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Sales tax in Riley County, Kansas

By Brent Chudoba, editor Updated

There is no single sales tax rate in Riley County. It runs from 7.2% to 9.9% depending on the exact address, because cities and special districts inside the county levy their own on top of the 6.5% state rate. The 6.5% state rate applies everywhere in the county; everything above that depends on where you are standing. These rates were read from Kansas's own published schedule and checked on October 1, 2026.

What is the sales tax rate in Riley County?

Sales tax rate components in Riley County, Kansas
Kansas state rate6.5%
Riley County rate0.7%
Lowest combined rate in the county7.2%
Highest combined rate in the county9.9%

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

How much sales tax is that on a purchase in Riley County?

At 7.2%, a $100 purchase carries $7.20 in sales tax and a $1,000 purchase $72.00, at the lowest rate in the county. At the highest, 9.9%, the same purchases carry $9.90 and $99.00. That is general merchandise; Kansas taxes some categories, often groceries, differently, as the note below explains.

Among Kansas's 105 counties, Riley County's lowest rate ranks 90th highest. See every Kansas county.

Sales tax in counties next to Riley County

Riley County borders 6 counties. The lowest rate next door is 7% in Marshall County, KS, which is $2.00 less on a $1,000 purchase than the lowest rate in Riley County.

Riley County and its neighbors, highest rate first
CountyCombined sales tax
Wabaunsee County, KS8% to 10%
Geary County, KS7.75% to 11.5%
Clay County, KS7.5% to 9.5%
Pottawatomie County, KS7.5% to 10%
Washington County, KS7.5% to 8.5%
Riley County, KS (this county)7.2% to 9.9%
Marshall County, KS7% to 9%

Why the rate here is not the whole story

Kansas charges 6.5 percent statewide on general merchandise and then stacks a county rate, city rates and community improvement or transportation development district rates whose boundaries do not follow county lines, so a single rate for the whole county does not exist. The county itself levies 0.7 percent countywide. The floor of 7.2 percent is state plus county in unincorporated areas with no city and no district tax. The ceiling of 9.9 percent is at Manhattan Town Center CID, a community improvement or transportation development district that covers a single development rather than a town, so it applies only to the street addresses the state lists for it and not to the surrounding city. Kansas finished phasing its state rate on qualifying food down to 0 percent on January 1 2025, so groceries pay only the local part of these rates, but the figures here are the general merchandise rates.

How do I find the exact rate for an address in Riley County?

Use Kansas's own address lookup. In Riley County the rate depends on the address, anywhere from 7.2% to 9.9%.

Who has to collect sales tax in Riley County?

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

Work out your own numbers

Sources