Missouri Population 2020


The landlocked state of Missouri is situated in the United States’ Midwest, and according to figures from the 2010 Census, it was the 18th most populous state in the country at the time. The census revealed that the Missouri population in 2010 was 5,988,927, which represented an increase of 7% on the findings from the 2000 Census. It's not known if the population will reach 6.1 million in the very near future, as Missouri has a current growth rate of just 0.28%, which ranks 41st in the country.

Missouri Area and Population Density

Missouri is relatively sparsely populated, but not remarkably so. Its total land mass measures 69,704 square miles and for every square mile of land, there is an average of 87.1 people. This makes Missouri the 28th most densely populated state in the country, despite being 18th in terms of population and 21st in terms of land area.

The four largest cities in the state are St. Louis (315,685), Kansas City (475,378), Springfield (166,810) and Columbia (119,108), while the capital itself is Jefferson City. Most of the state's counties have a population density between 1 and 100 people per square mile, although the large urban areas have a population density that reaches over 5,000 people per square mile. Missouri does have a higher rural population than most of the country, with approximately one-third of Missourians living in a rural area.

Missouri Gender and Religion Statistics

The median age in Missouri is approximately 38.3 years of age. The ratio of females to males is approximately 50.9% female and 49.1% male.

In terms of preferred religions through the state's population, we can see 77% have an affiliation with a Christian based faith, 3% are involved in non-Christian based faiths, and 20% are unaffiliated with any faith in particular.

Missouri Boundary, Census, and Statehood History

Missouri was acquired as part of the Louisiana Purchase of 1803 and became part of Louisiana Territory, established in 1805 and comprising the whole of the Louisiana Purchase north of present-day Louisiana. This was renamed Missouri Territory in 1812. The southern portion (present-day Arkansas and most of Oklahoma) became Arkansas Territory in 1819. Missouri was admitted as a State on August 10, 1821; the northwestern corner (the Platte Purchase) was added in 1837, bringing the State to essentially its current boundaries.

In 1810, census coverage of Louisiana Territory was limited to portions of present-day Missouri and Arkansas, mainly close to the Mississippi River. The 1810 census was reported by districts (renamed counties in 1812); Arkansas District was entirely within present-day Arkansas and is shown under that State; New Madrid District also was partly within present-day Arkansas. In 1820, census coverage of Missouri Territory did not extend beyond present-day Missouri. After statehood in 1821, Missouri Territory, distinct from the State, continued to exist until 1854, but was almost entirely Indian lands and had virtually no census coverage.

Missouri Demographics

According to the most recent ACS, the racial composition of Missouri was:

  • White: 82.24%
  • Black or African American: 11.57%
  • Two or more races: 2.55%
  • Asian: 1.92%
  • Other race: 1.17%
  • Native American: 0.44%
  • Native Hawaiian or Pacific Islander: 0.11%

Missouri Population History

Back in 1810, it was revealed that 19,783 citizens lived in Missouri, but increasing migration throughout the 19th century helped to swell the numbers significantly. Just ten years later in 1820, the population of Missouri had climbed by 236.6% to 66,586, and a further increase of over 100% took those numbers to 140,455 in 1830.

Further significant increases throughout the 1800s meant that by the time the 20th century arrived, the Missouri population stood at 3,106,665. From this point, census by census increases began to slow down but the overall picture was one of sustained growth to the point where the population of Missouri in 2012 had climbed to over 6 million for the first time.

Missouri Population Growth

Natural growth figures released in 2007 showed that there had been an increase of 137,564 people since the 2000 census with 480,763 births, 343,199 deaths and a net migration increase of 88,088 in the seven year period.

The total population has been estimated to approach 6.8 million people by 2030, a 21% increase over the population in 2000. The population of senior citizens is expected to grow very quickly as well, and it's estimated that people over 65 will account for one-fifth of the state's population by 2030. Natural change is expected to add an average of 244,000 Missourians every decade.

Missouri Population Projections

The northern and southeastern areas of Missouri are expected to lose a great deal of their population in the coming decades, while the urban areas continue to grow. In many ways, statistics relating to the population of Missouri are fairly unremarkable but like much of the US, the overall picture is one of healthy and sustained growth. At the 2020 census, it will be interesting to see how far the numbers can stretch beyond 6 million toward the next milestone.

[The largest ancestry groups](https://en.wikipedia.org/wiki/Missouri) in Missouri are: German (27.4%), Irish (14.8%), English (10.2%), American (8.5%) and French (3.7%). A large percentage of Missourians are of German ancestry and present throughout the state. African Americans are also a large part of the population of Missouri's largest urban area, St. Louis, accounting for 56.6% of the state's total African American population.

Missouri's diversity range also has a population of Missouri Creoles of French ancestry around the Mississippi River Valley, and Kansas City is home to a large and growing community of Latin American immigrants, as well as immigrants from Africa, Eastern Europe and Southeast Asia. There is also a large population of Cherokee Indians in Missouri. Missouri has a rapidly rising population of Hispanics.

Missouri Growth Rate

Missouri Population Rank

Missouri Population 2020

  • The first permanent settlement in Missouri was St. Genevieve, which was established in 1735.
  • The state was named after a tribe of Sioux Indians that inhabited the state and were known as Missouris. The name translates to "wooden canoe people."
  • The most destructive tornado in US history, the Tri-State tornado of 1925, touched down in Missouri, destroying 90% of Annapolis and killing 695 people.
  • Adolphus Busch and Eberhard Anheuser were two of the earliest St. Louis immigrants. The Anheuser-Busch brewery is located in St. Louis today and is the largest beer-producer in the United States.
  • St. Louis is home to the St. Louis Arch, the tallest US monument that stands at 630 feet.
  • Missouri leads the nation in lead production.

St. Louis County

  • Population996,945
  • Density1963.37 per sq km
  • Growth Since 2010-0.19%
  • State Population Rank1
  • % of State16.27%

Data from the 2010 Census and 2015 Census Bureau estimates break down the population counts for the counties of Missouri, and this data shows that there have been areas with significant growth, as well as areas that have shown declines during the 5-year period. Boone County, located in the central region of the state, reflected the most growth at 7.21%. Other counties that showed growth of greater than 5% include St. Charles, Platte, Clay, Christian, and Taney.

As would be expected, some counties saw declining populations during the same time period between 2010 and 2015. The highest decline was reported to be in Holt County at 8.56%. Neighboring county Atchinson posted 6.02% decrease, while Sullivan and Knox Counties had population declines of greater than 5%.

Population by Race

Race Population Percentage
Black or African American704,89611.57%
Two or More Races155,3282.55%
Some Other Race71,1621.17%
American Indian and Alaska Native26,9520.44%
Native Hawaiian and Other Pacific Islander6,6620.11%

Missouri Population Pyramid 2020

Missouri Median Age







Missouri Adults

There are 4,705,000 adults, (981,692 of whom are seniors) in Missouri.

Missouri Age Dependency


Age Dependency Ratio


Old Age Dependency Ratio


Child Dependency Ratio

Missouri Sex Ratio







Missouri Households and Families

Missouri Renter vs Owner Occupied by Household Type

Missouri Household Types

Type Owner Renter
Non Family51.5%48.5%


Rate of Home Ownership

Type Count Average Size Owned
Non Family855,6961.2551.5


Average Family Size


Average Household Size


Unmarried (Opposite Sex)


Unmarried (Same Sex)

Missouri Education

Education Attained Count Percentage
Less Than 9th Grade134,3693.26%
9th to 12th Grade296,1607.18%
High School Graduate1,266,43030.70%
Some College923,04522.38%
Associates Degree323,7517.85%
Bachelors Degree729,54317.69%
Graduate Degree451,54010.95%

Missouri Educational Attainment by Race

Name Total High School Bachelors
Multiple Races60,43952,63616,694
Other Race35,96322,8795,396
Native American19,05216,0833,884

The highest rate of high school graduation is among white people with a rate of 90.74%.

The highest rate of bachelors degrees is among asian people with a rate of 59.00%.

Name Average Male Female
Less Than High School$22,135$26,644$17,509
High School Grad$30,003$35,664$23,187
Some College$33,932$41,492$28,680
Bachelors Degree$48,319$59,823$40,618
Graduate Degree$60,351$75,407$52,765


Average Earnings


Average Male


Average Female

Missouri Language

Missouri Language by Age

Missouri Language

93.89% of Missouri residents speak only English, while 6.11% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 2.55% of the population.

Missouri Poverty

Missouri Poverty by Race

Name Total In Poverty Poverty Rate


Overall Poverty Rate


Male Poverty Rate


Female Poverty Rate

Poverty in Missouri

The race most likely to be in poverty in Missouri is Islander, with 31.78% below the poverty level.

The race least likely to be in poverty in Missouri is White, with 11.74% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.87%. Among those working part-time, it was 18.65%, and for those that did not work, the poverty rate was 21.68%.

Name Poverty
Less Than High School27.35%
High School13.24%
Some College10.05%
Bachelors or Greater4.06%
Name Poverty
Female Unemployed39.94%
Male Unemployed30.83%
Female Employed8.28%
Male Employed5.69%

Missouri Income

Missouri Income by Household Type

Name Median Mean
Married Families$80,183$100,712
Non Families$31,596$44,498

Missouri Marital Status

Missouri Marital Status

Marriage Rates


Overall Marriage Rate


Male Marriage Rate


Female Marriage Rate

Missouri Married by Age and Sex

Missouri Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.

Missouri Marital Status by Race

Missouri Veterans


Number of Veterans


Male Veterans


Female Veterans

War Veterans
First Gulf War75,373
Second Gulf War64,945
World War II16,250
Age Group Veterans
65 to 74115,292
35 to 5493,278
55 to 6477,923
18 to 3432,687
Name Veterans % of Total
2 or More6,1727.79%

$Missouri Veterans by Education


Veteran Poverty Rate


Veteran Disability Rate

Missouri Employment Status


Labor Force Participation


Employment Rate


Unemployment Rate

Missouri Place of Birth

Origin of Non-Citizens

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens


Born in Missouri


Native Born


Foreign Born


Non Citizen

Place of Birth

95.93% of Missouri residents were born in the United States, with 66.09% having been born in Missouri. 2.16% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.