Ross County, OH ZIP codes
There are 10 ZIP codes in Ross County, OH, in 10 towns, from 43101 to 45681. The largest are 45601 (Chillicothe), 45628 (Frankfort) and 45612 (Bainbridge). 1 more crosses into it from a neighbouring county: 45123.
The county seat is Chillicothe.
- ZIP codes
- 10
- Partly in it
- 1 more
- Towns
- 10
- County seat
- Chillicothe
- County FIPS
39141- State
- Ohio
- Population
- 76,492
- Median household income
- $61,303
- Land area
- 689 sq mi
- Metro area
- Chillicothe
Ross County ZIP codes by town
- Chillicothe (county seat)
- 45601
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
ZIP codes partly in Ross County
This ZIP code lies mostly in a neighbouring county but covers a twentieth or more of Ross County.
- 45123 Greenfield · mostly in Highland County
Map of Ross County ZIP codes
The ZIP codes of Ross County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Ross County in numbers
About 76,492 people live in Ross County, in 29,808 households, the 32nd most populous of Ohio's 88 counties. The median household income is $61,303 a year, 14% below the Ohio median of $71,389 (US: $80,734). The median owner-occupied home is valued at $171,500 (20% below the Ohio median), and median gross rent is $906 a month. The median age is 41.1; 17.4% of adults 25 and over hold a bachelor's degree or higher (31.5% across Ohio); the average commute takes 26 minutes.
| Population | 76,492 |
|---|---|
| Households | 29,808 |
| Median age | 41.1 |
| Median household income | $61,303 |
| Median home value | $171,500 |
| Median gross rent | $906 |
| Bachelor's degree or higher | 17.4% |
| Mean commute | 26.4 min |
| Population density | 111 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Ross County
| Town | ZIP codes | Population |
|---|---|---|
| Chillicothe | 1 | 21,902 |
| Frankfort | 1 | 1,171 |
| Kingston | 1 | 703 |
| Bainbridge | 1 | 617 |
| Bourneville | 1 | 509 |
| Richmond Dale | 1 | 473 |
| Clarksburg | 1 | 464 |
| Adelphi | 1 | 316 |
| South Salem | 1 | 185 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Ross County.
- Pickaway County (9)
- Highland County (7)
- Jackson County (5)
- Fayette County (4)
- Hocking County (9)
- Pike County (8)
- Vinton County (8)
Not sure you are in Ross County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Ross County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
43101 | Adelphi , OH | Standard | 316 | $39,107 | $164,300 |
43115 | Clarksburg , OH | Standard | 1,796 | $94,265 | $156,700 |
45601 | Chillicothe , OH | Standard | 55,836 | $59,748 | $173,100 |
45612 | Bainbridge , OH | Standard | 4,933 | $53,500 | $147,300 |
45617 | Bourneville , OH | Standard | 0 | — | — |
45628 | Frankfort , OH | Standard | 5,999 | $72,587 | $182,800 |
45633 | Hallsville , OH | No street area | — | — | — |
45644 | Kingston , OH | Standard | 4,619 | $74,219 | $238,300 |
45673 | Richmond Dale , OH | Standard | 473 | $64,438 | $87,000 |
45681 | South Salem , OH | Standard | 1,451 | $49,510 | $143,200 |
Cite this page
zipcodes.pro. “Ross County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/oh/county/ross
Underlying data is public domain or openly licensed — sources, vintages and licences.