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COUNTY

St. Louis County

Missouri · 990,911 residents (2025 est.) · 508 sq mi
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Part of the St. Louis metro area
The short version

St. Louis County is home to 995,569 people in Missouri. Few US counties rank higher on income. 47% of adults hold a bachelor's degree or higher. There are 1,960 people per square mile. Households here earn about 17% more than in Missouri as a whole. Home values have more than doubled since 2000, reaching $276,800.

At a glance
Average income
near the US median
US median: $82,259
Mid-age
median age 40.3
US median: 38.9
More educated
47% hold a bachelor's degree
US average: 36%
Less affordable
home values up 32%, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
995,569
−2%since 2000
from 1,016,315 in 2000
990,911 in 2025 (Census Bureau estimate)
1990 – 2025
Population density
1,960 / sq mi
Unchangedsince 2009
from 1,959 / sq mi in 2009
US average: 281
Median age
40.3
+7%since 2000
from 37.5 in 2000
US average: 38.9
Land area
508 sq mi
Population, 1990 – 2024
991K998K1.0M1.0M1.0M19902000201020202024St. Louis County
2024996K
1990201020202024
Age distribution, 2024
Under 55.6%(55,672)
US avg: 5.6%
5 to 96%(59,353)
US avg: 6%
10 to 146.5%(64,392)
US avg: 6.4%
15 to 196.4%(63,702)
US avg: 6.6%
20 to 246%(59,276)
US avg: 6.5%
25 to 3412.7%(126,457)
US avg: 13.7%
35 to 4412.8%(127,872)
US avg: 13.2%
45 to 5411.7%(116,504)
US avg: 12.2%
55 to 6413.3%(132,022)
US avg: 12.7%
65 to 7411.1%(110,849)
US avg: 10.2%
75 to 845.6%(55,889)
US avg: 5.1%
85 and over2.4%(23,581)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$82,936
−10%inflation adjusted, since 2000
from $50,532 in 2000
US average: $82,259
1990 – 2024
Per capita income
$51,977
+88%since 2000
from $27,595 in 2000
US average: $44,673
Households earning $100K+
54.2%
+16.6 ptssince 2009
from 37.6% in 2009
US average: 53.3%
Poverty rate
9.8%
+2.9 ptssince 2000
from 6.9% in 2000
US average: 12.5%
Income inequality (Gini)
0.494
+4%since 2010
from 0.476 in 2010
US average: 0.476
Workforce by industry, 2024
Other services10%
US avg: 6.7%
Information9.9%
US avg: 10.8%
Retail trade9.5%
US avg: 9.9%
Public administration7.8%
US avg: 4.8%
Finance & insurance5.4%
US avg: 5.9%
Professional, scientific, technical4.6%
US avg: 5.1%
Wholesale trade4.4%
US avg: 6.9%
Transportation & warehousing2.7%
US avg: 2.2%
Arts, entertainment, food2%
US avg: 1.9%
Education & health services0.8%
US avg: 0.9%
Agriculture, forestry, fishing0.5%
US avg: 1.6%
Construction0.4%
US avg: 1.2%
Manufacturing0.1%
US avg: 0.4%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Median home value
$276,800
+32%inflation adjusted, since 2000
from $114,800 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$1,209
+10%inflation adjusted, since 2000
from $601 in 2000
US average: $1,442
Owner-occupied
69.2%
−4.9 ptssince 2000
from 74.1% in 2000
30.8% rent
Vacancy rate
7.2%
+0.1 ptssince 2009
from 7.2% in 2009
US average: 10.0%
Persons per household
2.36 people
−2%since 2009
from 2.40 people in 2009
US average: 2.54
Owner cost-burdened
18.8%
−6.2 ptssince 2009
from 25.0% in 2009
US average: 22.9%
Renter cost-burdened
45.5%
−0.2 ptssince 2009
from 45.7% in 2009
US average: 47.4%
Afford Score
3.3
+10%since 2009
from 3.0 in 2009
2009 – 2024
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Gentrification Score
44
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04

Race & ethnicity

2000
White, non-Hispanic76%(772,041)
Black18.9%(192,544)
Hispanic / Latino1.4%(14,577)
Asian2.2%(22,492)
Other0%
2024
White, non-Hispanic61.4%(610,928)
Black24%(239,132)
Hispanic / Latino3.9%(38,412)
Asian4.9%(48,640)
Other5.9%(58,457)
Diversity Score
70
+28%since 2009
from 55 in 2009
2009 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Segregation Score
50
−6%since 2020
from 54 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins

Detailed origins & ancestry

Hispanic origin
Mexican2.3%(22,829)
Central American0.4%(4,001)
South American0.4%(3,540)
Puerto Rican0.2%(2,205)
Guatemalan0.1%(1,305)
Cuban0.1%(1,250)
Spaniard0.1%(1,249)
Colombian0.1%(1,203)
Salvadoran0.1%(1,124)
Honduran0.1%(1,110)
Venezuelan0.1%(771)
Peruvian0.1%(769)
+ 10 more hispanic origin groups with data
Dominican0.1%(586)
Chilean0%(253)
Argentine0%(224)
Nicaraguan0%(202)
Ecuadorian0%(182)
Panamanian0%(127)
Bolivian0%(99)
Uruguayan0%(19)
Asian origin
Asian Indian1.9%(19,271)
Chinese1.1%(11,296)
Vietnamese0.4%(4,224)
Filipino0.4%(3,719)
Korean0.3%(2,900)
Pakistani0.2%(1,586)
Taiwanese0.1%(970)
Japanese0.1%(748)
Kazakh0.1%(602)
Nepalese0.1%(599)
Thai0%(423)
Sri Lankan0%(175)
+ 10 more asian origin groups with data
Burmese0%(172)
Malaysian0%(134)
Cambodian0%(127)
Laotian0%(107)
Mongolian0%(54)
Hmong0%(41)
Bhutanese0%(23)
Uzbek0%(10)
Pacific Islander origin
Samoan0%(189)
Fijian0%(146)
Chamorro0%(84)
Ancestry
German22.3%(221,556)
Irish12.2%(121,090)
English9.1%(90,641)
American5.5%(54,380)
Italian4.6%(45,945)
French2.4%(24,215)
Polish2.4%(24,203)
Scottish1.5%(15,111)
Subsaharan African1.3%(13,278)
Russian0.8%(8,258)
Dutch0.7%(7,192)
Arab0.7%(7,074)
+ 51 more ancestry groups with data
Swedish0.7%(6,740)
Scotch-Irish0.6%(6,062)
Norwegian0.5%(5,118)
Czech0.5%(5,111)
Welsh0.4%(4,265)
Hungarian0.4%(4,078)
Greek0.4%(4,000)
British0.3%(3,208)
Croatian0.3%(2,963)
Swiss0.3%(2,940)
Austrian0.3%(2,843)
Danish0.3%(2,521)
Ukrainian0.2%(2,337)
Nigerian0.2%(2,263)
West Indian0.2%(2,102)
Lithuanian0.2%(1,940)
Kenyan0.2%(1,865)
Lebanese0.2%(1,730)
French Canadian0.1%(1,473)
Slovak0.1%(1,202)
Romanian0.1%(1,163)
Syrian0.1%(1,118)
Canadian0.1%(1,114)
Turkish0.1%(1,015)
Jamaican0.1%(979)
Serbian0.1%(958)
Portuguese0.1%(950)
Iranian0.1%(914)
Palestinian0.1%(880)
Bulgarian0.1%(876)
Finnish0.1%(858)
Belgian0.1%(728)
Ghanaian0.1%(665)
Brazilian0.1%(655)
Ethiopian0.1%(652)
Haitian0.1%(623)
Slovene0.1%(582)
Armenian0%(480)
Jordanian0%(423)
Australian0%(300)
Moroccan0%(292)
Iraqi0%(246)
Egyptian0%(235)
Israeli0%(220)
Latvian0%(137)
Macedonian0%(115)
Barbadian0%(93)
Somali0%(23)
Section 05

Education

Bachelor's degree or higher
47.4%
+12.0 ptssince 2000
from 35.4% in 2000
US average: 35.6%
High school or higher
94.5%
+6.6 ptssince 2000
from 88.0% in 2000
US average: 89.6%
Graduate degree
20.4%
+7.0 ptssince 2000
from 13.4% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
23.1 min
+55%since 2000
from 14.9 min in 2000
US average: 26.5
Drive alone to work
71.3%
−12.2 ptssince 2009
from 83.6% in 2009
US average: 68.9%
Carpooled to work
6.4%
−1.3 ptssince 2009
from 7.7% in 2009
US average: 8.5%
Public transit
1.4%
−0.6 ptssince 2009
from 2.0% in 2009
US average: 3.2%
Worked from home
18.3%
+14.2 ptssince 2009
from 4.1% in 2009
US average: 15.0%
Walked to work
1.4%
Unchangedsince 2009
from 1.4% in 2009
US average: 2.4%
Biked to work
0.2%
Unchangedsince 2009
from 0.2% in 2009
US average: 0.4%
No vehicle available
6.6%
+0.7 ptssince 2009
from 5.9% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
4.3%
−3.5 ptssince 2011
from 7.8% in 2011
US average: 5.2%
Labor force participation
65.0%
−2.0 ptssince 2011
from 67.0% in 2011
US average: 63.5%
Women 20-64 in the labor force
79.0%
+1.3 ptssince 2020
from 77.7% in 2020
US average: 74.6%
Self-employed
11.7%
+1.7 ptssince 2009
from 10.0% in 2009
US average: 13.1%
Management & professional
50.4%
+9.0 ptssince 2009
from 41.4% in 2009
US average: 42.5%
Section 08

People & community

Male
47.8%
+0.3 ptssince 2009
from 47.6% in 2009
Female
52.2%
−0.3 ptssince 2009
from 52.4% in 2009
Foreign born
8.4%
+2.4 ptssince 2009
from 6.0% in 2009
US average: 14.1%
Veterans
6.0%
−4.6 ptssince 2009
from 10.6% in 2009
US average: 6.2%
With a disability
12.1%
+0.9 ptssince 2012
from 11.2% in 2012
US average: 13.3%
Uninsured
5.7%
−4.1 ptssince 2013
from 9.8% in 2013
US average: 8.4%
Broadband at home
93.4%
+11.0 ptssince 2017
from 82.4% in 2017
US average: 91.0%
Computer in household
96.3%
+3.3 ptssince 2020
from 93.0% in 2020
US average: 95.5%
Same house as last year
88.2%
+1.6 ptssince 2020
from 86.5% in 2020
US average: 87.7%
English only at home
89.5%
−1.9 ptssince 2016
from 91.4% in 2016
US average: 77.7%
Spanish at home
2.6%
+0.6 ptssince 2016
from 2.0% in 2016
US average: 13.6%
Marital status
Men 15+
Never married36.2%(139,210)
Married52.3%(201,187)
Widowed2.8%(10,838)
Divorced8.6%(33,083)
Women 15+
Never married32.5%(140,529)
Married45.8%(197,638)
Widowed9%(38,955)
Divorced12.7%(54,712)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09

Health coverage

Uninsured
5.7%
−4.1 ptssince 2013
from 9.8% in 2013
US average: 8.4%
Employer-based
63.3%
−1.5 ptssince 2020
from 64.8% in 2020
US average: 54.8%
Direct-purchase
13.4%
−0.4 ptssince 2020
from 13.8% in 2020
US average: 13.8%
Medicare
19.8%
+0.8 ptssince 2020
from 19.0% in 2020
US average: 18.4%
Medicaid
12.6%
+1.8 ptssince 2020
from 10.8% in 2020
US average: 20.9%
VA health care
1.7%
−0.2 ptssince 2020
from 1.9% in 2020
US average: 2.2%
Any private
74.1%
−2.7 ptssince 2020
from 76.8% in 2020
US average: 67.1%
Any public
31.1%
+2.6 ptssince 2020
from 28.5% in 2020
US average: 36.7%

Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.

Section 09 · Service history

Veterans

Veterans by period of service, 2024
Gulf War (2001 or later)19.1%(8,919)
US avg: 26.4%
Gulf War (1990s)20.3%(9,487)
US avg: 24.3%
Vietnam era36.7%(17,140)
US avg: 33.1%
Korean War5.8%(2,699)
US avg: 4.5%
World War II1.9%(887)
US avg: 1%

Share of the 46,673 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.

BAR + DOT: THIS PLACE · TICK: US AVERAGE
Drill deeper

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Head to head

Compare St. Louis County to nearby counties

ST. LOUIS COUNTY VS
St. Louis
Income$56,160−32%
Home value$197,500−29%
Population278,144−72%
SEE FULL COMPARISON →
ST. LOUIS COUNTY VS
St. Charles County
Income$104,692+26%
Home value$320,800+16%
Population426,499−57%
SEE FULL COMPARISON →
ST. LOUIS COUNTY VS
Jefferson County
Income$82,851same
Home value$237,200−14%
Population233,132−76%
SEE FULL COMPARISON →
ST. LOUIS COUNTY VS
Monroe County
Income$102,880+24%
Home value$282,100+2%
Population34,840−96%
SEE FULL COMPARISON →
Frequently asked

How many people live in St. Louis County, Missouri?

St. Louis County, Missouri has about 995,569 residents according to the 2024 American Community Survey.

What is the median household income in St. Louis County, Missouri?

The typical household in St. Louis County, Missouri earns about $82,936 a year. Half of households make more than that, and half make less.

Is St. Louis County, Missouri expensive?

In St. Louis County, Missouri, the median home is worth about $276,800, and the typical rent is about $1,209 a month.

How educated are people in St. Louis County, Missouri?

About 47.4% of adults age 25 and over in St. Louis County, Missouri hold a bachelor's degree or higher.

What is the poverty rate in St. Louis County, Missouri?

About 9.8% of people in St. Louis County, Missouri live below the federal poverty line.

Has St. Louis County, Missouri grown since 1990?

Yes, St. Louis County, Missouri has grown since 1990. The population has added about 2,040 residents, a change of about 0 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →