Saint Charles, MO
Source:
Affordability Score: 76/100
Population: 134,684 · 3 ZIP codes
The affordability dashboard for Saint Charles, MO aggregates Census ACS 5-Year Estimates across 3 ZIP codes covering 134,684 residents, then layers in county-level federal data to produce an overall grade of B+ (76/100). The headline inputs are median household income of $98,740, median home value of $310,784, median rent of $1,407 per month, and 45.1% of adults holding a bachelor's degree or higher. These four metrics alone explain most of the variance between city dashboards.
Cross-agency feeds widen the picture beyond Census demographics. HUD publishes a Fair Market Rent for a 2-bedroom in this county at $1,218 per month (studio $955, 1BR $995, 3BR $1,568, 4BR $1,812).
Reading the overall grade requires reading all seven dimensions together. The score weights Income 20%, Safety 20%, Housing 15%, Rent 15%, Education 10%, Commute 10%, and Childcare 10%, with each sub-score benchmarked against national percentiles rather than state averages — so the grade is genuinely comparable across any city in the country. Strengths visible in the raw data for Saint Charles, MO include income, education, rent. Unemployment currently reads 3.1% and poverty 5.7% — numbers worth keeping alongside the headline grade.
Score Breakdown
Income & Employment
Housing
Fair Market Rents by Bedroom
Safety
Education & Family
Childcare Costs
What This Means
Saint Charles, MO receives an overall affordability grade of B+ (76/100), aggregated from 3 ZIP codes with a total population of 134,684. This area performs well in income and education and rent. Data was unavailable for safety, childcare — these dimensions were excluded from the overall score.
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Official Data Resources
Data as of 2024. Source: U.S. Census Bureau ACS 5-Year Estimates. Source: HUD Fair Market Rents. Source: FBI Uniform Crime Report. Source: DOL National Database of Childcare Prices. Verify with HUD →
Read our methodology — how this data is sourced, computed, and verified.