Lake St. Clair, MO
Population 670 · Missouri
About Lake St. Clair, MO
Lake St. Clair is a small community in Missouri with a population of 670 residents. The median household income is $80,392 per year, which is above the national average. The median age in Lake St. Clair is 35.2 years.
Housing in Lake St. Clair has a median home value of $219,300 and median monthly rent of $0. Of the 290 total housing units, the majority are owner-occupied, with 267 owner-occupied and 23 renter-occupied units.
The unemployment rate in Lake St. Clair is 16.0% and the poverty rate is 0.0%. 13.9% of residents hold a bachelor's degree or higher. The average commute time is 43.6 minutes.
Cost of Living in Lake St. Clair, MO
Compared to national averages, Lake St. Clair has a median household income of $80,392 (7% above the national median of $75,149). Home values average $219,300, which is 10% below the national median. Monthly rent at $0 is 100% below the US average of $1,163. Within Missouri, Lake St. Clair's income is 32% above the state average of $61,047, and home values are 45% above the state median of $150,786.
Why Live in Lake St. Clair, MO?
Lake St. Clair offers a strong local economy with a median household income of $80,392, well above the national average, and affordable housing with a median home value of $219,300, below the US average of $244,900, and rent that’s lower than the national average at $0/month. Additionally, the city features a low poverty rate of 0.0%, better than the national average.
Lake St. Clair has a population of 670 with a median age of 35.2 years. Compare Lake St. Clair with other cities to see how it stacks up, or explore all cities in Missouri.
Similar Cities Near Lake St. Clair
Cities in Missouri with a similar population size.
| City | Population | Median Income | Home Value | |
|---|---|---|---|---|
| Pasadena Park | 670 | $90,309 | $175,300 | Compare |
| Leeton | 667 | $52,273 | $100,000 | Compare |
| Parkway | 673 | $43,672 | $164,200 | Compare |
| Qulin | 673 | $23,713 | $71,500 | Compare |
| Bella Villa | 664 | $55,250 | $147,100 | Compare |
| Pleasant Hope | 679 | $61,607 | $142,500 | Compare |
| Trimble | 661 | $65,556 | $193,300 | Compare |
| Fordland | 681 | $49,167 | $119,600 | Compare |
Demographics
Racial & Ethnic Composition
Economy & Education
Housing
Other Cities in Missouri
Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
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Frequently Asked Questions about Lake St. Clair
What is the population of Lake St. Clair, MO?
The population of Lake St. Clair, MO is 670 according to the latest Census data.
What is the median household income in Lake St. Clair?
The median household income in Lake St. Clair, MO is $80,392 per year.
What is the median home value in Lake St. Clair?
The median home value in Lake St. Clair, MO is $219,300.
What is the average rent in Lake St. Clair?
The median monthly rent in Lake St. Clair, MO is $0.
What is the unemployment rate in Lake St. Clair?
The unemployment rate in Lake St. Clair, MO is 16.0%.