Metro area · Missouri

St. Louis, MO-IL metro area

St. Louis, MO-IL is a metropolitan area of 15 counties in Missouri, Illinois, home to 2,814,421 residents. St. Louis, MO-IL metro area has a quality-of-life score of 72 out of 100 (high), ranking #262 of 925 US metro and micro areas. Among metro and micro areas based in Missouri it ranks #4 of 25. It ranks best on some college (high), income adjusted for local prices (high) and pharmacies (high). It ranks worst on median Air Quality Index (high), days with unhealthy air (high) and high ozone days (high).

72High
Quality-of-life score
#262 of 925 metro and micro areas
Missouri
#4 of 25 in MO
Population
2,814,421 (2025)
Land area
7,863 mi²
Density
357.9 /mi²
CBSA code
41180

Percentile-based score (100 is the best in the country) from 69 of 80 indicators, with the default “Explorer” weights.

Open in the map
Location of St. Louis, MO-IL metro area

Scores by category

Each category averages its indicators' percentile scores among US metro and micro areas.

  • Safety13#801/924
  • Economy84#147/925
  • Housing64#330/925
  • Health63#347/925
  • Healthcare89#107/923
  • Environment3#893/917
  • Education91#82/925
  • Infrastructure85#144/925
  • Community75#234/925
  • Leisure & amenities68#297/925

Strengths · Weaknesses

Indicators where St. Louis, MO-IL metro area ranks highest and lowest among US metro and micro areas (score = percentile, 100 = best).

Strengths

Weaknesses

What changed in five years

How each measure moved between two periods about five years apart, read against whether more or less is better, the published margin of error and the same change in other places.

Metro and micro areas like St. Louis, MO-IL metro area five years ago that improved

The places whose measures looked most like those of St. Louis, MO-IL metro area in the earlier period, ranked by how many measures improved beyond the margin of error, minus how many declined. A comparison of published data, not a forecast and not advice.

Who lives here

Age, race and education of residents, from the American Community Survey. Shares are of all residents (age), residents of every origin (race) or adults 25 and over (education).

Income

How household income is spread, not just the middle: each bar is the share of households in that income range.

Homes

Who owns and who rents, what homes cost, and what the housing stock looks like.

Getting to work

How workers travel to their job and how long it takes them.

Jobs and pay

What the largest occupations here pay, from the Bureau of Labor Statistics' Occupational Employment and Wage Statistics survey.

Local businesses

Employer businesses and sole proprietors by industry, per resident and against the state and the nation. Counts of businesses next to counts of people, not a measure of demand.

Federal contract spending

Federal grants & assistance

Grants, loans (counted at their subsidy cost), direct payments and insurance, by fiscal year of the action (USAspending.gov, FABS). Reported apart from contracts and never added to them.

Counties in St. Louis, MO-IL

Whole counties, as the U.S. Office of Management and Budget delineates the area. Federal spending below is the exact sum of these counties.

  1. St. Louis CountyCentral county71990,911
  2. St. Charles CountyCentral county92426,499
  3. St. Louis cityCentral county40278,144
  4. Madison CountyCentral county71263,110
  5. St. Clair CountyCentral county53250,708
  6. Jefferson CountyCentral county56233,132
  7. Monroe CountyCentral county9134,840
  8. Franklin CountyOutlying county67108,090
  9. Lincoln CountyOutlying county4066,676
  10. Macoupin CountyOutlying county6643,748
  11. Warren CountyOutlying county5539,016
  12. Clinton CountyOutlying county8237,128
  13. Jersey CountyOutlying county6721,160
  14. Bond CountyOutlying county4916,959
  15. Calhoun CountyOutlying county684,300

States

The share of the area's residents living in each state.

Principal cities

The cities the area is named for.

  1. St. CharlesPrincipal city71,508
  2. St. LouisPrincipal city288,512

Largest cities and towns

By population, for places with most of their residents in the area.

  1. St. Louis288,512
  2. O'Fallon93,801
  3. St. Charles71,508
  4. St. Peters59,092
  5. Florissant51,773
  6. Chesterfield49,574
  7. Wentzville47,061
  8. Belleville41,370
  9. Oakville35,333
  10. Wildwood35,133
  11. University City34,685
  12. O'Fallon32,262
  13. Ballwin31,279
  14. Mehlville29,805
  15. Kirkwood29,363
  16. Maryland Heights27,880
  17. Granite City26,549
  18. Edwardsville26,474
  19. Alton25,279
  20. Hazelwood25,114
  21. Collinsville24,031
  22. Webster Groves23,712
  23. Arnold20,956
  24. Old Jamestown20,651

Other metro and micro areas in Missouri

Areas based in Missouri, best score first.

Neighboring metro and micro areas

Places that share a border, best score first.

Similar metro and micro areas

Closest indicator profiles across the country (no model: score distances).

Data and sources

Latest published value of each indicator; periods differ by source. Values flagged by their publisher are marked.

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