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Sales tax in St. Clair County, Missouri

By Brent Chudoba, editor Updated

There is no single sales tax rate in St. Clair County. It runs from 5.225% to 8.1% depending on the exact address, because cities and special districts inside the county levy their own on top of the 4.225% state rate. The 4.225% state rate applies everywhere in the county; everything above that depends on where you are standing. These rates were read from Missouri's own published schedule and checked on October 1, 2026. The rate in each of the 9 cities is in the table below.

What is the sales tax rate in St. Clair County?

Sales tax rate components in St. Clair County, Missouri
Missouri state rate4.225%
St. Clair County rate1%
Lowest combined rate in the county5.225%
Highest combined rate in the county8.1%

The combined figures are the lowest and highest totals anywhere in St. Clair County, so the rows above do not add up to them.

What is the sales tax rate in each city in St. Clair County?

Missouri publishes the rate for every city it taxes. These are the combined rates, state and local together, as listed in Missouri's own rate file. Where a city shows a range, a special district covers only part of it, so the rate depends on the exact address.

Sales tax rate by city in St. Clair County, Missouri
CityOctober 1 to December 31, 2026
Appleton City8.1%
Collins6.1%
Gerster6.1%
Iconium5.225%
Lowry City7.475%
OsceolaOsceola has two rates: 6.6% and 7.6%. The higher rate applies inside a community improvement district (CID), for example 13 82 CID. From October 1, 2026, two rates apply: 7.1% and 8.1%. The higher rate applies inside a community improvement district (CID), for example 13 82 CID.7.1% to 8.1%
Roscoe5.225%
Taberville5.225%
Vista5.225%
Unincorporated St. Clair County5.225%

Source: Missouri rate file for October 1 to December 31, 2026, from Missouri's official rate page.

How much sales tax is that on a purchase in St. Clair County?

At 5.225%, a $100 purchase carries $5.23 in sales tax and a $1,000 purchase $52.25, at the lowest rate in the county. At the highest, 8.1%, the same purchases carry $8.10 and $81.00. That is general merchandise; Missouri taxes some categories, often groceries, differently, as the note below explains.

St. Clair County's lowest rate is the lowest in Missouri, shared with 2 other counties. See every Missouri county.

Sales tax in counties next to St. Clair County

St. Clair County borders 7 counties.

St. Clair County and its neighbors, highest rate first
CountyCombined sales tax
Cedar County, MO6.475% to 8.725%
Benton County, MO6.225% to 9.1%
Hickory County, MO6.225% to 8.225%
Henry County, MO6.175% to 8.925%
Polk County, MO5.6% to 8.85%
Bates County, MO5.225% to 8.85%
Vernon County, MO5.225% to 8.725%
St. Clair County, MO (this county)5.225% to 8.1%

Why the rate here is not the whole story

Missouri charges 4.225 percent statewide and then stacks a county rate, city rates and special district rates whose boundaries do not follow county lines, so a single rate for the whole county does not exist. The county itself levies 1 percent countywide. The floor of 5.225 percent is state plus county in unincorporated areas with no city and no district. The ceiling of 8.1 percent is at Appleton City. Missouri's address level rate map is required by RSMo 32.310 and is operated for the Department of Revenue on a vendor domain, which is the map dor.mo.gov itself links.

How do I find the exact rate for an address in St. Clair County?

Use Missouri's own address lookup, which the state designates and an outside provider runs for it. In St. Clair County the rate depends on the address, anywhere from 5.225% to 8.1%.

Who has to collect sales tax in St. Clair County?

Any seller with a physical presence in Missouri collects at the rate for the address of the sale; a remote seller does once it passes Missouri's economic nexus threshold. Missouri sales tax covers the statewide rules and what is exempt.

Work out your own numbers

Sources