Get All Ohio Counties

Returns the complete catalog of all 88 Ohio counties, statutory FIPS codes, active combined tax rates, and component levy breakdowns.

Query Parameters

searchstringquery

Filter counties by name or prefix (e.g. ?search=franklin or ?search=cuya).

sortstringquery

Sort results by name, rate_asc, or rate_desc (defaults to name).

Code Examples

curl -X GET "https://app.ohiosalestaxcalculator.com/api/v1/counties" \
  -H "Accept: application/json"

const res = await fetch("https://app.ohiosalestaxcalculator.com/api/v1/counties");
const { counties, state_base_rate } = await res.json();
console.log(`Retrieved ${counties.length} counties. Base rate: ${(state_base_rate * 100).toFixed(2)}%`);

import requests

res = requests.get("https://app.ohiosalestaxcalculator.com/api/v1/counties")
data = res.json()
print(f"Total Counties: {data['total']}")

Response (200 OK)

totalnumberrequired

Total number of counties returned (88).

state_base_ratenumberrequired

Statewide baseline sales tax rate (0.0575 / 5.75%).

last_reconciledstringrequired

Timestamp when rates were verified against the Ohio Department of Taxation.

countiesarrayrequired

County Item Properties

countystring

Canonical county name.

slugstring

URL-friendly lowercase slug.

fipsstring

5-digit US Census Bureau FIPS code.

combined_ratenumber

Total combined sales tax rate.

componentsobject

Breakdown of state (0.0575), county permissive levy, and transit authority.

effective_fromstring | null

Date the current rate took legal effect, or null when not recorded.

transit_district_possibleboolean

True for Delaware, Fairfield, Licking, Union (COTA) and Wood (TARTA): combined_rate is the countywide rate and part of the county pays more. See transit_district.combined_rate_inside.

transit_districtobject | null

Transit district that partly covers the county, or null. Same shape as on the Rates endpoint.

has_upcoming_changeboolean

True if an upcoming rate adjustment is enacted.

Response Example

{
  "total": 88,
  "state_base_rate": 0.0575,
  "last_reconciled": "2026-10-01",
  "statutory_authority": "Ohio Department of Taxation (ODT)",
  "counties": [
    {
      "county": "Adams",
      "slug": "adams",
      "fips": "39001",
      "combined_rate": 0.0725,
      "components": {
        "state": 0.0575,
        "county": 0.015,
        "transit": 0.0
      },
      "effective_from": null,
      "transit_district_possible": false,
      "transit_district": null,
      "has_upcoming_change": false,
      "source": "Ohio Department of Taxation"
    },
    {
      "county": "Franklin",
      "slug": "franklin",
      "fips": "39049",
      "combined_rate": 0.08,
      "components": {
        "state": 0.0575,
        "county": 0.0125,
        "transit": 0.01
      },
      "effective_from": "2025-04-01",
      "transit_district_possible": false,
      "transit_district": null,
      "has_upcoming_change": false,
      "source": "Ohio Department of Taxation"
    }
  ]
}