Maryland	19.1	(1.59)	19.3	(1.51)	16.6	(1.19)	15.9	(1.10)	15.8	(0.27)	14.9	(0.24)	—	(†)	6.9	(0.88)	5.9	(0.81)	4.6	(0.58)	5.3	(0.55)	4.8	(0.13)	4.3	(0.14)	7.4		(0.21)
Massachusetts	15.2	(0.88)	14.9	(0.88)	12.8	(1.00)	12.3	(0.95)	11.6	(0.83)	12.6	(1.20)	11.1	(0.75)	5.8	(0.59)	5.0	(0.48)	4.4	(0.58)	3.7	(0.46)	3.1	(0.50)	3.2	(0.38)	2.7		(0.24)
Michigan	15.8	(1.49)	17.9	(1.30)	16.6	(0.69)	15.7	(0.94)	15.5	(1.06)	16.6	(1.50)	17.5	(1.21)	4.7	(0.54)	5.0	(0.66)	5.4	(0.33)	3.5	(0.37)	3.8	(0.35)	3.6	(0.60)	4.1		(0.86)
Minnesota	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—		(†)
Mississippi	—	(†)	17.3	(1.33)	17.2	(1.02)	18.0	(1.39)	19.1	(1.56)	21.0	(1.50)	—	(†)	—	(†)	4.8	(0.60)	4.5	(0.48)	4.2	(0.76)	4.1	(0.66)	5.2	(0.51)	—		(†)
Missouri	19.4	(1.79)	18.6	(1.48)	16.0	(1.44)	—	(†)	22.2	(1.93)	22.1	(1.72)	19.8	(1.65)	7.3	(0.99)	4.6	(0.83)	5.3	(1.02)	—	(†)	—	(†)	5.9	(0.68)	4.2		(0.92)
Montana	21.4	(1.20)	22.1	(0.76)	23.0	(1.07)	23.5	(0.96)	25.7	(0.84)	26.4	(0.94)	25.2	(0.82)	10.2	(0.89)	9.7	(0.57)	7.9	(0.67)	9.3	(0.69)	9.9	(0.58)	10.6	(0.80)	8.5		(0.62)
Nebraska	17.9	(0.89)	—	(†)	—	(†)	18.6	(0.90)	—	(†)	—	(†)	—	(†)	4.8	(0.48)	—	(†)	—	(†)	3.8	(0.45)	—	(†)	8.1	(0.95)	5.4		(1.00)
Nevada	18.4	(1.32)	14.5	(1.08)	19.1	(1.08)	—	(†)	16.0	(1.50)	18.3	(1.53)	—	(†)	6.8	(0.91)	4.7	(0.61)	6.2	(0.62)	—	(†)	3.3	(0.64)	3.7	(0.59)	4.8		(0.61)
New Hampshire	16.2	(1.26)	18.1	(1.46)	—	(†)	14.5	(1.04)	—	(†)	—	(†)	16.0	(0.46)	6.5	(0.93)	5.8	(0.61)	8.8	(1.00)	—	(†)	—	(†)	—	(†)	3.6		(0.21)
New Jersey	10.5	(0.95)	—	(†)	9.6	(0.81)	9.6	(1.17)	10.2	(1.08)	—	(†)	—	(†)	3.1	(0.53)	—	(†)	3.1	(0.45)	—	(†)	2.7	(0.34)	—	(†)	—		(†)
New Mexico	24.5	(1.44)	27.5	(1.20)	27.4	(0.90)	22.8	(0.93)	22.2	(0.88)	22.5	(0.82)	24.2	(0.96)	8.0	(0.29)	9.3	(0.66)	8.1	(0.59)	6.5	(0.51)	5.4	(0.42)	4.6	(0.33)	5.8		(0.52)
New York	14.3	(0.74)	14.2	(0.76)	13.9	(0.98)	12.6	(0.76)	12.8	(0.82)	13.0	(0.96)	11.6	(0.84)	5.2	(0.42)	4.7	(0.41)	4.8	(0.64)	4.2	(0.32)	4.0	(0.38)	4.5	(0.51)	3.4		(0.39)
North Carolina	21.5	(1.35)	21.2	(1.19)	19.6	(0.95)	20.8	(1.24)	20.6	(1.34)	19.3	(1.33)	18.4	(1.27)	6.4	(0.77)	6.8	(0.94)	4.7	(0.57)	6.1	(0.64)	4.5	(0.67)	3.9	(0.54)	3.4		(0.44)
North Dakota	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	6.0	(0.74)	5.0	(0.57)	5.4	(0.64)	5.7	(0.73)	6.4	(0.75)	5.2	(0.49)	5.9		(0.75)
Ohio4	15.2	(1.27)	16.6	(1.42)	—	(†)	16.4	(1.37)	14.2	(1.61)	—	(†)	—	(†)	4.4	(0.63)	4.1	(0.51)	—	(†)	—	(†)	—	(†)	—	(†)	—		(†)
Oklahoma	18.9	(1.38)	22.3	(1.65)	19.0	(1.44)	19.4	(1.86)	19.9	(1.41)	19.5	(1.66)	20.4	(1.55)	7.0	(0.77)	9.0	(1.43)	5.6	(0.79)	6.1	(1.14)	6.0	(0.77)	4.8	(0.80)	6.4		(0.79)
Oregon	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—		(†)
Pennsylvania	—	(†)	—	(†)	14.8	(1.28)	—	(†)	—	(†)	17.4	(1.27)	17.4	(1.14)	—	(†)	—	(†)	3.3	(0.47)	—	(†)	—	(†)	2.0	(0.44)	2.2		(0.30)
Rhode Island	12.4	(0.90)	12.0	(0.74)	10.4	(0.50)	11.2	(0.82)	—	(†)	—	(†)	—	(†)	4.9	(0.41)	4.9	(0.63)	4.0	(0.33)	4.0	(0.39)	5.0	(0.78)	4.8	(0.80)	5.1		(1.01)
South Carolina	20.5	(1.42)	19.8	(1.69)	20.4	(2.22)	23.4	(1.86)	21.2	(1.25)	20.5	(1.88)	18.3	(1.32)	6.7	(0.82)	4.8	(0.79)	4.6	(0.67)	6.3	(0.89)	3.7	(0.48)	2.9	(0.46)	3.9		(0.65)
South Dakota5	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	8.3	(0.72)	6.3	(0.80)	9.2	(0.76)	5.7	(0.52)	6.8	(0.87)	7.1	(1.29)	—		(†)
Tennessee	24.1	(1.58)	22.6	(1.41)	20.5	(1.64)	21.1	(1.34)	19.2	(1.70)	—	(†)	18.5	(1.45)	8.1	(0.92)	5.6	(0.70)	5.1	(0.70)	5.2	(0.80)	5.4	(0.79)	—	(†)	—		(†)
Texas	19.3	(0.93)	18.8	(0.71)	18.2	(0.89)	17.6	(0.73)	18.4	(1.33)	—	(†)	16.5	(1.23)	7.9	(0.63)	6.8	(0.55)	6.4	(0.76)	4.9	(0.45)	5.6	(0.68)	—	(†)	—		(†)
Utah	17.7	(1.70)	17.1	(1.38)	16.0	(1.40)	16.8	(1.48)	17.2	(1.19)	—	(†)	24.0	(1.86)	7.0	(1.03)	7.5	(1.00)	4.6	(0.63)	5.9	(1.01)	5.0	(0.57)	—	(†)	7.1		(0.70)
Vermont6	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	9.1	(0.90)	9.6	(1.05)	9.0	(0.61)	9.1	(0.73)	10.4	(1.28)	7.7	(0.19)	6.9		(0.18)
Virginia	—	(†)	—	(†)	—	(†)	20.4	(1.26)	15.8	(0.69)	15.0	(0.75)	—	(†)	—	(†)	—	(†)	—	(†)	5.7	(0.64)	—	(†)	2.6	(0.44)	3.8		(0.38)
Washington	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—	(†)	—		(†)
West Virginia	22.3	(1.32)	21.3	(1.52)	24.4	(1.05)	20.7	(1.64)	24.3	(2.16)	26.1	(1.57)	23.9	(1.63)	8.5	(1.00)	6.9	(0.89)	6.5	(0.72)	5.5	(0.75)	5.5	(0.99)	6.5	(0.87)	4.8		(0.79)
Wisconsin	15.8	(1.19)	12.7	(0.76)	10.9	(0.81)	10.4	(0.66)	14.4	(1.32)	—	(†)	—	(†)	3.9	(0.54)	3.6	(0.49)	3.4	(0.50)	3.1	(0.41)	3.2	(0.52)	—	(†)	5.2		(0.74)
Wyoming	28.0	(1.17)	26.8	(1.28)	26.0	(1.04)	27.1	(1.19)	28.8	(0.95)	29.6	(1.33)	—	(†)	10.0	(0.71)	11.4	(0.76)	11.5	(0.81)	10.5	(0.71)	9.9	(0.62)	10.7	(0.82)	—		(†)
Puerto Rico	8.9	(0.80)	—	(†)	—	(†)	10.0	(1.19)	8.9	(0.62)	7.1	(0.90)	9.4	(2.18)	3.7	(0.49)	—	(†)	—	(†)	4.4	(0.58)	2.8	(0.44)	2.8	(0.42)	5.5	!	(1.80)

—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 days they carried a weapon during the past 30 days.

2 In the question asking students about carrying a weapon at school, "on school property" was not defined for survey respondents.

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: Respondents were asked about carrying "a weapon such as a gun, knife, or club." 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.)