Jefferson County Summary

Life in Jefferson County research summary. HomeSnacks has been researching the quality of life in Jefferson County over the past eight years using Census data, FBI crime data, cost of living data, and other primary sources. Based on the most recently available data, we found the following about life in Jefferson County:

  • The population in Jefferson County is 226,984.

  • The median home value in Jefferson County is $251,310.

  • The median income in Jefferson County is $77,217.

  • The median rent in Jefferson County is $957.

  • The unemployment rate in Jefferson County is 3.8%.

  • The poverty rate in Jefferson County is 8.3%.

  • The average high in Jefferson County is 73.5° and there are 100.1 inches of rainfall annually.

Cities & Towns in Jefferson County

List Of Cities & Towns in Jefferson County

Arnold, MO Population 20,840

Festus, MO Population 12,772

Murphy, MO Population 8,427

De Soto, MO Population 6,430

Barnhart, MO Population 6,040

Pevely, MO Population 6,012

Imperial, MO Population 5,385

Herculaneum, MO Population 4,767

Crystal City, MO Population 4,721

High Ridge, MO Population 4,651

Hillsboro, MO Population 3,467

Byrnes Mill, MO Population 3,155

Cedar Hill, MO Population 1,453

LaBarque Creek, MO Population 1,201

Horine, MO Population 945

Olympian Village, MO Population 785

Cedar Hill Lakes, MO Population 282

Lake Tekakwitha, MO Population 252

Parkdale, MO Population 248

Scotsdale, MO Population 147

Peaceful Village, MO Population 127

Kimmswick, MO Population 122

Map Of Jefferson County

Jefferson County, MO Weather

  • The average high in Jefferson County is 73.5°.

  • There are 80.58 nice days each year.

  • Expect an average of 100.1 inches of rain each year with 5.1 inches of snow.

  • There is an average of 5:13 hours of sun each day in Jefferson County.

StatJefferson County
Mean High73.5
Nice Days80.58
Rainfall100.1
Snowfall5.1
Sunny_hours5:13
73.5°
Average High
100.1
Inches of Rain

Jefferson County Photos

Arnold Water Tower From I  North
Source: Public Domain
Greaterstl
Source: Public Domain
Balloon Glow Festus Missouri
Source: Wikipedia User JWolff-STL | CC BY 2.0
Herculaneum Mural
Source: Wikipedia
Doe Run Smelter Herculaneum
Source: Wikipedia User Kbh3rd | CC BY-SA 3.0
Gov Daniel Dunklin Gravesite
Source: Wikipedia User Kbh3rd | CC BY-SA 3.0

Jefferson County Demographics

Population over time in Jefferson County

The current population in Jefferson County is 226,984. The population has increased 0.9% from 2019.

Year Population % Change
2022 225,913 0.5%
2021 224,777 0.4%
2020 223,951 -

Gender in Jefferson County

  • Jefferson County is 49.9% female with 113,235 female residents.

  • Jefferson County is 50.1% male with 113,748 male residents.

Female
49.9% (113,235)
Male
50.1% (113,748)
Gender Jefferson County MO USA
Female 49.9% 50.6% 50.4%
Male 50.1% 49.4% 49.6%

Race / Ethnicity in Jefferson County

Jefferson County is:

  • 90.2% White with 204,792 White residents.

  • 1.0% African American with 2,277 African American residents.

  • 0.1% American Indian with 239 American Indian residents.

  • 1.0% Asian with 2,242 Asian residents.

  • 0.0% Hawaiian with 62 Hawaiian residents.

  • 0.3% Other with 573 Other residents.

  • 5.2% Two Or More with 11,768 Two Or More residents.

  • 2.2% Hispanic with 5,031 Hispanic residents.

White
90.2% (204,792)
African American
1.0% (2,277)
American Indian
0.1% (239)
Asian
1.0% (2,242)
Hawaiian
0.0% (62)
Other
0.3% (573)
Two Or More
5.2% (11,768)
Hispanic
2.2% (5,031)

Table: Jefferson County By Race

Race Jefferson County MO USA
White 90.2% 77.6% 58.9%
African American 1.0% 11.2% 12.1%
American Indian 0.1% 0.2% 0.6%
Asian 1.0% 2.0% 5.7%
Hawaiian 0.0% 0.1% 0.2%
Other 0.3% 0.3% 0.4%
Two Or More 5.2% 4.0% 3.5%
Hispanic 2.2% 4.6% 18.7%

Household Income For Jefferson County, Missouri

  • 3.1% of households in Jefferson County earn Less than $10,000.

  • 2.8% of households in Jefferson County earn $10,000 to $14,999.

  • 5.9% of households in Jefferson County earn $15,000 to $24,999.

  • 7.3% of households in Jefferson County earn $25,000 to $34,999.

  • 12.1% of households in Jefferson County earn $35,000 to $49,999.

  • 17.2% of households in Jefferson County earn $50,000 to $74,999.

  • 15.5% of households in Jefferson County earn $75,000 to $99,999.

  • 21.2% of households in Jefferson County earn $100,000 to $149,999.

  • 8.6% of households in Jefferson County earn $150,000 to $199,999.

  • 6.2% of households in Jefferson County earn $200,000 or more.

Less than $10,000
3.1% (7,091)
$10,000 to $14,999
2.8% (6,316)
$15,000 to $24,999
5.9% (13,413)
$25,000 to $34,999
7.3% (16,632)
$35,000 to $49,999
12.1% (27,464)
$50,000 to $74,999
17.2% (39,129)
$75,000 to $99,999
15.5% (35,210)
$100,000 to $149,999
21.2% (48,182)
$150,000 to $199,999
8.6% (19,499)
$200,000 or more
6.2% (14,043)
Income Jefferson County MO USA
Less than $10,000 3.1% 5.0% 4.9%
$10,000 to $14,999 2.8% 4.3% 3.8%
$15,000 to $24,999 5.9% 8.0% 7.0%
$25,000 to $34,999 7.3% 8.6% 7.4%
$35,000 to $49,999 12.1% 12.3% 10.7%
$50,000 to $74,999 17.2% 17.7% 16.1%
$75,000 to $99,999 15.5% 13.4% 12.8%
$100,000 to $149,999 21.2% 16.1% 17.1%
$150,000 to $199,999 8.6% 7.2% 8.8%
$200,000 or more 6.2% 7.3% 11.4%

Highest level of educational attainment in Jefferson County for adults over 25

  • 1.0% of adults in Jefferson County completed < 9th grade.

  • 7.0% of adults in Jefferson County completed 9-12th grade.

  • 32.0% of adults in Jefferson County completed high school / ged.

  • 24.0% of adults in Jefferson County completed some college.

  • 13.0% of adults in Jefferson County completed associate's degree.

  • 15.0% of adults in Jefferson County completed bachelor's degree.

  • 6.0% of adults in Jefferson County completed master's degree.

  • 1.0% of adults in Jefferson County completed professional degree.

  • 1.0% of adults in Jefferson County completed doctorate degree.

< 9th Grade
0% (2,269)
9-12th Grade
7% (15,888)
High School / GED
32% (72,634)
Some College
24% (54,476)
Associate's Degree
13% (29,507)
Bachelor's Degree
15% (34,047)
Master's Degree
6% (13,619)
Professional Degree
1% (2,269)
Doctorate Degree
1% (2,269)
Education Jefferson County MO USA
< 9th Grade 0% 4% 3%
9-12th Grade 7% 6% 6%
High School / GED 32% 30% 26%
Some College 24% 21% 20%
Associate's Degree 13% 8% 9%
Bachelor's Degree 15% 19% 21%
Master's Degree 6% 9% 10%
Professional Degree 1% 2% 2%
Doctorate Degree 1% 1% 2%

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