Rents are 2% below what Saint Charles's 10-year trend predicts — a better deal than its own history suggests.
Rent by unit size
These are HUD Fair Market Rents, the payment standard for a Housing Choice Voucher (Section 8). They often differ from the $1,485 market median above, and that is expected: FMR is the 40th percentile of standard-quality units and counts gross rent, so it includes essential utilities such as electricity, water, gas, sewer, and trash. The market median is asking rent, which usually excludes utilities. HUD sets FMR once a year; market rent here updates monthly.
Source: HUD Small Area Fair Market Rents. Read the methodology →
12-month history
Last updated: October 17, 2026
What the numbers show
December. Asking rents in Saint Charles usually run 0.9% below trend in December and 1% above it in June, about $28 a month apart at today's median. Based on 11 years of data.
Rent in Saint Charles is at its highest level since Zillow's records here began in January 2015.
Rent in Saint Charles changed +3.3% over the year to September 2026. Across the 60 Missouri cities Zillow tracks, the typical change was +4.4%.
Rent in Saint Charles is 43.5% higher than in March 2020. Across the US, rent is up 37.3% over the same stretch.
Rent rose in 10 of the last 12 months.
The priciest of 3 ZIP codes in Saint Charles, 63304 ($1,696/mo), costs 28% more than the cheapest, 63301 ($1,328/mo).
Saint Ann, 10 miles away, rents for 11% less ($1,321/mo), about $2,000 a year in savings.
From Zillow's monthly rent index (ZORI) for Saint Charles. The seasonal pattern compares Zillow’s seasonally adjusted and unadjusted series.
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How Saint Charles, MO has changed in 5 years
Rent in Saint Charles, MO has climbed 35.9% since 2021, going from about $1,093 per month to roughly $1,485 today. For context, the 2021 to 2026 window covers an unusually volatile run for US rents nationally, and Saint Charles, MO reflects that arc in its own way.
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Can you afford rent in Saint Charles on your salary?
At $1,485/mo, how Saint Charles rent compares to typical pay (30% rule).
Saint Charles rent by bedroom count
Median rent for each apartment size in Saint Charles. Click any size for full breakdown.
Tips for renters in Saint Charles
Last updated: October 17, 2026
The median rent in Saint Charles is $1,485/mo as of October 2026. A studio apartment averages $1,123/mo while a 2-bedroom runs $1,437/mo. One-bedroom apartments average $1,163/mo and 3-bedroom units go for $1,857/mo.
At 25% of estimated US median household income ($72,000/yr), Saint Charles ranks as affordable compared to the national benchmark of 30%. Rents have increased 3.3% over the past year.
Frequently asked questions
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At $1,485/mo, rent takes ~25% of US median household income ($72,000/yr). The standard benchmark is 30%.
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Estimated from ZIP-level data
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