Jefferson County is located in the state of Iowa, with a total population of 18295. The land area spans approximately 1127.999784 square miles, contributing to its total area of 1131.524608 square miles.

Jefferson County Interactive Map

About Jefferson County, Iowa

Here is some important info of Jefferson County, Iowa

Jefferson County, Iowa Population Demographics

As of the last census, Jefferson County has a total population of 18295, out of which 10025 are Male while 8270 are female.

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

Year Population
2010 16837
2011 17096
2012 17278
2013 17629
2014 17793
2015 17906
2016 18063
2017 18219
2018 18256
2019 18295

Race Demographics

Category Percentage
non_hispanic_white_alone_male 40.7%
non_hispanic_white_alone_female 40.1%
black_alone_male 1.8%
black_alone_female 0.8%
asian_alone_male 9.5%
asian_alone_female 1.9%
hispanic_male 1.7%
hispanic_female 1.5%

Age Demographics

Category Percentage
0-4 4.4%
5-9 4.0%
10-14 4.4%
15-19 4.2%
20-24 9.7%
25-29 8.7%
30-34 6.2%
35-39 5.7%
40-44 5.0%
45-49 5.0%
50-54 4.9%
55-59 6.3%
60-64 7.9%
65-69 9.0%
70-74 6.7%
75-79 3.4%
80-84 2.0%
85+ 2.6%

Additional Information

  • Average Income: 42320
  • Number of Police officers: 47
  • Jefferson County FIPS code: 19101

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Source: Census.gov, Wikipedia.org