Missouri · County property tax · ACS 2024
St. Charles County Property Taxes
The median homeowner in St. Charles County pays $3,480 a year, an effective rate of 1.08%, far above the U.S. average.
- $3,480
- Median tax / yr · High bill
- 1.08%
- Effective rate · Above-median rate
- +75%
- vs U.S. average
- #4 of 115
- rank in MO
The verdict
Homeowners in St. Charles County pay a median $3,480 a year in property tax, an effective rate of 1.08%, more affordable than 30% of U.S. counties (Census ACS 2024).
- $3,480
- Median annual tax bill, 2024
- 1.08%
- Effective rate on median home
- #2202 of 3135
- U.S. counties by tax burden
- +75%
- vs the national average bill
Effective rate is the median property tax bill divided by the median home value ($320,800). U.S. Census Bureau, ACS 5-Year Estimates · 2024.
Census Bureau ACS property tax data for Missouri. Population: 414,535. Owner-occupied homes: 129,898.
The median annual property tax in St. Charles County is $3,480, which is 79% higher than the Missouri state average and 75% above the national average. The effective tax rate is 1.08% on a median home value of $320,800. Property taxes represent 3.3% of the median household income in this county.
Why St. Charles County's ACS bill runs high vs the U.S.
Primary signal
The bill sits well above the national median
Homeowners in St. Charles County pay a median annual property tax of $3,480, far above the national median and far above the Missouri state median. On a $320,800 median home, that works out to an effective rate of 1.08% once the local assessment base and millage are combined.
Decision signal 2
Low among Missouri counties by effective rate
St. Charles County ranks #4 of 115 counties in Missouri by effective rate (97% of in-state counties pay a lower rate).
Decision signal 3
The effective rate sits near the national middle
St. Charles County's 1.08% effective rate sits near the middle of 3,135 tracked counties (more affordable than 30%).
Decision signal 4
Income and the tax bill sit in the middle band
Property taxes in St. Charles County run within the commonly cited 2%-4% national benchmark, at about 3.3% of the $104,692 median household income.
Informational notice
Figures describe the median homeowner household in St. Charles County as reported to the Census Bureau; your parcel can differ. Not tax, legal, or financial advice: check the county assessor or a qualified professional before decisions that depend on these numbers.
Most of the market's rise reached the bill
The effective rate here moved 11.2% down between 2020 and 2024, a smaller shift than in 55% of U.S. counties. With the median home value rose 39.4%, the median bill rose 23.8% to $3,480: the rate did comparatively little to offset the market.
Effective rate is the published median bill divided by the published median home value, so the two multiply back to the bill exactly; the rate's movement here is derived from those two figures rather than read from the rounded published rate. Both are ACS 5-year survey estimates for the median owner-occupied household, compared across non-overlapping releases. They describe what the Census published, not a local policy, assessment, or exemption change.
How to read this county's bill
Bills rose across 2020-2024, from $2,811 to $3,480, a gain of 24%. This is a comparison of published ACS medians, not an explanation of a particular property's assessment or tax bill.
The heaviest band is also the fullest one here: 79,296 of 129,898 owner-occupied homes (61.0%) report annual real-estate taxes above $3,000. That band has no upper edge in the source, so the county median understates the burden carried by the plurality rather than describing it.
Earnings are in the national top quarter and the rate is above the midpoint, so the median bill represents 3.3% of median household income. A headline bill conflates the dollar figure with the proportion; the two come apart here, and the ratio above is the second of them.
The share above is the median annual bill divided by median household income, a ratio of two county-level medians rather than a household-by-household figure.
St. Charles County is an outlier inside Missouri
Across the 115 Missouri counties with a published rate, the average effective rate is 0.70%. St. Charles County is at 1.08%, which sits 2.2 standard deviations above that average. Fewer than one county in twenty nationally is this far from its own state's centre, so a state-level average is a poor guide to what is owed here.
Standard deviations are computed across every county in the state with a published effective rate for 2024; states with fewer than five such counties are not assessed.
What St. Charles County Homeowners Actually Pay
The single largest group of St. Charles County homeowners, 79,296 of 129,898 owner-occupied homes (61.0%), pays $3,000 or more a year. The median is one point in this spread, not a typical bill.
- Less than $800 3.7% (4,856)
- $800 to $1,499 4.9% (6,357)
- $1,500 to $1,999 6.4% (8,289)
- $2,000 to $2,999 21.9% (28,450)
- $3,000 or more 61.0% (79,296)
Census ACS 2024, table B25102. Bands and the no-tax share sum to 100%.
2,650 homes here (2.0%) report no real estate tax at all. Exemptions are set by state: how Missouri handles assessments and appeals.
With vs Without Mortgage
Mortgaged and non-mortgaged homeowners in St. Charles County pay about the same bill, a 4% gap.
St. Charles County's bill vs state & U.S. medians
Median annual bill bars around St. Charles County's HEAVY ACS 2024 figure.
St. Charles County's median bill is 79% above the Missouri median and 75% above the U.S. median.
Above Missouri on both measures
St. Charles County's effective rate runs 27% over the Missouri median and its bill 79% over. When both move together the rate is not being offset by cheaper housing, so the $3,480 median bill is carrying the full weight of the higher rate rather than a valuation difference. This is a comparison of two published medians, not a statement about any individual parcel.
St. Charles County vs Benchmarks
| Metric | St. Charles County | Missouri Avg | U.S. Avg |
|---|---|---|---|
| Median Annual Tax High bill | |||
| Effective Tax Rate Above-median rate | |||
| Median Home Value | |||
| Tax as % of income Above-median income burden | 3.3% | - | - |
Source: U.S. Census Bureau, ACS 5-Year Estimates. Tax-burden differences across rows reflect millage decisions, assessment-ratio practices, and the residential-vs-commercial mix of each tax base.
Is St. Charles County's $3,480 median bill appeal-worthy?
At St. Charles County's $3,480 ACS median (HEAVY), a 10% assessment cut is worth about $348/yr before exemptions. Appeal Savings Estimator · appeal guide for Missouri.
St. Charles County bill trail · HEAVY
| Year | Median Tax (vs prior release) | Effective Rate |
|---|---|---|
| 2024 | $3,480 +4.2% | 1.08% |
| 2023 | $3,340 +4.5% | 1.13% |
| 2022 | $3,196 +8.7% | 1.15% |
| 2021 | $2,941 +4.6% | 1.21% |
| 2020 | $2,811 | 1.22% |
Each row is a separate ACS 5-year release, and consecutive releases share four of their five survey years. The percentage beside each bill is therefore movement in the published estimate against the previous release, not a single year's tax change. The two releases largely describe the same households. For change over time, compare releases that do not overlap.
St. Charles County: tax-to-income at 3.3%
Counties near St. Charles County's median bill
On effective rate, St. Charles County sits nearest Berrien County (MI), Allegan County (MI), Somerset County (ME).
On published median-tax change, the nearest matches are Etowah County (AL), Williamson County (TX), Grayson County (VA).
How peers are chosen
These are the nearest cross-state matches in the published Census data, not neighboring counties or recommendations. Peers are rebuilt with each data release; see the calculation method.
Similar effective rates
Similar published median-tax changes, 2020–2024
St. Charles County: only 8% of returns show Schedule A real-estate tax
Tax year 2022: 16,730 of 206,160 returns from St. Charles County reported real estate taxes, averaging $5,024 - 38% of those reporters sat in the $100-200k AGI band.
What this IRS county file does not say
Amounts are reported before the SALT cap, not deducted; the share is of filers, not homeowners. Source: IRS SOI county data, tax year 2022.
Other Counties in Missouri
St. Charles County bill FAQs
- How does St. Charles County property tax compare to the national average?
- Property taxes in St. Charles County run far above the national median of $1,993, an effective rate of 1.08% versus 0.92% nationally.
- What is the average property tax in St. Charles County, Missouri?
- The median annual property tax in St. Charles County is $3,480, an effective rate of 1.08% on a $320,800 median home (Census ACS, 2024).
- What is the tax affordability score for St. Charles County?
- St. Charles County, Missouri scores F (33/100) on PlainPropertyTax's tax affordability composite across 5 Census ACS dimensions (effective rate, bill size, income share, mortgage gap, and home-value/income). Its strongest scored dimension here is mortgage premium at B (+$140). The score compares published county medians to U.S. percentiles, it is not a personal bill and not advice to buy, sell, appeal, or relocate.
- Are property taxes increasing in St. Charles County?
- The ACS median property-tax bill for St. Charles County jumped 23.8% between the 2020 and 2024 5-year releases, from $2,811 to $3,480, a 4-year span. These are survey estimates covering five years each, so this compares the two releases furthest apart rather than consecutive ones, which overlap and would mostly measure the same households twice.
- What percentage of income goes to property taxes in St. Charles County?
- Property taxes in St. Charles County run within the commonly cited 2%-4% national benchmark, at about 3.3% of the $104,692 median household income.
What to do with St. Charles County's HEAVY bill
St. Charles County's $3,480 median bill sits well above the U.S. median - size a personal estimate before treating the county headline as your budget. Estimate your bill →
St. Charles County ranks #4 of 115 Missouri counties by effective rate - on the higher-burden half of the state ACS set. Missouri overview →
Nationwide peers by median bill (then rate)
Bill-first peers for St. Charles County's HEAVY median, then a disjoint out-of-state rate set, not the same-state geography lattice.
Similar effective rate
Nearest out-of-state counties by ACS effective rate. This county: 1.08%.
Similar median bill
Nearest out-of-state counties by ACS median annual tax. This county: $3,480/yr. Rate peers are excluded so the two link sets stay distinct.
Read with St. Charles County
Nearest ABS(median_tax) ACS peers for St. Charles County (PAR · HEAVY), replacing the old fixed Keep exploring strip.
PAR HEAVY
Yates County, NY
ABS(median_tax) peer · $3,477/yr (near-tied bill ABS $3); rate 1.88% vs St. Charles County 1.08%.
Bell County, TX
ABS(median_tax) peer · $3,476/yr (near-tied bill ABS $4); rate 1.44% vs St. Charles County 1.08%.
Lake County, OH
ABS(median_tax) peer · $3,475/yr (near-tied bill ABS $5); rate 1.62% vs St. Charles County 1.08%.
Chambers County, TX
ABS(median_tax) peer · $3,474/yr (near-tied bill ABS $6); rate 1.05% vs St. Charles County 1.08%.
Missouri county set
State ACS overview for every published Missouri county rate and median bill.
Assessment cycle basics
St. Charles County stamps PAR · HEAVY - how assessed value and millage become the ACS median bill.
Data vintage and method
Data as of 2024. Source: U.S. Census Bureau, American Community Survey 5-Year Estimates.
Property tax data reflects median amounts paid by homeowners. Effective rates are calculated as median tax divided by median home value.
Source: U.S. Census Bureau American Community Survey 5-Year Estimates, county median real-estate taxes · 2024 St. Charles County (PAR · HEAVY) - ACS medians, not a parcel bill.