HomeMissouriSt. Charles CountyLake St. Louis city
Lake St. Louis city, Missouri: commercial real estate data.
Lake St. Louis city is a Census city of 18,066 people across 8.55 square miles of land, in St. Charles County. Median household income is $125,693, 75.6 percent of occupied homes are owned, and the SBA record carries 37 7(a) approvals to borrowers here worth $18.3 m.
76 sourced place values · tier FULL · 8 sections · underlined figures are computed by MMCG Analytics, not published by the agency
Lake St. Louis
What Lake St. Louis is
- Census place typecity
- Land area8.55 sq mi
- Water area0.81 sq mi
- Population per square mile of land2,113
- County holding the largest share of its areaSt. Charles County, 100.0 percent
US Census Bureau, cartographic boundary file, places, 2024 vintage. US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Lake St. Louis
How many people live in Lake St. Louis
- Population18,066
- Median age42.7
- Population under 183,624
- Share under 1820.1 percent
- Population 65 and over3,712
- Share 65 and over20.5 percent
- Households7,351
- Family households5,339
- Share of households that are families72.6 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Lake St. Louis
Income and work in Lake St. Louis
- Median household income$125,693
- Per capita income$62,954
- Civilian labor force10,014
- Employed9,539
- Unemployed475 plus or minus 170
- Unemployment rate4.7 percent plus or minus 1.7
- Adults 25 and over12,473
- Adults 25 and over with a high school diploma or higher97.0 percent
- Adults 25 and over with a bachelor degree or higher51.7 percent
- Adults 25 and over with a graduate degree17.6 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Lake St. Louis
Housing in Lake St. Louis
- Housing units7,657
- Occupied units7,351
- Vacant units306 plus or minus 181
- Vacancy rate4.0 percent plus or minus 2.4
- Owner occupied5,559
- Renter occupied1,792
- Ownership rate75.6 percent
- Median owner-occupied home value$405,900
- Median gross rent, monthly$1,588
- Annual rent as a share of median income15.2 percent
- Single family units5,953
- Share single family77.7 percent
- Units in buildings of two or more1,704 plus or minus 360
- Share in buildings of two or more22.3 percent plus or minus 4.6
- Mobile homes0
- Median year structure built2000
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Lake St. Louis
How Lake St. Louis gets to work
- Workers 16 and over who commute7,303
- Commuting under 15 minutes1,623 plus or minus 327
- Share commuting under 15 minutes22.2 percent
- Commuting 30 minutes or more2,442
- Share commuting 30 minutes or more33.4 percent
- Drove alone71.3 percent
- Carpooled6.1 percent plus or minus 2.0
- Public transport0.0 percent
- Walked0.5 percent plus or minus 0.5
- Worked from home21.9 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Lake St. Louis
SBA loans in Lake St. Louis (7(a))
- Approvals37
- Gross approval$18,337,900
- Average approval$495,619
- Median approval$196,000
- Ninetieth percentile approval$1,750,000
- Largest approval$5,000,000
- Jobs supported511
- Jobs per approval13.8
- Loans with a final outcome8
- Paid in full7
- Charged off1
- Median term120 months
- Share on real estate terms of 20 years or more5.4 percent
- Share to franchises35.1 percent
- Distinct lenders20
- Distinct industries by NAICS30
A charge-off rate is not published here. only 8 resolved loans, too few to publish a rate, and a rate over that few outcomes would move several points on one loan.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
Lake St. Louis
SBA loans in Lake St. Louis (504)
- Approvals9
- Gross approval$4,977,000
- Average approval$553,000
- Median approval$564,000
- Largest approval$883,000
- Jobs supported95
- Loans with a final outcome1
- Charged off0
- Median term240 months
- Distinct CDCs2
US Small Business Administration, 504 FOIA release, FY2010 to FY2026 year to date, as of 2026-06-30.
St. Charles County, not Lake St. Louis
St. Charles County context, not Lake St. Louis figures
These are St. Charles County figures. There is no place level equivalent published for any of them, so they are shown as the county backdrop and never as Lake St. Louis measurements.
- Establishments in St. Charles County8,946
- Employment at those establishments, St. Charles County143,624
- Covered employment, St. Charles County162,611
- Average annual pay, St. Charles County$60,105
- Average weekly wage, St. Charles County$1,156
- Housing units permitted, St. Charles County2,040
- Of those, single family, St. Charles County1,420
- County product, 2024, St. Charles County$26,418,953,000
- County product change over the prior year, St. Charles County5.8 percent
- Average income of an arriving household, St. Charles County$77,444
Every figure in this section is published for St. Charles County as a whole and is not a measurement of Lake St. Louis. It is here because a county backdrop is what a credit committee reads a place against, and it is labelled so that it can never be quoted as the place's own.
US Census Bureau, County Business Patterns, 2023. US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages. US Census Bureau, Building Permits Survey, 2024 annual. US Bureau of Economic Analysis, Regional, table CAGDP2, CAGDP2, through 2024. US Internal Revenue Service, Statistics of Income county migration flows, 2021 to 2022 filing years.
Coverage
What this page does not hold.
Every item below could be filled with a plausible figure. None of them is. On a page a lender may read, a number that cannot be traced is worse than an absence, so the absences are named.
- This place is not listed as a community in the FEMA Community Status Book, so no NFIP participation or CRS class is shown.
- Parcel level detail, zoning and flood zone at an address are resolved in the platform, not on this page.
SBA figures count approvals to borrowers whose address is in the place. They are not approvals for projects inside the place boundary: the tape records a borrower city and a project county, and those can differ.
Common questions
Lake St. Louis questions, answered from the record.
How many people live in Lake St. Louis, Missouri?
18,066, in 7,351 households. Lake St. Louis city covers 8.55 square miles of land, which is 2,113 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
What county is Lake St. Louis in?
St. Charles County, which holds 100.0 percent of the place by area. Source: US Census Bureau, cartographic boundary file, places, 2024 vintage.
What is the median household income in Lake St. Louis?
$125,693. The median owner-occupied home is valued at $405,900. Median gross rent is $1,588 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
How much SBA lending goes to Lake St. Louis businesses?
37 7(a) approvals totalling $18.3 m, across 20 lenders, median approval $196,000, plus 9 504 approvals worth $5.0 m. These count approvals to borrowers whose address is in Lake St. Louis, not projects sited inside the place boundary, and they are approvals recorded in the release rather than loans disbursed.
Do SBA loans to Lake St. Louis borrowers get paid back?
No rate is published for Lake St. Louis. only 8 resolved loans, too few to publish a rate, and a percentage over that few outcomes would move several points on a single loan. The counts are shown instead.
Are the county figures on this page Lake St. Louis figures?
No, and they are labelled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for St. Charles County as a whole and there is no place level equivalent. They appear in one clearly marked section as context and are never presented as measurements of Lake St. Louis.
Is zoning published for Lake St. Louis?
Not yet. The zoning layer is in build. Nothing on this page presents parcel level zoning.