Darke County, Ohio Sales Tax Rate
Buying anywhere in Darke County? The combined sales tax rate is 7.25%. Below is the full breakdown and a calculator already set to Darke County.
Darke County Rate Breakdown
Bordering County Savings Radar
How Darke's 7.25% rate compares on a $100.00 purchase across county lines
Retail Purchases
Under R.C. 5739.033(B)(1), sales made by Ohio vendors are origin-sourced to where the order is received. Out-of-state remote sellers shipping to Darke County charge this 7.25% destination rate.
Vehicle Titling
Under R.C. 4505.06, motor vehicles are taxed strictly by your county of residence at titling. On a $30,000 vehicle, Darke County residents owe $2,175.00.
Groceries & Medicine
Unprepared food for human consumption and prescription drugs are 100% exempt ($0 tax) statewide in Darke County under the Ohio Constitution (Art. XII, § 13), R.C. 5739.02(B)(2) (food), and R.C. 5739.02(B)(18) (prescription drugs).
Darke County's 7.25% rate sits above the statewide average of 7.14%. Across Ohio, combined rates run from 6.50% to 8.00%. Compare all 88 Ohio county rates side by side.
Anywhere in Darke County, a taxable purchase adds 1.50% in county and transit tax on top of Ohio's 5.75% state base — the 7.25% combined rate shown above. 50 of Ohio's 88 counties charge this exact rate. Cars, general merchandise, and prepared restaurant food are all taxed at 7.25%, while unprepared groceries and prescription drugs stay exempt statewide.
Ranked against the rest of the state, Darke County is the 8th-highest of Ohio's 88 counties, tied with 50 others on 7.25%. In hard numbers that matters most on big-ticket buys: a $30,000.00 car costs $2,175.00 in sales tax here. Registering the same car in Butler County (6.50%, Ohio's lowest) would cost $1,950.00 — a $225.00 difference. At the other end, Cuyahoga County (8.00%) would charge $2,400.00. Ohio taxes a vehicle at the rate of the buyer's county of residence, not the dealer's, so the county on your registration is the one that sets the bill.
Darke County is seated at Greenville, covers 600 square miles and is home to 51,655 people — the 49th-most-populous of Ohio's 88 counties, at about 86 people per square mile. 15 ZIP codes fall inside it, running from 45303 to 45390, and every one of them pays the same 7.25% — Ohio municipalities cannot levy a sales tax of their own, so there is no city surcharge anywhere in the county. Darke County also borders Indiana, where a different state's sales tax applies entirely — Ohio's 5.75% base does not follow you across the state line, but Ohio use tax generally does when you bring the item home.
Population: U.S. Census Bureau, American Community Survey 5-year estimate (2023).
Calculate tax in Darke County
Calculate Ohio Sales Tax
Ohio · 2026 tax year · all 88 countiesCalculate total cost and exact Ohio state + county tax on your pre-tax purchase.
An official 2026 estimate based on Ohio Department of Taxation rate schedules (R.C. 5739.02). Actual checkout receipts round intermediate fractions per R.C. 5739.025.
Darke County sales tax by purchase amount
| Purchase | Sales Tax (7.25%) | Total |
|---|---|---|
| $1.00 | $0.07 | $1.07 |
| $5.00 | $0.36 | $5.36 |
| $10.00 | $0.73 | $10.73 |
| $25.00 | $1.81 | $26.81 |
| $50.00 | $3.63 | $53.63 |
| $100.00 | $7.25 | $107.25 |
| $500.00 | $36.25 | $536.25 |
| $1,000.00 | $72.50 | $1,072.50 |
Groceries and prescription drugs are exempt statewide, so they carry $0 tax in Darke County. Prepared food and general merchandise are taxed at 7.25%.
Darke County sales tax FAQ
Statutory guidance reconciled against official Ohio Department of Taxation regulations, county permissive levies, and R.C. 5739 sourcing rules.
The combined sales tax rate in Darke County is 7.25% in 2026. That is Ohio's 5.75% state base plus a 1.50% county and transit portion.
At 7.25%, sales tax on a $100 taxable purchase in Darke County is $7.25, for a total of $107.25.
No. Unprepared groceries and prescription drugs are exempt from Ohio sales tax statewide, so they are not taxed in Darke County. Prepared food is taxable at 7.25%.
15 Ohio ZIP codes have Darke County as their primary county, including 45303, 45304, 45328, 45331, 45332. All of them use the 7.25% combined rate. Because ZIP boundaries can cross county lines, a delivery address near the county line should be checked against Ohio's rate-by-address lookup.
Darke County borders Miami (7.00%), Mercer (7.25%), Preble (7.25%), Shelby (7.25%), Montgomery (7.50%), plus Indiana. Miami County is the cheapest at 7.00%, 0.25% below Darke's 7.25%.
At 7.25%, Darke County has the 8th-highest combined sales tax rate of Ohio's 88 counties, tied with 50 other counties. Statewide, combined rates run from 6.50% to 8.00%.
Counties bordering Darke County
Darke County shares a line with 5 other Ohio counties plus Indiana. Crossing one of these lines genuinely changes the bill — though which side counts depends on who is selling: an Ohio seller charges its own county's rate on an intrastate sale, while an out-of-state or marketplace seller charges yours.
| County | Combined rate | vs Darke | Tax on $30,000.00 |
|---|---|---|---|
| Miami County | 7.00% | −0.25% | $2,100.00 |
| Mercer County | 7.25% | same | $2,175.00 |
| Preble County | 7.25% | same | $2,175.00 |
| Shelby County | 7.25% | same | $2,175.00 |
| Montgomery County | 7.50% | +0.25% | $2,250.00 |
Miami County is the cheapest county touching Darke at 7.00% — $75.00 less tax on a $30,000.00 vehicle. That only helps you if you actually live there: Ohio charges vehicle sales tax at the rate of the buyer's county of residence, not the seller's.
ZIP codes in Darke County (7.25% sales tax)
15 Ohio ZIP codes have Darke County as its primary county. Every address in them pays the same 7.25% combined rate — 5.75% state plus 1.50% county and transit.
- 45303
- 45304
- 45328
- 45331
- 45332
- 45346
- 45348
- 45350
- 45351
- 45352
- 45358
- 45362
- 45380
- 45388
- 45390
ZIP codes are a USPS delivery construct and a few straddle county lines, so a border address can fall in a different taxing county than its ZIP suggests. Check any borderline address with the ZIP code sales tax lookup or Ohio's official rate-by-address finder before you file.
Compare Darke County rates
- Butler — 6.50%
- Cuyahoga — 8.00%
- Franklin — 8.00%
- Hamilton — 7.80%
- Lucas — 7.75%
- Montgomery — 7.50%
- Stark — 6.50%
- Summit — 6.75%
- Fayette — 7.25%
- Fulton — 7.25%
- Gallia — 7.25%
- Guernsey — 7.25%
- Hardin — 7.25%
- Harrison — 7.25%
- See all 88 counties →
- Browse Ohio rates by city →
Bordering counties: Compare Darke County (7.25%) with neighboring Miami County (7.00%), Mercer County (7.25%), and Preble County (7.25%).
Commercial sellers: Review our guide on Ohio sales tax due dates and monthly filing calendar to stay fully aligned with state tax regulations.
Compare statewide: See where Darke County ranks across the full Ohio sales tax rates by county table.
Cross-border shopping & vehicles: Buying across state lines? Check our Ohio vs. Indiana sales tax comparison (Darke border).
Address verification: Some postal ZIP codes in Darke County touch adjacent counties. To look up a precise street address, use our Ohio sales tax rate by address tool.
Ohio Sales Tax Core Reference Guides:
Rate source: the 7.25% combined rate for Darke County was verified against the Ohio Department of Taxation's County Rate Table by ZIP Code on . Ohio county rates change on quarterly boundaries; for a legally definitive rate at a specific street address, use the Department's The Finder lookup — our guide to using The Finder walks through it.