45601 ZIP Code: Chillicothe, Ohio
ZIP code 45601 covers Chillicothe, Ohio. It sits in Ross County. A ZIP code is a US Postal Service mail route, not a boundary on a map, so it describes where post is delivered rather than an administrative area.
| ZIP code | 45601 |
|---|---|
| Place | Chillicothe |
| State | Ohio (OH) |
| County or equivalent | Ross County |
| Phone area codes in Ohio | 14 |
| Country | United States |
ZIP codes near 45601
- 45617 Bournevilleabout 10 miles
- 45644 Kingstonabout 10 miles
- 45647 Londonderryabout 12 miles
- 45628 Frankfortabout 12 miles
- 45673 Richmond Daleabout 13 miles
- 43115 Clarksburgabout 14 miles
- 45690 Waverlyabout 15 miles
- 45681 South Salemabout 15 miles
Distances are straight-line, between the approximate centres of each delivery area.
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Frequently asked questions
Where is ZIP code 45601?
ZIP code 45601 is in Chillicothe, Ohio, in Ross County. ZIP codes are mail delivery routes rather than mapped regions, so the code identifies a set of addresses the Postal Service serves together, not a district with fixed borders.
What county is 45601 in?
45601 is in Ross County, Ohio. A single ZIP code can straddle a county line, because mail routes were drawn for delivery efficiency and take no notice of county boundaries, so the county shown is the one the code is primarily associated with.
What area code goes with ZIP code 45601?
ZIP codes and telephone area codes are separate systems with different boundaries, so no ZIP code maps to exactly one area code. Ohio uses 14 geographic area codes: 216, 220, 234, 283, 326, 330, 380, 419, 440, 513, 567, 614, 740 and 937.
Is 45601 a real ZIP code?
Yes. 45601 appears in the GeoNames postal-code dataset as an active US code assigned to Chillicothe, Ohio. Codes that have been retired or never issued do not appear, which is why entering one on this site returns a not-found page rather than a blank record.
Why do ZIP code boundaries look odd on maps?
Because they are not boundaries. A ZIP code is a collection of mail routes, and a route is a line a carrier walks or drives, not an area. Any ZIP code map you have seen is somebody's approximation drawn around the addresses in a code, which is also why two ZIP code maps rarely agree with each other.
Can two addresses in the same ZIP code be in different cities?
Yes, routinely. The Postal Service assigns a preferred city name to each code for addressing purposes, and that name often covers several neighbouring towns, unincorporated areas or a whole postal district. The place shown here is the one the source names for the code, not a claim that every address in it is inside that town's limits.
ZIP code, place, county and location data from GeoNames, used under CC BY 4.0, extracted 2026-08-22. ZIP codes are Postal Service delivery routes, not administrative areas, so a code can cross city and county lines and the place name shown is the one the source records for the code. Coordinates are an approximate centre of the delivery area, not a precise location. Population and time zone are not shown because the source does not publish them.