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Age at First Use of Marijuana

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Percent of Students Reporting they First Smoked Marijuana at Age 13 or Younger, All Available Years: by Grade, Gender, and County

20072010
MaleFemaleTotalMaleFemaleTotal
Minnesota6th3%2%2%3%2%2%
9th11%9%10%10%7%8%
12th11%6%9%9%5%7%
All Grades8%6%7%7%5%6%
Aitkin County6th3%0%2%0%0%0%
9th15%15%15%19%9%15%
12th19%13%16%12%12%12%
All Grades12%10%11%10%7%9%
Anoka County6th2%1%2%3%2%3%
9th11%8%9%11%9%10%
12th15%7%10%11%6%8%
All Grades8%5%7%8%6%7%
Becker County6th2%2%2%2%5%4%
9th11%7%9%11%6%8%
12th12%8%10%6%3%4%
All Grades8%6%7%7%5%6%
Beltrami County6th18%16%17%8%5%6%
9th26%23%24%16%19%17%
12th16%15%15%22%20%21%
All Grades21%20%20%15%15%15%
Benton County6th1%1%1%4%0%2%
9th6%8%7%11%6%8%
12th9%7%8%7%7%7%
All Grades6%5%5%7%5%6%
Big Stone County6thN/AN/A2%4%0%2%
9thN/AN/A8%3%0%2%
12thN/AN/A8%15%8%12%
All GradesN/AN/AN/A8%3%5%
Blue Earth County6th3%0%2%2%0%1%
9th6%9%8%10%4%7%
12th9%7%8%4%4%4%
All Grades7%6%6%6%3%4%
Brown County6th1%1%1%1%0%1%
9th2%0%1%7%5%6%
12th7%10%9%3%9%6%
All Grades3%3%3%4%5%4%
Carlton County6th5%4%5%6%2%4%
9th10%8%9%8%10%9%
12th14%10%12%8%3%6%
All Grades10%7%8%7%5%6%
Carver County6th2%1%1%0%1%0%
9th13%6%9%10%6%8%
12th10%4%7%10%2%6%
All Grades8%4%6%6%3%5%
Cass County6th7%6%6%5%4%5%
9th25%20%22%15%19%17%
12th20%19%20%15%15%15%
All Grades18%15%17%12%13%13%
Chippewa County6th4%0%3%N/AN/AN/A
9th6%9%8%N/AN/AN/A
12th12%6%8%N/AN/AN/A
All Grades7%6%7%N/AN/AN/A
Chisago County6th3%1%2%5%1%3%
9th14%13%14%11%4%7%
12th12%11%12%10%8%9%
All Grades10%8%9%8%4%6%
Clay County6th3%3%3%1%1%1%
9th7%6%6%6%7%7%
12th13%7%10%7%6%6%
All Grades7%5%6%6%6%6%
Clearwater County6th0%0%0%0%8%4%
9th12%12%12%16%16%16%
12th0%0%0%9%4%7%
All Grades4%4%4%8%11%9%
Cook County6thN/AN/AN/AN/AN/AN/A
9thN/AN/AN/AN/AN/AN/A
12thN/AN/AN/AN/AN/AN/A
All GradesN/AN/AN/AN/AN/AN/A
Cottonwood County6th3%2%2%2%0%1%
9th4%5%5%4%7%5%
12th9%5%7%6%2%4%
All Grades5%4%4%4%3%4%
Crow Wing County6th3%1%2%3%0%2%
9th16%13%15%19%4%11%
12th11%6%9%12%6%9%
All Grades10%7%8%8%3%6%
Dakota County6th1%1%1%2%1%2%
9th11%8%9%9%6%7%
12th10%7%8%7%4%6%
All Grades7%5%6%6%4%5%
Dodge County6th3%2%2%4%1%2%
9th11%11%11%10%6%8%
12th15%8%12%16%6%11%
All Grades10%7%9%10%4%7%
Douglas County6th2%2%2%0%0%0%
9th6%5%5%8%8%8%
12th9%3%6%5%1%3%
All Grades5%3%4%5%3%4%
Faribault County6th5%0%2%N/AN/AN/A
9th11%4%7%N/AN/AN/A
12th6%5%6%N/AN/AN/A
All Grades8%3%5%N/AN/AN/A
Fillmore County6th3%0%1%0%0%0%
9th4%4%4%5%8%7%
12th12%7%9%3%0%2%
All Grades5%3%4%3%3%3%
Freeborn County6th3%1%2%5%1%3%
9th8%8%8%5%8%7%
12th10%7%9%1%3%2%
All Grades7%6%7%4%4%4%
Goodhue County6th0%2%1%1%1%1%
9th6%9%7%1%2%1%
12th7%3%5%7%6%6%
All Grades4%5%5%3%3%3%
Grant County6th0%0%0%N/AN/AN/A
9th3%9%6%N/AN/AN/A
12th4%3%3%N/AN/AN/A
All Grades2%4%3%N/AN/AN/A
Hennepin County6th4%2%3%3%2%3%
9th12%9%11%11%7%9%
12th12%7%9%10%5%8%
All Grades9%6%8%8%5%6%
Houston County6th3%1%2%5%0%2%
9th9%6%8%8%4%6%
12th5%3%4%11%11%11%
All Grades6%4%5%8%5%7%
Hubbard County6th1%1%1%4%5%5%
9th24%11%18%18%11%15%
12th13%20%16%22%11%17%
All Grades13%10%12%15%9%12%
Isanti County6th2%3%2%N/AN/AN/A
9th16%14%15%N/AN/AN/A
12th14%8%11%N/AN/AN/A
All Grades11%9%10%N/AN/AN/A
Itasca County6th6%3%4%5%3%4%
9th10%20%15%13%12%13%
12th14%5%9%8%10%9%
All Grades9%10%10%9%8%9%
Jackson County6th6%0%3%0%0%0%
9th12%6%9%12%5%9%
12th10%10%10%8%2%5%
All Grades9%5%7%8%3%6%
Kanabec County6th0%3%1%12%0%6%
9th10%8%9%16%11%14%
12th15%9%12%10%8%9%
All Grades8%7%7%13%7%10%
Kandiyohi County6th3%5%4%1%2%2%
9th10%8%9%7%7%7%
12th10%0%6%6%2%4%
All Grades8%6%7%4%4%4%
Kittson County6th0%0%0%0%0%0%
9th3%0%2%4%5%4%
12th8%7%7%11%0%5%
All Grades4%3%3%4%2%3%
Koochiching County6thN/AN/AN/A4%3%4%
9thN/AN/AN/A8%5%7%
12thN/AN/AN/A23%12%17%
All GradesN/AN/AN/A10%6%8%
Lac Qui Parle County6th0%0%0%0%0%0%
9th4%2%3%8%4%6%
12th5%2%3%0%0%0%
All Grades3%1%2%3%2%2%
Lake County6thN/AN/AN/AN/AN/AN/A
9thN/AN/AN/AN/AN/AN/A
12thN/AN/AN/AN/AN/AN/A
All GradesN/AN/AN/AN/AN/AN/A
Lake of the Woods County6thN/AN/AN/AN/AN/AN/A
9thN/AN/AN/AN/AN/AN/A
12thN/AN/AN/AN/AN/AN/A
All GradesN/AN/AN/AN/AN/AN/A
Le Sueur County6th3%0%2%2%1%1%
9th11%6%8%10%4%6%
12th12%2%7%5%5%5%
All Grades9%3%6%6%3%4%
Lincoln County6th0%0%0%0%0%0%
9th0%6%3%0%3%2%
12th9%5%7%0%0%0%
All Grades3%4%3%0%1%1%
Lyon County6th2%1%1%1%1%1%
9th7%3%5%7%2%4%
12th7%5%6%1%1%1%
All Grades5%3%4%3%1%2%
McLeod County6th7%1%4%5%0%3%
9th5%5%5%6%6%6%
12th7%2%5%2%2%2%
All Grades6%3%5%5%3%4%
Mahnomen County6th20%13%16%9%15%12%
9th29%30%29%22%15%18%
12th16%18%17%15%5%10%
All Grades22%21%21%14%13%13%
Marshall County6th2%2%2%0%0%0%
9th7%2%5%8%6%7%
12th2%0%1%11%0%5%
All Grades4%2%3%6%2%4%
Martin County6th6%1%4%5%0%2%
9th6%6%6%7%5%6%
12th15%2%9%4%4%4%
All Grades9%4%6%5%3%4%
Meeker County6th3%0%1%1%1%1%
9th7%4%6%4%3%4%
12th8%8%8%4%5%4%
All Grades6%4%5%3%3%3%
Mille Lacs County6th7%5%6%6%2%4%
9th16%14%15%9%10%10%
12th9%8%8%9%13%11%
All Grades11%9%10%8%8%8%
Morrison County6th2%0%1%4%1%3%
9th13%8%10%7%4%6%
12th13%8%11%6%6%6%
All Grades10%6%8%6%4%5%
Mower County6th2%1%1%5%4%5%
9th13%11%12%5%7%6%
12th12%9%11%7%2%5%
All Grades9%7%8%6%4%5%
Murray County6thN/AN/AN/AN/AN/AN/A
9thN/AN/AN/AN/AN/AN/A
12thN/AN/AN/AN/AN/AN/A
All GradesN/AN/AN/AN/AN/AN/A
Nicollet County6th7%0%4%N/AN/A0%
9th10%12%11%N/AN/A10%
12th6%7%7%N/AN/A11%
All Grades8%7%7%N/AN/AN/A
Nobles County6th4%3%3%4%2%3%
9th4%7%6%8%5%7%
12th8%3%5%6%1%4%
All Grades5%4%5%6%3%5%
Norman County6th10%7%9%4%6%5%
9th8%13%10%10%13%11%
12th16%0%8%8%4%7%
All Grades11%6%9%8%8%8%
Olmsted County6th1%1%1%1%1%1%
9th10%6%8%10%8%8%
12th7%5%6%3%4%4%
All Grades6%4%5%5%4%4%
Otter Tail County6th2%0%1%3%2%2%
9th8%8%8%4%4%4%
12th12%5%8%5%5%5%
All Grades7%5%6%4%4%4%
Pennington County6th3%0%2%N/AN/AN/A
9th12%11%12%N/AN/AN/A
12th2%4%3%N/AN/AN/A
All Grades6%6%6%N/AN/AN/A
Pine County6th7%1%4%5%3%4%
9th21%10%16%13%8%10%
12th10%7%9%8%4%6%
All Grades13%6%9%9%5%7%
Pipestone County6th0%0%0%N/AN/AN/A
9th4%3%4%N/AN/AN/A
12th5%8%7%N/AN/AN/A
All Grades3%4%4%N/AN/AN/A
Polk County6th2%0%1%4%1%3%
9th13%8%10%15%8%11%
12th8%6%7%16%5%11%
All Grades8%5%6%12%5%9%
Pope County6thN/AN/AN/AN/AN/AN/A
9thN/AN/AN/AN/AN/AN/A
12thN/AN/AN/AN/AN/AN/A
All GradesN/AN/AN/AN/AN/AN/A
Ramsey County6th4%2%3%4%3%3%
9th14%10%12%13%10%12%
12th11%6%8%10%6%8%
All Grades9%7%8%9%6%8%
Red Lake County6th0%0%0%0%15%8%
9th11%5%8%11%8%9%
12th0%0%0%16%0%9%
All Grades4%2%3%9%8%9%
Redwood County6th7%0%3%4%8%6%
9th6%7%7%16%13%14%
12th3%11%7%5%3%4%
All Grades6%6%6%9%9%9%
Renville County6th3%0%2%2%0%1%
9th9%4%6%11%4%8%
12th8%6%7%8%10%9%
All Grades7%4%5%7%4%6%
Rice County6th1%1%1%0%2%1%
9th10%5%7%11%9%10%
12th7%5%6%8%4%6%
All Grades6%4%5%7%5%6%
Rock County6thN/AN/AN/AN/AN/AN/A
9thN/AN/AN/AN/AN/AN/A
12thN/AN/AN/AN/AN/AN/A
All GradesN/AN/AN/AN/AN/AN/A
Roseau County6th1%2%2%1%1%1%
9th15%8%12%4%5%4%
12th7%5%6%11%2%7%
All Grades8%5%7%6%3%4%
St. Louis County6th4%2%3%3%2%3%
9th16%13%14%13%10%11%
12th11%8%9%13%8%10%
All Grades10%8%9%9%7%8%
Scott County6th2%1%2%2%1%1%
9th10%5%7%10%7%9%
12th11%5%8%8%4%6%
All Grades8%3%5%7%4%5%
Sherburne County6th3%1%2%2%1%2%
9th9%9%9%6%7%7%
12th13%6%9%8%5%7%
All Grades8%6%7%5%5%5%
Sibley County6th7%0%3%3%6%5%
9th6%6%6%11%12%11%
12th6%2%4%4%0%2%
All Grades6%3%5%6%6%6%
Stearns County6th1%0%1%2%1%2%
9th6%7%7%6%4%5%
12th9%3%6%6%4%5%
All Grades6%4%5%5%3%4%
Steele County6th1%1%1%2%3%2%
9th11%5%8%4%4%4%
12th6%6%6%10%4%7%
All Grades6%4%5%4%4%4%
Stevens County6th0%0%0%N/AN/A0%
9th6%2%4%N/AN/A5%
12th0%3%2%N/AN/A0%
All Grades2%2%2%N/AN/AN/A
Swift County6th0%0%0%2%0%1%
9th10%4%6%13%0%7%
12th16%8%12%4%4%4%
All Grades9%5%7%7%2%4%
Todd County6th1%0%1%2%3%3%
9th8%8%8%5%3%4%
12th7%3%5%9%4%6%
All Grades6%4%5%6%3%5%
Traverse County6thN/AN/A0%N/AN/A6%
9thN/AN/A6%N/AN/A9%
12thN/AN/A6%N/AN/A0%
All GradesN/AN/AN/AN/AN/AN/A
Wabasha County6th2%1%2%1%1%1%
9th7%9%8%6%3%5%
12th15%5%10%10%6%8%
All Grades8%5%7%5%3%4%
Wadena County6th1%1%1%2%0%1%
9th12%5%8%10%7%9%
12th18%3%10%5%5%5%
All Grades10%3%7%6%4%5%
Waseca County6th0%3%2%N/AN/A2%
9th9%7%8%N/AN/A9%
12th8%2%5%N/AN/A4%
All Grades6%4%5%N/AN/AN/A
Washington County6th1%0%1%2%1%1%
9th12%9%11%9%6%7%
12th10%5%8%6%4%5%
All Grades8%5%7%6%4%5%
Watonwan County6th6%0%3%2%2%2%
9th17%9%13%13%10%11%
12th12%0%6%10%7%8%
All Grades12%4%8%9%6%7%
Wilkin County6th3%0%2%3%0%1%
9th10%9%9%3%11%6%
12th0%2%1%0%3%2%
All Grades4%4%4%2%4%3%
Winona County6th1%0%0%2%1%1%
9th13%11%12%13%9%11%
12th14%13%13%8%4%6%
All Grades10%8%9%8%5%6%
Wright County6th1%1%1%1%1%1%
9th9%5%7%4%4%4%
12th11%7%9%5%4%5%
All Grades7%4%5%4%3%3%
Yellow Medicine County6th0%0%0%0%3%1%
9th7%8%7%8%2%5%
12th11%7%9%11%4%7%
All Grades7%5%6%7%3%5%

About the Indicator: N/A indicates that the data are unavailable or were not collected.

Data Source: Minnesota Student Survey (MSS)

Description: The MSS is a confidential and anonymous self-administered survey given to students attending Minnesota public, charter and tribal schools. From 1995 to 2010, the survey was administered to students in 6th, 9th, and 12th grades. New in 2013, the survey was administered to students in 5th, 8th, 9th, and 11th grades. Trend data are now only available for 9th graders, and only for survey questions that did not change. Most schools elect to participate in the survey; in 2013, this included 84% of public schools in Minnesota.

Although the data are not presented here, the survey is also administered to area learning centers, juvenile correction facilities and private schools electing to participate.

Sponsored by: Minnesota Department of Education

Geographic Level: State, Region, and County

Aggregated data at the state and county level do not reveal disparities that may exist within a given geographic area.

Frequency: Data collected and reported every three years

Characteristics: The results of the MSS are also available at a county level. Data Privacy requirements mandate that data is presented in a manner such that no individual student can be identified through the presentation of the results. As part of the Data Privacy practices, the results are also presented in a manner that no individual school district could be identified through the results. Therefore, for counties that have only one school district, the results are not presented. Results are also withheld for counties in which the minimum number for student participation was not met.

The MSS is a “census” of schools, not a sample. The school districts get their own data. Fifth-graders were not asked all substance use questions. Some school districts do not participate, and student participation within the school district can vary widely. These data are self-reported.