St. Peters, Missouri Population 2020

57,167

St. Peters is a city located in Missouri. With a 2020 population of 57,167, it is the 10th largest city in Missouri and the 679th largest city in the United States. St. Peters is currently growing at a rate of 0.03% annually and its population has increased by 8.73% since the most recent census, which recorded a population of 52,575 in 2010. Spanning over 22 miles, St. Peters has a population density of 2,552 people per square mile.

The average household income in St. Peters is $91,392 with a poverty rate of 3.54%. The median rental costs in recent years comes to $979 per month, and the median house value is $174,800. The median age in St. Peters is 39.8 years, 37.9 years for males, and 41.3 years for females. For every 100 females there are 93.4 males.

St. Peters Demographics

According to the most recent ACS, the racial composition of St. Peters was:

  • White: 89.80%
  • Black or African American: 5.10%
  • Two or more races: 2.39%
  • Asian: 2.22%
  • Other race: 0.33%
  • Native American: 0.15%
  • Native Hawaiian or Pacific Islander: 0.02%
The current population of St. Peters, Missouri is 57,167, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 57,127.The last official US Census in 2010 recorded the population at 52,575.

St. Peters, Missouri Population 2020

Population by Race

Race Population Percentage
White51,03889.80%
Black or African American2,9015.10%
Two or More Races1,3612.39%
Asian1,2592.22%
Some Other Race1860.33%
American Indian and Alaska Native840.15%
Native Hawaiian and Other Pacific Islander90.02%

St. Peters Population Pyramid 2020

St. Peters Median Age

39.8


Total

37.9


Male

41.3


Female

St. Peters Adults

There are 44,397 adults, (8,699 of whom are seniors) in St. Peters.

St. Peters Age Dependency

59.2

Age Dependency Ratio

24.4

Old Age Dependency Ratio

34.9

Child Dependency Ratio

St. Peters Sex Ratio

Female

29,390

51.71%

Male

27,448

48.29%

St. Peters Households and Families

St. Peters Renter vs Owner Occupied by Household Type

St. Peters Household Types

Type Owner Renter
Married90.4%9.6%
All81.2%18.8%
Female76.6%23.4%
Non Family68.1%31.9%
Male67.4%32.6%

81.2%

Rate of Home Ownership

Type Count Average Size Owned
All22,5322.5181.2
Married12,4273.1590.4
Non Family7,1581.1568.1
Female2,1203.0976.6
Male8273.2867.4

3.07

Average Family Size

2.51

Average Household Size

4%

Unmarried (Opposite Sex)

0.1%

Unmarried (Same Sex)

St. Peters Education

Education Attained Count Percentage
Less Than 9th Grade6041.50%
9th to 12th Grade1,6504.09%
High School Graduate9,84024.37%
Some College8,82721.86%
Associates Degree4,10110.15%
Bachelors Degree9,87924.46%
Graduate Degree5,48413.58%

St. Peters Educational Attainment by Race

Name Total High School Bachelors
White35,76933,87313,710
Black2,0642,016605
Hispanic1,115891301
Asian940878517
Multiple Races490481214
Other Race1119657
Native American664013
Islander999

The highest rate of high school graduation is among islander people with a rate of 100.00%.

The highest rate of bachelors degrees is among islander people with a rate of 100.00%.

Name Average Male Female
Overall$45,998$53,847$38,620
Less Than High School$28,290$33,537$22,141
High School Grad$34,241$40,411$27,444
Some College$41,865$50,107$35,592
Bachelors Degree$55,725$72,367$43,983
Graduate Degree$64,303$85,980$55,576

$45,998

Average Earnings

$53,847

Average Male

$38,620

Average Female

St. Peters Language

St. Peters Language by Age

St. Peters Language

94.42% of St. Peters residents speak only English, while 5.58% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 2.27% of the population.

St. Peters Poverty

St. Peters Poverty by Race

Name Total In Poverty Poverty Rate
White48,9741,6503.37%
Black2,9012538.72%
Hispanic1,959713.62%
Multiple1,361201.47%
Other186147.53%
Native841113.10%

3.54%

Overall Poverty Rate

3.28%

Male Poverty Rate

3.79%

Female Poverty Rate

Poverty in St. Peters

The race most likely to be in poverty in St. Peters is Native, with 13.10% below the poverty level.

The race least likely to be in poverty in St. Peters is Multiple, with 1.47% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.54%. Among those working part-time, it was 5.01%, and for those that did not work, the poverty rate was 8.53%.

Name Poverty
Less Than High School11.00%
High School5.92%
Some College3.12%
Bachelors or Greater0.62%
Name Poverty
Female Unemployed22.44%
Male Unemployed7.43%
Male Employed1.56%
Female Employed1.38%

St. Peters Income

St. Peters Income by Household Type

Name Median Mean
Households$76,803$91,392
Families$94,730$108,428
Married Families$101,611-
Non Families$40,942$51,339

St. Peters Marital Status

St. Peters Marital Status

Marriage Rates

56.0%

Overall Marriage Rate

58.8%

Male Marriage Rate

53.5%

Female Marriage Rate

St. Peters Married by Age and Sex

St. Peters Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 35-44.

St. Peters Marital Status by Race

St. Peters Veterans

3,498

Number of Veterans

3,303

Male Veterans

195

Female Veterans

War Veterans
Vietnam1,364
First Gulf War701
Second Gulf War444
Korea282
World War II99
Name Veterans % of Total
White3,2037.97%
Black1898.41%
Hispanic1078.24%
2 or More537.42%
Asian323.22%
Other159.87%
Indian69.09%

$St. Peters Veterans by Education

2.41%

Veteran Poverty Rate

19.08%

Veteran Disability Rate

St. Peters Employment Status

72.3%

Labor Force Participation

69.3%

Employment Rate

4%

Unemployment Rate

St. Peters 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

68.85%

Born in Missouri

96.22%

Native Born

3.78%

Foreign Born

1.78%

Non Citizen

Place of Birth

96.22% of St. Peters residents were born in the United States, with 68.85% having been born in Missouri. 1.78% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Year Population Growth Annual Growth Rate
202057,167200.03%
201957,147200.04%
201857,127-19-0.03%
201757,146200.04%
201657,1264120.73%
201556,7147301.30%
201455,9841,1862.16%
201354,7987631.41%
201254,0356471.21%
201153,3886111.16%
201052,7771,3960.27%
200051,3815,6021.16%
199045,77930,07911.30%
198015,70015,20041.15%
19705001002.26%
19604001001.45%
19403000.00%