66778 ZIP Code — Treece, KS
Cherokee County, Kansas
ZIP code 66778 is located in Treece, Kansas, within Cherokee County. It covers approximately 0.19 square miles and serves a population of 0 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 620.
0
population
0.19
sq mi land
Standard
ZIP type
Central (CT)
timezone
66778 ZIP code map
Cities in ZIP code 66778
Below are the cities the US Postal Service accepts for ZIP code 66778. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Treece | Acceptable |
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 0 |
| Population density | 0 / sq mi |
| State FIPS | 20 |
| County FIPS | 021 |
| Geography | |
|---|---|
| Land area | 0.19 sq mi |
| Water area | 0.00 sq mi |
| Latitude | 37.0005 |
| Longitude | -94.8409 |
| Timezone | Central (CT) |
| Area code | 620 |