Lake St. Louis, MO housing market
The typical Lake St. Louis home is worth about $433,000, up 0.7% in a year, 62% above the Missouri typical home. Homes typically sell in 13 days, a little above asking.
Home values, sales, trends and how Lake St. Louis compares with the towns next door — updated as new data is published.
Lake St. Louis at a glance
A seller's market
Supply is tight — about 2 months of homes for sale at the current pace. Buyers should expect competition on well-priced homes.
Typical home value, 2016–2026
Show as a table
| January | Lake St. Louis | Missouri |
|---|---|---|
| 2017 | $272,000 | $148,000 |
| 2018 | $280,000 | $156,000 |
| 2019 | $291,000 | $165,000 |
| 2020 | $307,000 | $173,000 |
| 2021 | $334,000 | $193,000 |
| 2022 | $386,000 | $219,000 |
| 2023 | $405,000 | $237,000 |
| 2024 | $418,000 | $247,000 |
| 2025 | $431,000 | $258,000 |
| 2026 | $432,000 | $263,000 |
| August 2026 | $433,000 | $268,000 |
153 new homes permitted in 2025
Builders were permitted 153 new homes in Lake St. Louis in 2025: 75 single-family houses and 78 in buildings with two or more homes, worth about $48.2 million to build. That's 8.5 per 1,000 residents, faster than across Missouri (3.7). Over the past 10 years, Lake St. Louis has permitted 2,244 homes in all.
Homes vs. people, 2010–2020
Between the 2010 and 2020 censuses, Lake St. Louis gained 2,162 residents while 1,267 new homes were permitted: about 1.7 new residents per new home. Building and growth moved roughly in step. Across Missouri: 1.1 new residents per new home.
How Lake St. Louis ranks on housing keeping up with growth →
Residents: U.S. Census Bureau, 2010 and 2020 censuses. New homes: permits issued 2010–2019.
Show as a table
| Year | New homes | Single-family | 2+ per building | Value |
|---|---|---|---|---|
| 2026 (Jan–Aug) | 129 | 68 | 61 | $32.2 million |
| 2025 | 153 | 75 | 78 | $48.2 million |
| 2024 | 29 | 29 | 0 | $14.2 million |
| 2023 | 220 | 64 | 156 | $47.8 million |
| 2022 | 220 | 40 | 180 | $50.4 million |
| 2021 | 552 | 142 | 410 | $117.1 million |
| 2020 | 300 | 204 | 96 | $90.6 million |
| 2019 | 177 | 169 | 8 | $58 million |
| 2018 | 329 | 110 | 219 | $58.1 million |
| 2017 | 153 | 79 | 74 | $31 million |
| 2016 | 111 | 83 | 28 | $29.6 million |
| 2015 | 176 | 118 | 58 | $42.5 million |
| 2014 | 165 | 82 | 83 | $29.8 million |
| 2013 | 74 | 74 | 0 | $19.3 million |
| 2012 | 22 | 22 | 0 | $5.5 million |
| 2011 | 29 | 29 | 0 | $6.9 million |
| 2010 | 31 | 31 | 0 | $10.1 million |
| 2009 | 55 | 31 | 24 | $12 million |
| 2008 | 52 | 34 | 18 | $10.7 million |
| 2007 | 144 | 65 | 79 | $31.5 million |
| 2006 | 127 | 98 | 29 | $27.2 million |
| 2005 | 216 | 156 | 60 | $30.4 million |
| 2004 | 216 | 165 | 51 | $35.4 million |
| 2003 | 285 | 236 | 49 | $45.6 million |
| 2002 | 612 | 235 | 377 | $57.6 million |
| 2001 | 232 | 187 | 45 | $41.3 million |
| 2000 | 144 | 138 | 6 | $27.8 million |
How Lake St. Louis ranks on new homes being built →
Homes authorized by building permits, counted in the year the permit was issued. U.S. Census Bureau, Building Permits Survey, through August 2026.
Lake St. Louis and its neighbors
| Town | Typical value | 1-yr change | 2-bed rent | New homes 2025 | Median income |
|---|---|---|---|---|---|
| Lake St. Louis | $433K | +0.7% | $1,680 | 153 | $125,693 |
| Dardenne Prairie | $472K | +1.1% | $1,570 | 83 | $152,500 |
| O'Fallon | $380K | +1.7% | $1,460 | 446 | $110,443 |
| Wentzville | $401K | +1.4% | $1,420 | 239 | $112,394 |
3.4 years of income
The typical Lake St. Louis home costs about 3.4 years of the town's median household income, less than across Missouri (3.8 years).
How Lake St. Louis ranks on affordability →
Home value ÷ ACS median household income.
Owners, rent & taxes
U.S. Census Bureau, ACS 2020-2024.
A two-bedroom rents for about $1,680
HUD's Fair Market Rent for a two-bedroom in Lake St. Louis is $1,680 a month, utilities included: roughly what a modest, recently rented unit costs. Renters already in Lake St. Louis pay a median of $1,588. A two-bedroom takes about 16% of the town's median household income.
Studio $1,320 · 4 bedrooms $2,500
U.S. Department of Housing and Urban Development, FY2026 Fair Market Rents by ZIP code (63367; St. Louis, MO-IL HUD Metro FMR Area), weighted by land area. A Fair Market Rent is the 40th-percentile rent plus utilities for a standard unit. Median rent: U.S. Census Bureau, American Community Survey.
Home values: Zillow Home Value Index (ZHVI), Zillow Research, August 2026. Sales, days on market and supply: Redfin Data Center, May 2026. Income, ownership, taxes and rent: U.S. Census Bureau, American Community Survey. New homes: U.S. Census Bureau, Building Permits Survey. Fair Market Rents: U.S. Department of Housing and Urban Development. Listings link to their publishers.