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Jefferson County

Jefferson County, Missouri offers affordable homes, larger lots, and a mix of suburban and rural living with easy access to the St. Louis area.

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Located just south of St. Louis, Jefferson County, Missouri offers a unique blend of small-town charm, scenic landscapes, and convenient access to major amenities. Known for its affordability and variety of housing options, Jefferson County is an attractive destination for home buyers seeking more space, privacy, and value while still being within commuting distance to St. Louis County and St. Charles County.
Jefferson County features a diverse range of real estate, including single-family homes, new construction communities, historic properties, and homes on acreage. Popular areas such as Arnold, Festus, Imperial, and Hillsboro each offer their own character, from established neighborhoods to quiet, rural settings. Whether you’re looking for a starter home, a move-up property, or land to build your dream home, Jefferson County provides options for every stage of life.
Residents enjoy a strong sense of community along with access to parks, trails, and outdoor recreation, including the Mississippi River, local conservation areas, and nearby state parks. The county also offers a variety of shopping, dining, and local businesses, making it a well-rounded place to live, work, and grow.
With its combination of affordability, space, and accessibility, Jefferson County continues to be a top choice for buyers in the greater St. Louis area

 

Overview for Jefferson County, MO

27,913 people live in Jefferson County, where the median age is 39.4 and the average individual income is $36,048. Data provided by the U.S. Census Bureau.

27,913

Total Population

39.4 years

Median Age

Low

Population Density Population Density This is the number of people per square mile in a neighborhood.

$36,048

Average individual Income

Around Jefferson County, MO

There's plenty to do around Jefferson County, including shopping, dining, nightlife, parks, and more. Data provided by Walk Score and Yelp.

2
Somewhat Bikeable
Bike Score

Points of Interest

Explore popular things to do in the area, including Kasabi.

Name Category Distance Reviews
Ratings by Yelp
Dining 4.49 miles 33 reviews 4.6/5 stars

Demographics and Employment Data for Jefferson County, MO

Jefferson County has 10,740 households, with an average household size of 2.56. Data provided by the U.S. Census Bureau. Here’s what the people living in Jefferson County do for work — and how long it takes them to get there. Data provided by the U.S. Census Bureau. 27,913 people call Jefferson County home. The population density is 221.91 and the largest age group is Data provided by the U.S. Census Bureau.

27,913

Total Population

Low

Population Density Population Density This is the number of people per square mile in a neighborhood.

39.4

Median Age

49.5 / 50.5%

Men vs Women

Population by Age Group

0-9:

0-9 Years

10-17:

10-17 Years

18-24:

18-24 Years

25-64:

25-64 Years

65-74:

65-74 Years

75+:

75+ Years

Education Level

  • Less Than 9th Grade
  • High School Degree
  • Associate Degree
  • Bachelor Degree
  • Graduate Degree
10,740

Total Households

2.56

Average Household Size

$36,048

Average individual Income

Households with Children

With Children:

Without Children:

Marital Status

Married
Single
Divorced
Separated

Blue vs White Collar Workers

Blue Collar:

White Collar:

Commute Time

0 to 14 Minutes
15 to 29 Minutes
30 to 59 Minutes
60+ Minutes

Schools in Jefferson County, MO

All ()
Primary Schools ()
Middle Schools ()
High Schools ()
Mixed Schools ()
The following schools are within or nearby Jefferson County. The rating and statistics can serve as a starting point to make baseline comparisons on the right schools for your family. Data provided by the U.S. Census Bureau.
Type
Name
Category
Grades
School rating
Jefferson County

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