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Sales tax in Cool Valley, MO

~10.488% combined sales tax rate
Estimated

The combined sales tax rate in Cool Valley, MO is about 10.488%. Some local taxes in this state are not yet mapped, so the true rate may be higher.

Estimated from 1 ZIP code covering Cool Valley. Enter your ZIP code in the calculator for a closer figure.

ZIP code
63121, shared with Bel-nor, Bel-ridge, Berkeley, Berkeley (t2), Beverly Hills, Cool Valley (t1), Ferguson, Ferguson (t3), Greendale, Hillsdale, Jennings, Jennings (t7), Normandy, Northwoods, Norwood Court, Pagedale, Pagedale (t10), Pasadena Hills, Pasadena Park, Pine Lawn, St John, Uplands Park, Velda City, Velda Village Hills and Wellston.
County
St Louis County
City limits of Cool Valley, MO, covering 0.5 square miles of land
City limits · 0.5 sq mi Census TIGER/Line 2024, simplified. Not a tax boundary: districts cross it and the rate can differ inside it.

Who levies sales tax across Cool Valley's ZIP code

Each government below levies its own share, but not all of them reach every address: the ZIP code covering Cool Valley reaches into more than one city, and an address pays only the shares whose boundary it falls inside.

Tax rate components in Cool Valley, MO, with the source of each
Jurisdiction Type Rate Effective Source
Missouri state 4.225% Jan 1, 1993 Missouri sales and use tax rate tables
St Louis County county 3.513% Jul 1, 2026 Missouri sales and use tax rate tables
Bel-nor city 1.5% Jul 1, 2026 Missouri sales and use tax rate tables
Bel-ridge city 1.25% Jul 1, 2026 Missouri sales and use tax rate tables
Berkeley city 2% Jul 1, 2026 Missouri sales and use tax rate tables
Berkeley (t2) city 2% Jul 1, 2026 Missouri sales and use tax rate tables
Beverly Hills city 2% Jul 1, 2026 Missouri sales and use tax rate tables
Cool Valley city 1.75% Jul 1, 2026 Missouri sales and use tax rate tables
Cool Valley (t1) city 1.75% Jul 1, 2026 Missouri sales and use tax rate tables
Ferguson city 2% Jul 1, 2026 Missouri sales and use tax rate tables
Ferguson (t3) city 2% Jul 1, 2026 Missouri sales and use tax rate tables
Greendale city 2% Jul 1, 2026 Missouri sales and use tax rate tables
Hillsdale city 1.5% Jul 1, 2026 Missouri sales and use tax rate tables
Jennings city 1.75% Jul 1, 2026 Missouri sales and use tax rate tables
Jennings (t7) city 1.75% Jul 1, 2026 Missouri sales and use tax rate tables
Normandy city 2.5% Jul 1, 2026 Missouri sales and use tax rate tables
Northwoods city 1.25% Jul 1, 2026 Missouri sales and use tax rate tables
Norwood Court city 1.5% Jul 1, 2026 Missouri sales and use tax rate tables
Pagedale city 2.25% Jul 1, 2026 Missouri sales and use tax rate tables
Pagedale (t10) city 2.25% Jul 1, 2026 Missouri sales and use tax rate tables
Pasadena Hills city 1.5% Jul 1, 2026 Missouri sales and use tax rate tables
Pasadena Park city 1.5% Jul 1, 2026 Missouri sales and use tax rate tables
Pine Lawn city 2.75% Jul 1, 2026 Missouri sales and use tax rate tables
St John city 1.25% Jul 1, 2026 Missouri sales and use tax rate tables
Uplands Park city 1.5% Jul 1, 2026 Missouri sales and use tax rate tables
Velda City city 1.5% Jul 1, 2026 Missouri sales and use tax rate tables
Velda Village Hills city 2% Jul 1, 2026 Missouri sales and use tax rate tables
Wellston city 1.75% Jul 1, 2026 Missouri sales and use tax rate tables

No total is shown because more than one city is listed. An address falls inside only one of each, so these shares are alternatives rather than a stack, and adding them all up would give a figure nobody pays.

What can change the tax you pay in Cool Valley, MO

  • A shared ZIP code. Cool Valley's only ZIP code, 63121, is shared with Bel-nor, Bel-ridge, Berkeley, Berkeley (t2), Beverly Hills, Cool Valley (t1), Ferguson, Ferguson (t3), Greendale, Hillsdale, Jennings, Jennings (t7), Normandy, Northwoods, Norwood Court, Pagedale, Pagedale (t10), Pasadena Hills, Pasadena Park, Pine Lawn, St John, Uplands Park, Velda City, Velda Village Hills and Wellston. Which side of the city line an address is on decides whose rate applies, and the ZIP code alone cannot tell.
  • What you are buying. Categories are not taxed alike. The calculator switches between general merchandise, prepared food and lodging, which are the categories we hold rates for here.

How Cool Valley compares with the rest of Missouri

Cool Valley's ~10.488% is above what most ZIP codes carry in Missouri. Of the state's 1,153 ZIP codes with a figure, 16 land on the same one, 1,068 carry a lower figure and 69 a higher one. Across Missouri the combined rate runs from 4.725% to 13.238%. See every city in Missouri.

The most common combined sales tax figures in Missouri, by number of ZIP codes
Combined rate ZIP codes Which is this city
~6.725% 95
~7.225% 72
~6.225% 58
~8.725% 44
~8.975% 44
~10.488% 16 Cool Valley

Counted from ZIP-code figures. A tilde marks a band where some ZIP codes cross a tax boundary and are counted at their most likely rate.

How sales tax is collected

The seller generally collects the tax from the buyer at the point of sale and passes it to the authorities that levied it. In most states it is added at the till rather than included in the advertised price. Read how sales tax works, including sourcing rules, online purchases and who is required to collect.

Rates last verified: Sep 5, 2026. This is when the source was last read, not when this page was last edited.

TaxAndTips provides informational estimates from published tax-rate data. Actual tax treatment can depend on the product or service, the exact address, the transaction, exemption status and applicable law. For official obligations, consult the taxing authority or a qualified tax professional.

Why you can rely on these figures

Published rates
State and local rates compiled from the tax authorities that levy them.
Every figure sourced
See the jurisdiction breakdown and the document each rate came from.
No signup
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Missing means missing
Where a rate is not verified we say so instead of showing a short total.