Johnston City, Illinois sales tax rate: 8.75%
Last updated Checked monthly
The sales tax rate in Johnston City, Illinois is 8.75%. That’s the 6.25% state rate plus 2.5% in local taxes. It’s higher than 259 of the 331 Illinois cities we checked, and 15 other cities pay the same.
Calculated by the 
Sales Tax APIThe same engine Zamp customers use.Johnston City combined rate
8.75%
- Illinois state
- 6.25%
- Williamson CountyCounty
- 1%
- JohnstonCity
- 1.5%
Johnston City sales tax calculator
Enter a price and what you’re selling.
- IllinoisState · 6.25%$6.25
- Williamson CountyCounty · 1%$1.00
- Johnston City City (Williamson County)City · 1.5%$1.50
Charging this at checkout? Zamp calculates it on every order and files the returns.
Book a demoJohnston City sales tax rate breakdown
State, county and city taxes add up to 8.75%.
| Jurisdiction | Type | Rate |
|---|---|---|
| State of Illinois | State | 6.25% |
| Williamson County | County | 1% |
| Johnston City City (Williamson County) | City | 1.5% |
| Combined rate | 8.75% |
Rate history
- July 20238.75%
- July 20248.75%
- July 20258.75%
- July 20268.75%
- Today8.75%
No change since July 2023.
Sales tax near Johnston City
Closest cities
- Spillertown4 mi8.25%
- Marion6 mi9.5%
- Colp8 mi8.25%
- Zeigler9 mi7.25%
- De Soto16 mi7.25%
- Galatia17 mi8%
- Carbondale17 mi9.75%
- Goreville19 mi7.75%
Elsewhere in Williamson County
- Marion9.5%
- Spillertown8.25%
- Colp8.25%
Charge the right rate in Johnston City, on every order.
Zamp calculates tax at each customer’s address, then files and pays every Illinois return for you, with a sales tax team you can call.
Johnston City sales tax questions.
Still have questions? Call us at 1-866-438-9267 or email us at support@zamp.com.
What is the sales tax rate in Johnston City, Illinois?
The combined sales tax rate in Johnston City is 8.75% as of November 2, 2026. It’s made up of 6.25% Illinois state tax, 1% Williamson County, 1.5% Johnston City City (Williamson County).
Does the sales tax rate vary within Johnston City?
Johnston City has no special-district taxes, so most addresses in the city pay the same 8.75%: Illinois’s 6.25% plus 1% county tax plus 1.5% city tax. This rate was calculated for Johnston City’s 62951 ZIP code; the calculator prices any exact address.
Is SaaS taxable in Johnston City?
No.
Do online sellers have to collect sales tax in Johnston City?
Yes, if they have nexus in Illinois: more than $100,000 in Illinois sales in the previous or current calendar year, or a physical presence in the state. They register with the Illinois Department of Revenue and charge the rate at the buyer’s address.
Sources. Illinois Department of Revenue · Zamp Sales Tax API, for Johnston City’s 62951 ZIP code. Rates are checked monthly and are for information, not tax advice.
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