Jefferson County is located in the state of Montana, with a total population of 12221. The land area spans approximately 4291.254207 square miles, contributing to its total area of 4297.859342 square miles.

Jefferson County Interactive Map

[county_map]

About Jefferson County, Montana

Here is some important info of Jefferson County, Montana

Jefferson County, Montana Population Demographics

As of the last census, Jefferson County has a total population of 12221, out of which 6234 are Male while 5987 are female.

You can check the total population for every year in the below table:

Year Population
2010 11407
2011 11375
2012 11318
2013 11455
2014 11502
2015 11572
2016 11779
2017 11921
2018 12094
2019 12221

Race Demographics

Category Percentage
non_hispanic_white_alone_male 47.3%
non_hispanic_white_alone_female 45.0%
black_alone_male 0.3%
black_alone_female 0.1%
asian_alone_male 0.1%
asian_alone_female 0.4%
hispanic_male 1.5%
hispanic_female 1.4%

Age Demographics

Category Percentage
0-4 4.7%
5-9 5.3%
10-14 6.3%
15-19 5.8%
20-24 4.4%
25-29 4.2%
30-34 4.7%
35-39 5.8%
40-44 5.5%
45-49 6.6%
50-54 6.8%
55-59 8.3%
60-64 9.4%
65-69 8.9%
70-74 6.4%
75-79 3.8%
80-84 1.9%
85+ 1.3%

Additional Information

  • Average Income: 47960
  • Number of Police officers: 25
  • Jefferson County FIPS code: 30043

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Source: Census.gov, Wikipedia.org